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Debunking Acne Myths: Is Itching a Symptom of Acne?
Myth: Itching is not a symptom of acne
Acne vulgaris typically is not considered to be a pruritic disease; however, many patients experience itching, which leads them to scratch their acne lesions, causing secondary bacterial infections and subsequent scarring, hypopigmentation, or hyperpigmentation of the involved skin. Although itching rarely is mentioned as a clinical feature of acne, pruritus can be an important contributory factor to the burden of disability and impaired quality of life in acne patients of all ages, and acne itching may be an important target for therapy.
In a descriptive study of 120 consecutive acne patients in Singapore, itch was found to be a common (70% of patients) and debilitating symptom of acne. The majority of patients (83%) reported itch at noon with severity that was comparable to a mosquito bite, and the most common physical descriptor was tickling (68%). Common aggravating factors included sweat (71%), heat (62%), and stress (31%). Fifty-five percent of patients said itching had a negative impact on their mood, and 52% reported that they had scratched or rubbed the affected area.
A study of 108 adolescents with acne limited to the face yielded half who reported itching within acne lesions. The presence of itching was unrelated to age, gender, where they lived, positive family history, or acne severity. In most patients, pruritus appeared relatively infrequently and for a short period of time: 7.4% reported itching every day, 24.1% on a weekly basis, 29.6% at least once a month, and 37.7% even less frequently. Itch episodes lasted less than 1 minute in most participants. However, 31.5% of participants sought medical treatment to reduce itching. The most important factors aggravating the intensity of itching were sweat, stress, physical effort, heat, fatigue, and dry air, respectively.
Regarding the impact of acne itching on quality of life, 29.6% of participants felt depressed and 1.8% were anxious because of their itching. Some participants also noted that itching caused difficulties in falling asleep and awakening from itching.
The pathogenesis of localized itching in acne could be connected with the change in pH of the microenvironment of the acne follicle, providing an optimal environment for the production of histamine or histaminelike products by Propionibacterium acnes. Pruritus also may be a complication of certain acne therapies. Increased awareness among patients of this potential side effect may be helpful in preventing the unnecessary discontinuation of an otherwise effective acne therapy. Understanding factors that may aggravate itching in acne lesions also may be helpful to patients.
Lim YL, Chan YH, Yosipovitch G, et al. Pruritus is a common and significant symptom of acne [published online July 8, 2008]. J Eur Acad Dermatol Venereol. 2008;22:1332-1336.
Reich A, Trybucka K, Tracinska A, et al. Acne itch: do acne patients suffer from itching? Acta Derm Venereol. 2008;88:38-42.
Myth: Itching is not a symptom of acne
Acne vulgaris typically is not considered to be a pruritic disease; however, many patients experience itching, which leads them to scratch their acne lesions, causing secondary bacterial infections and subsequent scarring, hypopigmentation, or hyperpigmentation of the involved skin. Although itching rarely is mentioned as a clinical feature of acne, pruritus can be an important contributory factor to the burden of disability and impaired quality of life in acne patients of all ages, and acne itching may be an important target for therapy.
In a descriptive study of 120 consecutive acne patients in Singapore, itch was found to be a common (70% of patients) and debilitating symptom of acne. The majority of patients (83%) reported itch at noon with severity that was comparable to a mosquito bite, and the most common physical descriptor was tickling (68%). Common aggravating factors included sweat (71%), heat (62%), and stress (31%). Fifty-five percent of patients said itching had a negative impact on their mood, and 52% reported that they had scratched or rubbed the affected area.
A study of 108 adolescents with acne limited to the face yielded half who reported itching within acne lesions. The presence of itching was unrelated to age, gender, where they lived, positive family history, or acne severity. In most patients, pruritus appeared relatively infrequently and for a short period of time: 7.4% reported itching every day, 24.1% on a weekly basis, 29.6% at least once a month, and 37.7% even less frequently. Itch episodes lasted less than 1 minute in most participants. However, 31.5% of participants sought medical treatment to reduce itching. The most important factors aggravating the intensity of itching were sweat, stress, physical effort, heat, fatigue, and dry air, respectively.
Regarding the impact of acne itching on quality of life, 29.6% of participants felt depressed and 1.8% were anxious because of their itching. Some participants also noted that itching caused difficulties in falling asleep and awakening from itching.
The pathogenesis of localized itching in acne could be connected with the change in pH of the microenvironment of the acne follicle, providing an optimal environment for the production of histamine or histaminelike products by Propionibacterium acnes. Pruritus also may be a complication of certain acne therapies. Increased awareness among patients of this potential side effect may be helpful in preventing the unnecessary discontinuation of an otherwise effective acne therapy. Understanding factors that may aggravate itching in acne lesions also may be helpful to patients.
Myth: Itching is not a symptom of acne
Acne vulgaris typically is not considered to be a pruritic disease; however, many patients experience itching, which leads them to scratch their acne lesions, causing secondary bacterial infections and subsequent scarring, hypopigmentation, or hyperpigmentation of the involved skin. Although itching rarely is mentioned as a clinical feature of acne, pruritus can be an important contributory factor to the burden of disability and impaired quality of life in acne patients of all ages, and acne itching may be an important target for therapy.
In a descriptive study of 120 consecutive acne patients in Singapore, itch was found to be a common (70% of patients) and debilitating symptom of acne. The majority of patients (83%) reported itch at noon with severity that was comparable to a mosquito bite, and the most common physical descriptor was tickling (68%). Common aggravating factors included sweat (71%), heat (62%), and stress (31%). Fifty-five percent of patients said itching had a negative impact on their mood, and 52% reported that they had scratched or rubbed the affected area.
A study of 108 adolescents with acne limited to the face yielded half who reported itching within acne lesions. The presence of itching was unrelated to age, gender, where they lived, positive family history, or acne severity. In most patients, pruritus appeared relatively infrequently and for a short period of time: 7.4% reported itching every day, 24.1% on a weekly basis, 29.6% at least once a month, and 37.7% even less frequently. Itch episodes lasted less than 1 minute in most participants. However, 31.5% of participants sought medical treatment to reduce itching. The most important factors aggravating the intensity of itching were sweat, stress, physical effort, heat, fatigue, and dry air, respectively.
Regarding the impact of acne itching on quality of life, 29.6% of participants felt depressed and 1.8% were anxious because of their itching. Some participants also noted that itching caused difficulties in falling asleep and awakening from itching.
The pathogenesis of localized itching in acne could be connected with the change in pH of the microenvironment of the acne follicle, providing an optimal environment for the production of histamine or histaminelike products by Propionibacterium acnes. Pruritus also may be a complication of certain acne therapies. Increased awareness among patients of this potential side effect may be helpful in preventing the unnecessary discontinuation of an otherwise effective acne therapy. Understanding factors that may aggravate itching in acne lesions also may be helpful to patients.
Lim YL, Chan YH, Yosipovitch G, et al. Pruritus is a common and significant symptom of acne [published online July 8, 2008]. J Eur Acad Dermatol Venereol. 2008;22:1332-1336.
Reich A, Trybucka K, Tracinska A, et al. Acne itch: do acne patients suffer from itching? Acta Derm Venereol. 2008;88:38-42.
Lim YL, Chan YH, Yosipovitch G, et al. Pruritus is a common and significant symptom of acne [published online July 8, 2008]. J Eur Acad Dermatol Venereol. 2008;22:1332-1336.
Reich A, Trybucka K, Tracinska A, et al. Acne itch: do acne patients suffer from itching? Acta Derm Venereol. 2008;88:38-42.
Knotless Arthroscopic Reduction and Internal Fixation of a Displaced Anterior Cruciate Ligament Tibial Eminence Avulsion Fracture
Take-Home Points
- Technique provides optimal fixation while simultaneously protecting open growth plates.
- Self tensioning feature insures both optimal ACL tension and fracture reduction.
- No need for future hardware removal.
- 10Cross suture configuration optimizes strength of fixation for highly consistent results.
- Use fluoroscopy to avoid violation of tibial physis.
Generally occurring in the 8- to 14-year-old population, tibial eminence avulsion (TEA) fractures are a common variant of anterior cruciate ligament (ACL) ruptures and represent 2% to 5% of all knee injuries in skeletally immature individuals.1,2 Compared with adults, children likely experience this anomaly more often because of the weakness of their incompletely ossified tibial plateau relative to the strength of their native ACL.3
The open repair techniques that have been described have multiple disadvantages, including open incisions, difficult visualization of the fracture owing to the location of the fat pad, and increased risk for arthrofibrosis. Arthroscopic fixation is considered the treatment of choice for TEA fractures because it allows for direct visualization of injury, accurate reduction of fracture fragments, removal of loose fragments, and easy treatment of associated soft-tissue injuries.4-6Several fixation techniques for ACL-TEA fractures were recently described: arthroscopic reduction and internal fixation (ARIF) with Kirschner wires,7 cannulated screws,4 the Meniscus Arrow device (Bionx Implants),8 pull-out sutures,9,10 bioabsorbable nails,11 Herbert screws,12 TightRope fixation (Arthrex),13 and various other rotator cuff and meniscal repair systems.14,15 These approaches tend to have good outcomes for TEA fractures, but there are risks associated with ACL tensioning and potential tibial growth plate violation or hardware problems. Likewise, there are no studies with large numbers of patients treated with these new techniques, so the optimal method of reduction and fixation is still unknown.
In this article, we describe a new ARIF technique that involves 2 absorbable anchors with adjustable suture-tensioning technology. This technique optimizes reduction and helps surgeons avoid proximal tibial physeal damage, procedure-related morbidity, and additional surgery.
Case Report
History
The patient, an 8-year-old boy, sustained a noncontact twisting injury of the left knee during a cutting maneuver in a flag football game. He experienced immediate pain and subsequent swelling. Clinical examination revealed a moderate effusion with motion limitations secondary to swelling and irritability. The patient’s Lachman test result was 2+. Pivot shift testing was not possible because of guarding. The knee was stable to varus and valgus stress at 0° and 30° of flexion. Limited knee flexion prohibited placement of the patient in the position needed for anterior and posterior drawer testing. His patella was stable on lateral stress testing at 20° of flexion with no apprehension. Neurovascular status was intact throughout the lower extremity.
Anteroposterior and lateral radiographs showed a minimally displaced Meyers-McKeever type II TEA fracture (Figures 1A, 1B).
After discussing potential treatment options with the parents, Dr. Smith proceeded with arthroscopic surgery for definitive reduction and internal fixation of the patient’s left knee displaced ACL-TEA fracture. The new adjustable suture-tensioning fixation technique was used. The patient’s guardian provided written informed consent for print and electronic publication of this case report.
Examination Under Anesthesia
Examination with the patient under general anesthesia revealed 3+ Lachman, 2+ pivot shift with foot in internal and external rotation, and 1+ anterior drawer with foot in neutral and internal rotation. The knee was stable to varus and valgus stress testing.
Surgical Technique
Proper patient positioning and padding of bony prominences were ensured, and the limb was sterilely prepared and draped.
Given the young age of the patient, it was imperative to avoid the open proximal tibial growth plate. The surgical plan for stabilization involved use of two 3.0-mm BioComposite Knotless SutureTak anchors (Arthrex). This anchor configuration is based on a No. 2 FiberWire suture shuttled through itself to create a locking splice mechanism that allows for adjustable tensioning. The anchors were placed on each side of the tibial bony avulsion site with two No. 2 FiberWire sutures and were then crossed about the avulsion fracture fragment in an “x-type” configuration to secure the ACL back down to the bony bed.
First, a curette was used to débride fibrous tissue on the underside of the fracture fragment and on the fracture bed. Minimal amounts of cancellous bone were débrided from the tibial fracture bed to optimize fracture reduction by slightly recessing the fracture fragment to ensure optimal ACL tensioning (Figure 5).
Next, from the accessory superior medial portal, the end of the wire that had been passed through the medial aspect of the bony avulsion was retrieved through the lateral portal. This wire was used to shuttle the repair suture from the laterally positioned SutureTak anchor over and through the medial aspect of the bony fragment out of the accessory superior medial (Figure 7).
Follow-Up
Two weeks after surgery, the patient returned to clinic for suture removal. Four weeks after surgery, radiographs confirmed anatomical reduction of the TEA fracture, and outpatient physical therapy (range-of-motion exercises as tolerated) and isometric quadriceps strengthening were instituted. Twelve weeks after surgery, examination revealed full knee motion, negative Lachman and pivot shift test results, and residual quadriceps muscle atrophy, and radiographs confirmed complete fracture healing with maintenance of a normal proximal tibial growth plate (Figures 10A, 10B).
Discussion
The highlight of this case is the simplicity of an excellent reduction of a displaced ACL-TEA fracture. Minimally invasive absorbable implants did not violate the proximal tibial physis, and the unique adjustable suture-tensioning technology allowed the degree of reduction and ACL tension to be “dialed in.” SutureTak implants have strong No. 2 FiberWire suture for excellent stability with an overall small suture load, and their small size avoids the risk of violating the proximal tibial physis and avoids potential growth disturbances.
Despite the obvious risks it poses to the open proximal tibial physis, surgical reduction of Meyers-McKeever type II and type III fractures is the norm for restoring ACL stability. Screws and suture fixation are the most common and reliable methods of TEA fracture reduction.16,17 In recent systematic reviews, however, Osti and colleagues17 and Gans and colleagues18 noted there is not enough evidence to warrant a “gold standard” in pediatric tibial avulsion cases.
Other fixation methods for TEA fractures must be investigated. Anderson and colleagues19 described the biomechanics of 4 different physeal-sparing avulsion fracture reduction techniques: an ultra-high-molecular-weight polyethylene (UHMWPE) suture-suture button, a suture anchor, a polydioxanone suture-suture button, and screw fixation. Using techniques described by Kocher and colleagues,4 Berg,20 Mah and colleagues,21 Vega and colleagues,22 and Lu and colleagues,23 Anderson and colleagues19 reduced TEA fractures in skeletally immature porcine knees. Compared with suture anchors, UHMWPE suture-suture buttons provided biomechanically superior cyclic and load-to-failure results as well as more consistent fixation.
Screw fixation has shown good results but has disadvantages. Incorrect positioning of a screw can lead to impingement and articular cartilage damage, and screw removal may be needed if discomfort at the fixation site persists.24,25 Likewise, screws generally are an option only for large fracture fragments, as there is an inherent risk of fracturing small TEA fractures, which can be common in skeletally immature patients.
Brunner and colleagues26 recently found that TEA fracture repair with absorbable sutures and distal bone bridge fixation yielded 3-month radiographic and clinical healing rates similar to those obtained with nonabsorbable sutures tied around a screw. However, other authors have reported growth disturbances with use of a similar technique, owing to a disturbance of the open proximal tibial growth plate.9 In that regard, a major advantage of this new knotless suturing technique is that distal fixation is not necessary.
The minimally invasive TEA fraction reduction technique described in this article has 6 advantages: It provides excellent fixation while avoiding proximal tibial growth plate injury; the degree of tensioning is easily controlled during reduction; it uses strong suture instead of metal screws or pins; the reduction construct is low-profile; distal fixation is unnecessary; and implant removal is unnecessary, thus limiting subsequent surgical intervention. With respect to long-term outcomes, however, it is not known how this procedure will compare with other commonly used ARIF methods in physeal-sparing techniques for TEA fracture fixation.
This case report highlights a novel pediatric displaced ACL-TEA fracture reduction technique that allows for adjustable reduction and resultant ACL tensioning with excellent strong suture fixation without violating the proximal tibial physis, which could make it invaluable in the surgical treatment of this injury in skeletally immature patients.
Am J Orthop. 2017;46(4):203-208. Copyright Frontline Medical Communications Inc. 2017. All rights reserved.
1. Eiskjaer S, Larsen ST, Schmidt MB. The significance of hemarthrosis of the knee in children. Arch Orthop Trauma Surg. 1988;107(2):96-98.
2. Luhmann SJ. Acute traumatic knee effusions in children and adolescents. J Pediatr Orthop. 2003;23(2):199-202.
3. Woo SL, Hollis JM, Adams DJ, Lyon RM, Takai S. Tensile properties of the human femur-anterior cruciate ligament-tibia complex. The effects of specimen age and orientation. Am J Sports Med. 1991;19(3):217-225.
4. Kocher MS, Foreman ES, Micheli LJ. Laxity and functional outcome after arthroscopic reduction and internal fixation of displaced tibial spine fractures in children. Arthroscopy. 2003;19(10):1085-1090.
5. Lubowitz JH, Elson WS, Guttmann D. Part II: arthroscopic treatment of tibial plateau fractures: intercondylar eminence avulsion fractures. Arthroscopy. 2005;21(1):86-92.
6. Vargas B, Lutz N, Dutoit M, Zambelli PY. Nonunion after fracture of the anterior tibial spine: case report and review of the literature. J Pediatr Orthop B. 2009;18(2):90-92.
7. Sommerfeldt DW. Arthroscopically assisted internal fixation of avulsion fractures of the anterior cruciate ligament during childhood and adolescence [in German]. Oper Orthop Traumatol. 2008;20(4-5):310-320.
8. Wouters DB, de Graaf JS, Hemmer PH, Burgerhof JG, Kramer WL. The arthroscopic treatment of displaced tibial spine fractures in children and adolescents using Meniscus Arrows®. Knee Surg Sports Traumatol Arthrosc. 2011;19(5):736-739.
9. Ahn JH, Yoo JC. Clinical outcome of arthroscopic reduction and suture for displaced acute and chronic tibial spine fractures. Knee Surg Sports Traumatol Arthrosc. 2005;13(2):116-121.
10. Huang TW, Hsu KY, Cheng CY, et al. Arthroscopic suture fixation of tibial eminence avulsion fractures. Arthroscopy. 2008;24(11):1232-1238.
11. Liljeros K, Werner S, Janarv PM. Arthroscopic fixation of anterior tibial spine fractures with bioabsorbable nails in skeletally immature patients. Am J Sports Med. 2009;37(5):923-928.
12. Wiegand N, Naumov I, Vamhidy L, Not LG. Arthroscopic treatment of tibial spine fracture in children with a cannulated Herbert screw. Knee. 2014;21(2):481-485.
13. Faivre B, Benea H, Klouche S, Lespagnol F, Bauer T, Hardy P. An original arthroscopic fixation of adult’s tibial eminence fractures using the Tightrope® device: a report of 8 cases and review of literature. Knee. 2014;21(4):833-839.
14. Kluemper CT, Snyder GM, Coats AC, Johnson DL, Mair SD. Arthroscopic suture fixation of tibial eminence fractures. Orthopedics. 2013;36(11):e1401-e1406.
15. Ochiai S, Hagino T, Watanabe Y, Senga S, Haro H. One strategy for arthroscopic suture fixation of tibial intercondylar eminence fractures using the Meniscal Viper Repair System. Sports Med Arthrosc Rehabil Ther Technol. 2011;3:17.
16. Bogunovic L, Tarabichi M, Harris D, Wright R. Treatment of tibial eminence fractures: a systematic review. J Knee Surg. 2015;28(3):255-262.
17. Osti L, Buda M, Soldati F, Del Buono A, Osti R, Maffulli N. Arthroscopic treatment of tibial eminence fracture: a systematic review of different fixation methods. Br Med Bull. 2016;118(1):73-90.
18. Gans I, Baldwin KD, Ganley TJ. Treatment and management outcomes of tibial eminence fractures in pediatric patients: a systematic review. Am J Sports Med. 2014;42(7):1743-1750.
19. Anderson CN, Nyman JS, McCullough KA, et al. Biomechanical evaluation of physeal-sparing fixation methods in tibial eminence fractures. Am J Sports Med. 2013;41(7):1586-1594.
20. Berg EE. Pediatric tibial eminence fractures: arthroscopic cannulated screw fixation. Arthroscopy. 1995;11(3):328-331.
21. Mah JY, Otsuka NY, McLean J. An arthroscopic technique for the reduction and fixation of tibial-eminence fractures. J Pediatr Orthop. 1996;16(1):119-121.
22. Vega JR, Irribarra LA, Baar AK, Iniguez M, Salgado M, Gana N. Arthroscopic fixation of displaced tibial eminence fractures: a new growth plate-sparing method. Arthroscopy. 2008;24(11):1239-1243.
23. Lu XW, Hu XP, Jin C, Zhu T, Ding Y, Dai LY. Reduction and fixation of the avulsion fracture of the tibial eminence using mini-open technique. Knee Surg Sports Traumatol Arthrosc. 2010;18(11):1476-1480.
24. Bonin N, Jeunet L, Obert L, Dejour D. Adult tibial eminence fracture fixation: arthroscopic procedure using K-wire folded fixation. Knee Surg Sports Traumatol Arthrosc. 2007;15(7):857-862.
25. Senekovic V, Veselko M. Anterograde arthroscopic fixation of avulsion fractures of the tibial eminence with a cannulated screw: five-year results. Arthroscopy. 2003;19(1):54-61.
26. Brunner S, Vavken P, Kilger R, et al. Absorbable and non-absorbable suture fixation results in similar outcomes for tibial eminence fractures in children and adolescents. Knee Surg Sports Traumatol Arthrosc. 2016;24(3):723-729.
Take-Home Points
- Technique provides optimal fixation while simultaneously protecting open growth plates.
- Self tensioning feature insures both optimal ACL tension and fracture reduction.
- No need for future hardware removal.
- 10Cross suture configuration optimizes strength of fixation for highly consistent results.
- Use fluoroscopy to avoid violation of tibial physis.
Generally occurring in the 8- to 14-year-old population, tibial eminence avulsion (TEA) fractures are a common variant of anterior cruciate ligament (ACL) ruptures and represent 2% to 5% of all knee injuries in skeletally immature individuals.1,2 Compared with adults, children likely experience this anomaly more often because of the weakness of their incompletely ossified tibial plateau relative to the strength of their native ACL.3
The open repair techniques that have been described have multiple disadvantages, including open incisions, difficult visualization of the fracture owing to the location of the fat pad, and increased risk for arthrofibrosis. Arthroscopic fixation is considered the treatment of choice for TEA fractures because it allows for direct visualization of injury, accurate reduction of fracture fragments, removal of loose fragments, and easy treatment of associated soft-tissue injuries.4-6Several fixation techniques for ACL-TEA fractures were recently described: arthroscopic reduction and internal fixation (ARIF) with Kirschner wires,7 cannulated screws,4 the Meniscus Arrow device (Bionx Implants),8 pull-out sutures,9,10 bioabsorbable nails,11 Herbert screws,12 TightRope fixation (Arthrex),13 and various other rotator cuff and meniscal repair systems.14,15 These approaches tend to have good outcomes for TEA fractures, but there are risks associated with ACL tensioning and potential tibial growth plate violation or hardware problems. Likewise, there are no studies with large numbers of patients treated with these new techniques, so the optimal method of reduction and fixation is still unknown.
In this article, we describe a new ARIF technique that involves 2 absorbable anchors with adjustable suture-tensioning technology. This technique optimizes reduction and helps surgeons avoid proximal tibial physeal damage, procedure-related morbidity, and additional surgery.
Case Report
History
The patient, an 8-year-old boy, sustained a noncontact twisting injury of the left knee during a cutting maneuver in a flag football game. He experienced immediate pain and subsequent swelling. Clinical examination revealed a moderate effusion with motion limitations secondary to swelling and irritability. The patient’s Lachman test result was 2+. Pivot shift testing was not possible because of guarding. The knee was stable to varus and valgus stress at 0° and 30° of flexion. Limited knee flexion prohibited placement of the patient in the position needed for anterior and posterior drawer testing. His patella was stable on lateral stress testing at 20° of flexion with no apprehension. Neurovascular status was intact throughout the lower extremity.
Anteroposterior and lateral radiographs showed a minimally displaced Meyers-McKeever type II TEA fracture (Figures 1A, 1B).
After discussing potential treatment options with the parents, Dr. Smith proceeded with arthroscopic surgery for definitive reduction and internal fixation of the patient’s left knee displaced ACL-TEA fracture. The new adjustable suture-tensioning fixation technique was used. The patient’s guardian provided written informed consent for print and electronic publication of this case report.
Examination Under Anesthesia
Examination with the patient under general anesthesia revealed 3+ Lachman, 2+ pivot shift with foot in internal and external rotation, and 1+ anterior drawer with foot in neutral and internal rotation. The knee was stable to varus and valgus stress testing.
Surgical Technique
Proper patient positioning and padding of bony prominences were ensured, and the limb was sterilely prepared and draped.
Given the young age of the patient, it was imperative to avoid the open proximal tibial growth plate. The surgical plan for stabilization involved use of two 3.0-mm BioComposite Knotless SutureTak anchors (Arthrex). This anchor configuration is based on a No. 2 FiberWire suture shuttled through itself to create a locking splice mechanism that allows for adjustable tensioning. The anchors were placed on each side of the tibial bony avulsion site with two No. 2 FiberWire sutures and were then crossed about the avulsion fracture fragment in an “x-type” configuration to secure the ACL back down to the bony bed.
First, a curette was used to débride fibrous tissue on the underside of the fracture fragment and on the fracture bed. Minimal amounts of cancellous bone were débrided from the tibial fracture bed to optimize fracture reduction by slightly recessing the fracture fragment to ensure optimal ACL tensioning (Figure 5).
Next, from the accessory superior medial portal, the end of the wire that had been passed through the medial aspect of the bony avulsion was retrieved through the lateral portal. This wire was used to shuttle the repair suture from the laterally positioned SutureTak anchor over and through the medial aspect of the bony fragment out of the accessory superior medial (Figure 7).
Follow-Up
Two weeks after surgery, the patient returned to clinic for suture removal. Four weeks after surgery, radiographs confirmed anatomical reduction of the TEA fracture, and outpatient physical therapy (range-of-motion exercises as tolerated) and isometric quadriceps strengthening were instituted. Twelve weeks after surgery, examination revealed full knee motion, negative Lachman and pivot shift test results, and residual quadriceps muscle atrophy, and radiographs confirmed complete fracture healing with maintenance of a normal proximal tibial growth plate (Figures 10A, 10B).
Discussion
The highlight of this case is the simplicity of an excellent reduction of a displaced ACL-TEA fracture. Minimally invasive absorbable implants did not violate the proximal tibial physis, and the unique adjustable suture-tensioning technology allowed the degree of reduction and ACL tension to be “dialed in.” SutureTak implants have strong No. 2 FiberWire suture for excellent stability with an overall small suture load, and their small size avoids the risk of violating the proximal tibial physis and avoids potential growth disturbances.
Despite the obvious risks it poses to the open proximal tibial physis, surgical reduction of Meyers-McKeever type II and type III fractures is the norm for restoring ACL stability. Screws and suture fixation are the most common and reliable methods of TEA fracture reduction.16,17 In recent systematic reviews, however, Osti and colleagues17 and Gans and colleagues18 noted there is not enough evidence to warrant a “gold standard” in pediatric tibial avulsion cases.
Other fixation methods for TEA fractures must be investigated. Anderson and colleagues19 described the biomechanics of 4 different physeal-sparing avulsion fracture reduction techniques: an ultra-high-molecular-weight polyethylene (UHMWPE) suture-suture button, a suture anchor, a polydioxanone suture-suture button, and screw fixation. Using techniques described by Kocher and colleagues,4 Berg,20 Mah and colleagues,21 Vega and colleagues,22 and Lu and colleagues,23 Anderson and colleagues19 reduced TEA fractures in skeletally immature porcine knees. Compared with suture anchors, UHMWPE suture-suture buttons provided biomechanically superior cyclic and load-to-failure results as well as more consistent fixation.
Screw fixation has shown good results but has disadvantages. Incorrect positioning of a screw can lead to impingement and articular cartilage damage, and screw removal may be needed if discomfort at the fixation site persists.24,25 Likewise, screws generally are an option only for large fracture fragments, as there is an inherent risk of fracturing small TEA fractures, which can be common in skeletally immature patients.
Brunner and colleagues26 recently found that TEA fracture repair with absorbable sutures and distal bone bridge fixation yielded 3-month radiographic and clinical healing rates similar to those obtained with nonabsorbable sutures tied around a screw. However, other authors have reported growth disturbances with use of a similar technique, owing to a disturbance of the open proximal tibial growth plate.9 In that regard, a major advantage of this new knotless suturing technique is that distal fixation is not necessary.
The minimally invasive TEA fraction reduction technique described in this article has 6 advantages: It provides excellent fixation while avoiding proximal tibial growth plate injury; the degree of tensioning is easily controlled during reduction; it uses strong suture instead of metal screws or pins; the reduction construct is low-profile; distal fixation is unnecessary; and implant removal is unnecessary, thus limiting subsequent surgical intervention. With respect to long-term outcomes, however, it is not known how this procedure will compare with other commonly used ARIF methods in physeal-sparing techniques for TEA fracture fixation.
This case report highlights a novel pediatric displaced ACL-TEA fracture reduction technique that allows for adjustable reduction and resultant ACL tensioning with excellent strong suture fixation without violating the proximal tibial physis, which could make it invaluable in the surgical treatment of this injury in skeletally immature patients.
Am J Orthop. 2017;46(4):203-208. Copyright Frontline Medical Communications Inc. 2017. All rights reserved.
Take-Home Points
- Technique provides optimal fixation while simultaneously protecting open growth plates.
- Self tensioning feature insures both optimal ACL tension and fracture reduction.
- No need for future hardware removal.
- 10Cross suture configuration optimizes strength of fixation for highly consistent results.
- Use fluoroscopy to avoid violation of tibial physis.
Generally occurring in the 8- to 14-year-old population, tibial eminence avulsion (TEA) fractures are a common variant of anterior cruciate ligament (ACL) ruptures and represent 2% to 5% of all knee injuries in skeletally immature individuals.1,2 Compared with adults, children likely experience this anomaly more often because of the weakness of their incompletely ossified tibial plateau relative to the strength of their native ACL.3
The open repair techniques that have been described have multiple disadvantages, including open incisions, difficult visualization of the fracture owing to the location of the fat pad, and increased risk for arthrofibrosis. Arthroscopic fixation is considered the treatment of choice for TEA fractures because it allows for direct visualization of injury, accurate reduction of fracture fragments, removal of loose fragments, and easy treatment of associated soft-tissue injuries.4-6Several fixation techniques for ACL-TEA fractures were recently described: arthroscopic reduction and internal fixation (ARIF) with Kirschner wires,7 cannulated screws,4 the Meniscus Arrow device (Bionx Implants),8 pull-out sutures,9,10 bioabsorbable nails,11 Herbert screws,12 TightRope fixation (Arthrex),13 and various other rotator cuff and meniscal repair systems.14,15 These approaches tend to have good outcomes for TEA fractures, but there are risks associated with ACL tensioning and potential tibial growth plate violation or hardware problems. Likewise, there are no studies with large numbers of patients treated with these new techniques, so the optimal method of reduction and fixation is still unknown.
In this article, we describe a new ARIF technique that involves 2 absorbable anchors with adjustable suture-tensioning technology. This technique optimizes reduction and helps surgeons avoid proximal tibial physeal damage, procedure-related morbidity, and additional surgery.
Case Report
History
The patient, an 8-year-old boy, sustained a noncontact twisting injury of the left knee during a cutting maneuver in a flag football game. He experienced immediate pain and subsequent swelling. Clinical examination revealed a moderate effusion with motion limitations secondary to swelling and irritability. The patient’s Lachman test result was 2+. Pivot shift testing was not possible because of guarding. The knee was stable to varus and valgus stress at 0° and 30° of flexion. Limited knee flexion prohibited placement of the patient in the position needed for anterior and posterior drawer testing. His patella was stable on lateral stress testing at 20° of flexion with no apprehension. Neurovascular status was intact throughout the lower extremity.
Anteroposterior and lateral radiographs showed a minimally displaced Meyers-McKeever type II TEA fracture (Figures 1A, 1B).
After discussing potential treatment options with the parents, Dr. Smith proceeded with arthroscopic surgery for definitive reduction and internal fixation of the patient’s left knee displaced ACL-TEA fracture. The new adjustable suture-tensioning fixation technique was used. The patient’s guardian provided written informed consent for print and electronic publication of this case report.
Examination Under Anesthesia
Examination with the patient under general anesthesia revealed 3+ Lachman, 2+ pivot shift with foot in internal and external rotation, and 1+ anterior drawer with foot in neutral and internal rotation. The knee was stable to varus and valgus stress testing.
Surgical Technique
Proper patient positioning and padding of bony prominences were ensured, and the limb was sterilely prepared and draped.
Given the young age of the patient, it was imperative to avoid the open proximal tibial growth plate. The surgical plan for stabilization involved use of two 3.0-mm BioComposite Knotless SutureTak anchors (Arthrex). This anchor configuration is based on a No. 2 FiberWire suture shuttled through itself to create a locking splice mechanism that allows for adjustable tensioning. The anchors were placed on each side of the tibial bony avulsion site with two No. 2 FiberWire sutures and were then crossed about the avulsion fracture fragment in an “x-type” configuration to secure the ACL back down to the bony bed.
First, a curette was used to débride fibrous tissue on the underside of the fracture fragment and on the fracture bed. Minimal amounts of cancellous bone were débrided from the tibial fracture bed to optimize fracture reduction by slightly recessing the fracture fragment to ensure optimal ACL tensioning (Figure 5).
Next, from the accessory superior medial portal, the end of the wire that had been passed through the medial aspect of the bony avulsion was retrieved through the lateral portal. This wire was used to shuttle the repair suture from the laterally positioned SutureTak anchor over and through the medial aspect of the bony fragment out of the accessory superior medial (Figure 7).
Follow-Up
Two weeks after surgery, the patient returned to clinic for suture removal. Four weeks after surgery, radiographs confirmed anatomical reduction of the TEA fracture, and outpatient physical therapy (range-of-motion exercises as tolerated) and isometric quadriceps strengthening were instituted. Twelve weeks after surgery, examination revealed full knee motion, negative Lachman and pivot shift test results, and residual quadriceps muscle atrophy, and radiographs confirmed complete fracture healing with maintenance of a normal proximal tibial growth plate (Figures 10A, 10B).
Discussion
The highlight of this case is the simplicity of an excellent reduction of a displaced ACL-TEA fracture. Minimally invasive absorbable implants did not violate the proximal tibial physis, and the unique adjustable suture-tensioning technology allowed the degree of reduction and ACL tension to be “dialed in.” SutureTak implants have strong No. 2 FiberWire suture for excellent stability with an overall small suture load, and their small size avoids the risk of violating the proximal tibial physis and avoids potential growth disturbances.
Despite the obvious risks it poses to the open proximal tibial physis, surgical reduction of Meyers-McKeever type II and type III fractures is the norm for restoring ACL stability. Screws and suture fixation are the most common and reliable methods of TEA fracture reduction.16,17 In recent systematic reviews, however, Osti and colleagues17 and Gans and colleagues18 noted there is not enough evidence to warrant a “gold standard” in pediatric tibial avulsion cases.
Other fixation methods for TEA fractures must be investigated. Anderson and colleagues19 described the biomechanics of 4 different physeal-sparing avulsion fracture reduction techniques: an ultra-high-molecular-weight polyethylene (UHMWPE) suture-suture button, a suture anchor, a polydioxanone suture-suture button, and screw fixation. Using techniques described by Kocher and colleagues,4 Berg,20 Mah and colleagues,21 Vega and colleagues,22 and Lu and colleagues,23 Anderson and colleagues19 reduced TEA fractures in skeletally immature porcine knees. Compared with suture anchors, UHMWPE suture-suture buttons provided biomechanically superior cyclic and load-to-failure results as well as more consistent fixation.
Screw fixation has shown good results but has disadvantages. Incorrect positioning of a screw can lead to impingement and articular cartilage damage, and screw removal may be needed if discomfort at the fixation site persists.24,25 Likewise, screws generally are an option only for large fracture fragments, as there is an inherent risk of fracturing small TEA fractures, which can be common in skeletally immature patients.
Brunner and colleagues26 recently found that TEA fracture repair with absorbable sutures and distal bone bridge fixation yielded 3-month radiographic and clinical healing rates similar to those obtained with nonabsorbable sutures tied around a screw. However, other authors have reported growth disturbances with use of a similar technique, owing to a disturbance of the open proximal tibial growth plate.9 In that regard, a major advantage of this new knotless suturing technique is that distal fixation is not necessary.
The minimally invasive TEA fraction reduction technique described in this article has 6 advantages: It provides excellent fixation while avoiding proximal tibial growth plate injury; the degree of tensioning is easily controlled during reduction; it uses strong suture instead of metal screws or pins; the reduction construct is low-profile; distal fixation is unnecessary; and implant removal is unnecessary, thus limiting subsequent surgical intervention. With respect to long-term outcomes, however, it is not known how this procedure will compare with other commonly used ARIF methods in physeal-sparing techniques for TEA fracture fixation.
This case report highlights a novel pediatric displaced ACL-TEA fracture reduction technique that allows for adjustable reduction and resultant ACL tensioning with excellent strong suture fixation without violating the proximal tibial physis, which could make it invaluable in the surgical treatment of this injury in skeletally immature patients.
Am J Orthop. 2017;46(4):203-208. Copyright Frontline Medical Communications Inc. 2017. All rights reserved.
1. Eiskjaer S, Larsen ST, Schmidt MB. The significance of hemarthrosis of the knee in children. Arch Orthop Trauma Surg. 1988;107(2):96-98.
2. Luhmann SJ. Acute traumatic knee effusions in children and adolescents. J Pediatr Orthop. 2003;23(2):199-202.
3. Woo SL, Hollis JM, Adams DJ, Lyon RM, Takai S. Tensile properties of the human femur-anterior cruciate ligament-tibia complex. The effects of specimen age and orientation. Am J Sports Med. 1991;19(3):217-225.
4. Kocher MS, Foreman ES, Micheli LJ. Laxity and functional outcome after arthroscopic reduction and internal fixation of displaced tibial spine fractures in children. Arthroscopy. 2003;19(10):1085-1090.
5. Lubowitz JH, Elson WS, Guttmann D. Part II: arthroscopic treatment of tibial plateau fractures: intercondylar eminence avulsion fractures. Arthroscopy. 2005;21(1):86-92.
6. Vargas B, Lutz N, Dutoit M, Zambelli PY. Nonunion after fracture of the anterior tibial spine: case report and review of the literature. J Pediatr Orthop B. 2009;18(2):90-92.
7. Sommerfeldt DW. Arthroscopically assisted internal fixation of avulsion fractures of the anterior cruciate ligament during childhood and adolescence [in German]. Oper Orthop Traumatol. 2008;20(4-5):310-320.
8. Wouters DB, de Graaf JS, Hemmer PH, Burgerhof JG, Kramer WL. The arthroscopic treatment of displaced tibial spine fractures in children and adolescents using Meniscus Arrows®. Knee Surg Sports Traumatol Arthrosc. 2011;19(5):736-739.
9. Ahn JH, Yoo JC. Clinical outcome of arthroscopic reduction and suture for displaced acute and chronic tibial spine fractures. Knee Surg Sports Traumatol Arthrosc. 2005;13(2):116-121.
10. Huang TW, Hsu KY, Cheng CY, et al. Arthroscopic suture fixation of tibial eminence avulsion fractures. Arthroscopy. 2008;24(11):1232-1238.
11. Liljeros K, Werner S, Janarv PM. Arthroscopic fixation of anterior tibial spine fractures with bioabsorbable nails in skeletally immature patients. Am J Sports Med. 2009;37(5):923-928.
12. Wiegand N, Naumov I, Vamhidy L, Not LG. Arthroscopic treatment of tibial spine fracture in children with a cannulated Herbert screw. Knee. 2014;21(2):481-485.
13. Faivre B, Benea H, Klouche S, Lespagnol F, Bauer T, Hardy P. An original arthroscopic fixation of adult’s tibial eminence fractures using the Tightrope® device: a report of 8 cases and review of literature. Knee. 2014;21(4):833-839.
14. Kluemper CT, Snyder GM, Coats AC, Johnson DL, Mair SD. Arthroscopic suture fixation of tibial eminence fractures. Orthopedics. 2013;36(11):e1401-e1406.
15. Ochiai S, Hagino T, Watanabe Y, Senga S, Haro H. One strategy for arthroscopic suture fixation of tibial intercondylar eminence fractures using the Meniscal Viper Repair System. Sports Med Arthrosc Rehabil Ther Technol. 2011;3:17.
16. Bogunovic L, Tarabichi M, Harris D, Wright R. Treatment of tibial eminence fractures: a systematic review. J Knee Surg. 2015;28(3):255-262.
17. Osti L, Buda M, Soldati F, Del Buono A, Osti R, Maffulli N. Arthroscopic treatment of tibial eminence fracture: a systematic review of different fixation methods. Br Med Bull. 2016;118(1):73-90.
18. Gans I, Baldwin KD, Ganley TJ. Treatment and management outcomes of tibial eminence fractures in pediatric patients: a systematic review. Am J Sports Med. 2014;42(7):1743-1750.
19. Anderson CN, Nyman JS, McCullough KA, et al. Biomechanical evaluation of physeal-sparing fixation methods in tibial eminence fractures. Am J Sports Med. 2013;41(7):1586-1594.
20. Berg EE. Pediatric tibial eminence fractures: arthroscopic cannulated screw fixation. Arthroscopy. 1995;11(3):328-331.
21. Mah JY, Otsuka NY, McLean J. An arthroscopic technique for the reduction and fixation of tibial-eminence fractures. J Pediatr Orthop. 1996;16(1):119-121.
22. Vega JR, Irribarra LA, Baar AK, Iniguez M, Salgado M, Gana N. Arthroscopic fixation of displaced tibial eminence fractures: a new growth plate-sparing method. Arthroscopy. 2008;24(11):1239-1243.
23. Lu XW, Hu XP, Jin C, Zhu T, Ding Y, Dai LY. Reduction and fixation of the avulsion fracture of the tibial eminence using mini-open technique. Knee Surg Sports Traumatol Arthrosc. 2010;18(11):1476-1480.
24. Bonin N, Jeunet L, Obert L, Dejour D. Adult tibial eminence fracture fixation: arthroscopic procedure using K-wire folded fixation. Knee Surg Sports Traumatol Arthrosc. 2007;15(7):857-862.
25. Senekovic V, Veselko M. Anterograde arthroscopic fixation of avulsion fractures of the tibial eminence with a cannulated screw: five-year results. Arthroscopy. 2003;19(1):54-61.
26. Brunner S, Vavken P, Kilger R, et al. Absorbable and non-absorbable suture fixation results in similar outcomes for tibial eminence fractures in children and adolescents. Knee Surg Sports Traumatol Arthrosc. 2016;24(3):723-729.
1. Eiskjaer S, Larsen ST, Schmidt MB. The significance of hemarthrosis of the knee in children. Arch Orthop Trauma Surg. 1988;107(2):96-98.
2. Luhmann SJ. Acute traumatic knee effusions in children and adolescents. J Pediatr Orthop. 2003;23(2):199-202.
3. Woo SL, Hollis JM, Adams DJ, Lyon RM, Takai S. Tensile properties of the human femur-anterior cruciate ligament-tibia complex. The effects of specimen age and orientation. Am J Sports Med. 1991;19(3):217-225.
4. Kocher MS, Foreman ES, Micheli LJ. Laxity and functional outcome after arthroscopic reduction and internal fixation of displaced tibial spine fractures in children. Arthroscopy. 2003;19(10):1085-1090.
5. Lubowitz JH, Elson WS, Guttmann D. Part II: arthroscopic treatment of tibial plateau fractures: intercondylar eminence avulsion fractures. Arthroscopy. 2005;21(1):86-92.
6. Vargas B, Lutz N, Dutoit M, Zambelli PY. Nonunion after fracture of the anterior tibial spine: case report and review of the literature. J Pediatr Orthop B. 2009;18(2):90-92.
7. Sommerfeldt DW. Arthroscopically assisted internal fixation of avulsion fractures of the anterior cruciate ligament during childhood and adolescence [in German]. Oper Orthop Traumatol. 2008;20(4-5):310-320.
8. Wouters DB, de Graaf JS, Hemmer PH, Burgerhof JG, Kramer WL. The arthroscopic treatment of displaced tibial spine fractures in children and adolescents using Meniscus Arrows®. Knee Surg Sports Traumatol Arthrosc. 2011;19(5):736-739.
9. Ahn JH, Yoo JC. Clinical outcome of arthroscopic reduction and suture for displaced acute and chronic tibial spine fractures. Knee Surg Sports Traumatol Arthrosc. 2005;13(2):116-121.
10. Huang TW, Hsu KY, Cheng CY, et al. Arthroscopic suture fixation of tibial eminence avulsion fractures. Arthroscopy. 2008;24(11):1232-1238.
11. Liljeros K, Werner S, Janarv PM. Arthroscopic fixation of anterior tibial spine fractures with bioabsorbable nails in skeletally immature patients. Am J Sports Med. 2009;37(5):923-928.
12. Wiegand N, Naumov I, Vamhidy L, Not LG. Arthroscopic treatment of tibial spine fracture in children with a cannulated Herbert screw. Knee. 2014;21(2):481-485.
13. Faivre B, Benea H, Klouche S, Lespagnol F, Bauer T, Hardy P. An original arthroscopic fixation of adult’s tibial eminence fractures using the Tightrope® device: a report of 8 cases and review of literature. Knee. 2014;21(4):833-839.
14. Kluemper CT, Snyder GM, Coats AC, Johnson DL, Mair SD. Arthroscopic suture fixation of tibial eminence fractures. Orthopedics. 2013;36(11):e1401-e1406.
15. Ochiai S, Hagino T, Watanabe Y, Senga S, Haro H. One strategy for arthroscopic suture fixation of tibial intercondylar eminence fractures using the Meniscal Viper Repair System. Sports Med Arthrosc Rehabil Ther Technol. 2011;3:17.
16. Bogunovic L, Tarabichi M, Harris D, Wright R. Treatment of tibial eminence fractures: a systematic review. J Knee Surg. 2015;28(3):255-262.
17. Osti L, Buda M, Soldati F, Del Buono A, Osti R, Maffulli N. Arthroscopic treatment of tibial eminence fracture: a systematic review of different fixation methods. Br Med Bull. 2016;118(1):73-90.
18. Gans I, Baldwin KD, Ganley TJ. Treatment and management outcomes of tibial eminence fractures in pediatric patients: a systematic review. Am J Sports Med. 2014;42(7):1743-1750.
19. Anderson CN, Nyman JS, McCullough KA, et al. Biomechanical evaluation of physeal-sparing fixation methods in tibial eminence fractures. Am J Sports Med. 2013;41(7):1586-1594.
20. Berg EE. Pediatric tibial eminence fractures: arthroscopic cannulated screw fixation. Arthroscopy. 1995;11(3):328-331.
21. Mah JY, Otsuka NY, McLean J. An arthroscopic technique for the reduction and fixation of tibial-eminence fractures. J Pediatr Orthop. 1996;16(1):119-121.
22. Vega JR, Irribarra LA, Baar AK, Iniguez M, Salgado M, Gana N. Arthroscopic fixation of displaced tibial eminence fractures: a new growth plate-sparing method. Arthroscopy. 2008;24(11):1239-1243.
23. Lu XW, Hu XP, Jin C, Zhu T, Ding Y, Dai LY. Reduction and fixation of the avulsion fracture of the tibial eminence using mini-open technique. Knee Surg Sports Traumatol Arthrosc. 2010;18(11):1476-1480.
24. Bonin N, Jeunet L, Obert L, Dejour D. Adult tibial eminence fracture fixation: arthroscopic procedure using K-wire folded fixation. Knee Surg Sports Traumatol Arthrosc. 2007;15(7):857-862.
25. Senekovic V, Veselko M. Anterograde arthroscopic fixation of avulsion fractures of the tibial eminence with a cannulated screw: five-year results. Arthroscopy. 2003;19(1):54-61.
26. Brunner S, Vavken P, Kilger R, et al. Absorbable and non-absorbable suture fixation results in similar outcomes for tibial eminence fractures in children and adolescents. Knee Surg Sports Traumatol Arthrosc. 2016;24(3):723-729.
A New Option for Glenoid Reconstruction in Recurrent Anterior Shoulder Instability
Take-Home Points
- Repair anterior bone defect on the glenoid related to recurrent anterior instability with preshaped, predrilled allograft.
- Avoid graft harvest complications related to coracoid (Latarjet) or iliac crest autograft.
- Simple guide system to allow for appropriate graft and screw placement.
- Soft tissues can be repaired to the allograft in predrilled suture holes either inside or outside of the graft
- Position the graft without step at the anterior glenoid.
Anteroinferior glenoid bone loss plays a significant role in recurrent glenohumeral instability. Arthroscopic capsulolabral reconstruction has been associated with a recurrence rate of 4% in the absence of significant glenoid bone loss but 67% in patients with either bone loss of more than 25% of the inferior glenoid diameter or an engaging Hill-Sachs lesion.1,2 Anteroinferior glenoid rim deficiency has been reported in up to 90% of cases of recurrent instability.3 Glenoid reconstruction is therefore recommended in patients with bone loss of more than 25% and in certain revision cases.4 Surgical strategies in these cases include coracoid transfer, iliac crest autograft, and allograft (osteochondral and iliac crest). These procedures all successfully restore stability of the glenohumeral joint. However, they carry the drawbacks of technical complexity with increased operative time or risk of neurovascular damage, or they create a nonanatomical reconstruction, which may contribute to subsequent instability arthropathy. In this article, we introduce a technique in which a preshaped allograft (Glenojet; Arthrosurface, Inc.) is used to match the contour of the glenoid defect. The graft is simple to insert and can reduce operative time.
Graft Preparation
The shaped human tissue cortical bone allograft is usually prepared from proximal or distal tibia or femur. There is no cartilage on the graft. It can be ordered in 2 sizes, 10 mm × 29 mm and 13 mm × 34 mm, for different amounts of bone loss. The more commonly used smaller graft reconstructs defects of 20% to 30% of the glenoid.
The sutures through this allograft can be prepared on the back table while the rest of the equipment is set up. Start by tying a No. 2 FiberWire (or equivalent) over a small thin object, such as a Freer elevator. Once the knot is secure, remove the Freer and trim the knot tails short. Thread another suture through the loop that has been created and pull to make the 2 tails even. Then thread these tails through one of the small holes of the graft, going from the flat side to the concave side. Pull the suture tails all the way through, including through the loop of the prior suture. The knot of the loop prevents the entire construct from pulling through. The suture tails are then able to slide as if attached to an anchor. Repeat these steps for the other 2 small holes to get a total of 3 sutures exiting the concave side of the graft (Figure 1). Alternatively, pass the suture the opposite way, if tying the capsule inside the graft is preferred.
Surgical Technique
A standard deltopectoral approach is used to expose the anterior glenoid. The subscapularis can either be split in line with its fibers or tenotomized with 1 cm to 2 cm attached to the tuberosity for later repair. In either instance, it is important to separate the muscle from the underlying capsule layer, as the capsule is what is directly repaired to the graft.
The capsule is carefully peeled off the anterior glenoid. A Fukuda or similar retractor may be used on the humerus, and a glenoid retractor is placed on the anterior glenoid, under the capsule and subscapularis, for optimal exposure. Once the anterior glenoid surface is exposed, the drill guide is placed flush against the surface of the glenoid.
The guide is removed. The cannulated reamer is introduced and advanced until the guide pin appears in the viewing window of the reamer and hits the stop—approximating the correct amount of bone to remove. This step is repeated for the second guide pin. Reaming flattens the anterior glenoid and allows for maximal stable apposition of the graft to the glenoid. The allograft is then inserted onto the pins in the correct orientation to match the surface of the native glenoid.
The length of the superior guide pin is measured with the depth gauge device. It is then removed, and the appropriate-length 3.5-mm cortical bone screw is inserted (alternatively, the guide pin is removed, and a standard depth gauge is used to measure screw length). Once the superior guide pin is secure, the process is repeated for the inferior guide pin (Figure 3).
Once the graft is secure, the capsule is attached to the graft with the use of a free needle on the suture of the graft (Figure 4).
Outcomes
Coracoid bone transfer or the Bristow-Latarjet technique has become more popular since bone loss was recognized as an important cause of failure of soft-tissue repair for anterior instability. This procedure, however, is not without complications. In a recent systematic review of 45 studies (1904 shoulders), Griesser and colleagues5 found an overall complication rate of 30% and a reoperation rate of 7%.
Given the potential complications of coracoid bone transfer, allograft reconstruction of the anteroinferior glenoid has become increasingly popular and proved successful at short- and medium-term follow-up. Allograft reconstruction avoids the drawbacks of traditional coracoid bone transfer—namely, high rates of neurovascular injury, and nonanatomical reconstruction with high rates of graft resorption and arthritis.5,6 At average 45-month follow-up after fresh distal tibia allograft reconstruction, Provencher and colleagues7 found an 89% radiographic union rate (average lysis, 3%), significantly improved patient-reported outcomes, and no recurrent instability. Similarly, in a study of iliac crest allograft reconstruction in 10 patients with an average 4-year follow-up, Mascarenhas and colleagues8 found an 80% radiographic union rate at 6 months, significantly improved patient-reported outcomes, and no recurrent shoulder instability.
The advantage of Glenojet over other allografts is that it is preshaped and predrilled and saves the surgeon the time and effort of preparing graft in the operating room. The surgical technologist can place the sutures before the patient enters the room. The 2 allograft sizes (10 mm × 29 mm, 13 mm × 34 mm) accommodate the spectrum of bone loss in glenoid deficiency, and graft contour fits the native glenoid well. So far we have implanted this allograft in 15 patients, and at short-term follow-up there are no known cases of recurrent instability.
The potential disadvantages of Glenojet are similar to those of other allografts. Care must be taken with retractor placement to avoid damaging the axillary and musculocutaneous nerves. There are concerns about graft union and subsequent resorption, but this will require long-term follow-up to determine. At 9-month follow-up, we had 1 fracture at the superior corner of the graft, which may have resulted from overtightening the screws in the graft, creating a stress concentration. After removal of this fragment arthroscopically, the patient has done very well clinically with no pain, instability and has returned to all activities. Although the graft does not have an articular surface, the capsular repair covers much of the articular side of the graft, and therefore we do not anticipate that the absence of articular cartilage will contribute to glenohumeral arthritis, though long-term follow-up is lacking. The other question many have is related to the lack of the sling effect since there is no conjoined tendon on the graft. Yamamoto and colleagues9 have reported that the conjoined tendon is the major stabilizing force at time zero in a cadaver model. However, other authors7,8 have successfully reconstructed glenoid defects in these difficult cases without the “sling effect” of the conjoined tendon with excellent clinical results. Our experience has been similar. It is likely that long-term studies will be necessary to answer this question. We have also done some cases with the tendon attached after releasing it from the coracoid, but the series is too small to make any comment about whether this is important or not.
The main limitation of this allograft technique is the lack of long-term outcome studies. However, short-term results are promising, and the ease of the procedure makes it an attractive option for either glenoid reconstruction of bony Bankart lesions or failed bone reconstruction, such as Bristow-Latarjet reconstruction.
Glenojetallograft is a new glenoid reconstruction option that is technically easy and simple to perform in cases of glenoid bone loss, while still creating an anatomical buttress with less surgical dissection than traditional coracoid bone transfer. Short-term outcomes are reassuring, though more research is needed for long-term graft follow-up and recurrent instability.
Am J Orthop. 2017;46(4):199-202. Copyright Frontline Medical Communications Inc. 2017. All rights reserved.
1. Burkhart SS, De Beer JF. Traumatic glenohumeral bone defects and their relationship to failure of arthroscopic Bankart repairs: significance of the inverted-pear glenoid and the humeral engaging Hill-Sachs lesion. Arthroscopy. 2000;16(7):677-694.
2. Rowe CR, Sakellarides HT. Factors related to recurrences of anterior dislocations of the shoulder. Clin Orthop. 1961;(20):40-48.
3. Piasecki DP, Verma NN, Romeo AA, Levine WN, Bach BR Jr, Provencher MT. Glenoid bone deficiency in recurrent anterior shoulder instability: diagnosis and management. J Am Acad Orthop Surg. 2009;17(8):482-493.
4. Sayegh ET, Mascarenhas R, Chalmers PN, Cole BJ, Verma NN, Romeo AA. Allograft reconstruction for glenoid bone loss in glenohumeral instability: a systematic review. Arthroscopy. 2014;30(12):1642-1649.
5. Griesser MJ, Harris JD, McCoy BW, et al. Complications and re-operati ons after Bristow-Latarjet shoulder stabilization: a systematic review. J Shoulder Elbow Surg. 2013;22(2):286-292.
6. Young DC, Rockwood CA Jr. Complications of a failed Bristow procedure and their management. J Bone Joint Surg Am. 1991;73(7):969-981.
7. Provencher MT, Frank RM, Golijanin P, et al. Distal tibia allograft glenoid reconstruction in recurrent anterior shoulder instability: clinical and radiographic outcomes. Arthroscopy. 2017;33(5):891-897.
8. Mascarenhas R, Raleigh E, McRae S, Leiter J, Saltzman B, MacDonald PB. Iliac crest allograft glenoid reconstruction for recurrent anterior shoulder instability in athletes: surgical technique and results. Int J Shoulder Surg. 2014;8(4):127-132.
9. Yamamoto N, Muraki T, An KN, et al. The stabilizing mechanism of the Latarjet procedure: a cadaveric study. J Bone Joint Surg Am. 2013;95(15):1390-1397.
Take-Home Points
- Repair anterior bone defect on the glenoid related to recurrent anterior instability with preshaped, predrilled allograft.
- Avoid graft harvest complications related to coracoid (Latarjet) or iliac crest autograft.
- Simple guide system to allow for appropriate graft and screw placement.
- Soft tissues can be repaired to the allograft in predrilled suture holes either inside or outside of the graft
- Position the graft without step at the anterior glenoid.
Anteroinferior glenoid bone loss plays a significant role in recurrent glenohumeral instability. Arthroscopic capsulolabral reconstruction has been associated with a recurrence rate of 4% in the absence of significant glenoid bone loss but 67% in patients with either bone loss of more than 25% of the inferior glenoid diameter or an engaging Hill-Sachs lesion.1,2 Anteroinferior glenoid rim deficiency has been reported in up to 90% of cases of recurrent instability.3 Glenoid reconstruction is therefore recommended in patients with bone loss of more than 25% and in certain revision cases.4 Surgical strategies in these cases include coracoid transfer, iliac crest autograft, and allograft (osteochondral and iliac crest). These procedures all successfully restore stability of the glenohumeral joint. However, they carry the drawbacks of technical complexity with increased operative time or risk of neurovascular damage, or they create a nonanatomical reconstruction, which may contribute to subsequent instability arthropathy. In this article, we introduce a technique in which a preshaped allograft (Glenojet; Arthrosurface, Inc.) is used to match the contour of the glenoid defect. The graft is simple to insert and can reduce operative time.
Graft Preparation
The shaped human tissue cortical bone allograft is usually prepared from proximal or distal tibia or femur. There is no cartilage on the graft. It can be ordered in 2 sizes, 10 mm × 29 mm and 13 mm × 34 mm, for different amounts of bone loss. The more commonly used smaller graft reconstructs defects of 20% to 30% of the glenoid.
The sutures through this allograft can be prepared on the back table while the rest of the equipment is set up. Start by tying a No. 2 FiberWire (or equivalent) over a small thin object, such as a Freer elevator. Once the knot is secure, remove the Freer and trim the knot tails short. Thread another suture through the loop that has been created and pull to make the 2 tails even. Then thread these tails through one of the small holes of the graft, going from the flat side to the concave side. Pull the suture tails all the way through, including through the loop of the prior suture. The knot of the loop prevents the entire construct from pulling through. The suture tails are then able to slide as if attached to an anchor. Repeat these steps for the other 2 small holes to get a total of 3 sutures exiting the concave side of the graft (Figure 1). Alternatively, pass the suture the opposite way, if tying the capsule inside the graft is preferred.
Surgical Technique
A standard deltopectoral approach is used to expose the anterior glenoid. The subscapularis can either be split in line with its fibers or tenotomized with 1 cm to 2 cm attached to the tuberosity for later repair. In either instance, it is important to separate the muscle from the underlying capsule layer, as the capsule is what is directly repaired to the graft.
The capsule is carefully peeled off the anterior glenoid. A Fukuda or similar retractor may be used on the humerus, and a glenoid retractor is placed on the anterior glenoid, under the capsule and subscapularis, for optimal exposure. Once the anterior glenoid surface is exposed, the drill guide is placed flush against the surface of the glenoid.
The guide is removed. The cannulated reamer is introduced and advanced until the guide pin appears in the viewing window of the reamer and hits the stop—approximating the correct amount of bone to remove. This step is repeated for the second guide pin. Reaming flattens the anterior glenoid and allows for maximal stable apposition of the graft to the glenoid. The allograft is then inserted onto the pins in the correct orientation to match the surface of the native glenoid.
The length of the superior guide pin is measured with the depth gauge device. It is then removed, and the appropriate-length 3.5-mm cortical bone screw is inserted (alternatively, the guide pin is removed, and a standard depth gauge is used to measure screw length). Once the superior guide pin is secure, the process is repeated for the inferior guide pin (Figure 3).
Once the graft is secure, the capsule is attached to the graft with the use of a free needle on the suture of the graft (Figure 4).
Outcomes
Coracoid bone transfer or the Bristow-Latarjet technique has become more popular since bone loss was recognized as an important cause of failure of soft-tissue repair for anterior instability. This procedure, however, is not without complications. In a recent systematic review of 45 studies (1904 shoulders), Griesser and colleagues5 found an overall complication rate of 30% and a reoperation rate of 7%.
Given the potential complications of coracoid bone transfer, allograft reconstruction of the anteroinferior glenoid has become increasingly popular and proved successful at short- and medium-term follow-up. Allograft reconstruction avoids the drawbacks of traditional coracoid bone transfer—namely, high rates of neurovascular injury, and nonanatomical reconstruction with high rates of graft resorption and arthritis.5,6 At average 45-month follow-up after fresh distal tibia allograft reconstruction, Provencher and colleagues7 found an 89% radiographic union rate (average lysis, 3%), significantly improved patient-reported outcomes, and no recurrent instability. Similarly, in a study of iliac crest allograft reconstruction in 10 patients with an average 4-year follow-up, Mascarenhas and colleagues8 found an 80% radiographic union rate at 6 months, significantly improved patient-reported outcomes, and no recurrent shoulder instability.
The advantage of Glenojet over other allografts is that it is preshaped and predrilled and saves the surgeon the time and effort of preparing graft in the operating room. The surgical technologist can place the sutures before the patient enters the room. The 2 allograft sizes (10 mm × 29 mm, 13 mm × 34 mm) accommodate the spectrum of bone loss in glenoid deficiency, and graft contour fits the native glenoid well. So far we have implanted this allograft in 15 patients, and at short-term follow-up there are no known cases of recurrent instability.
The potential disadvantages of Glenojet are similar to those of other allografts. Care must be taken with retractor placement to avoid damaging the axillary and musculocutaneous nerves. There are concerns about graft union and subsequent resorption, but this will require long-term follow-up to determine. At 9-month follow-up, we had 1 fracture at the superior corner of the graft, which may have resulted from overtightening the screws in the graft, creating a stress concentration. After removal of this fragment arthroscopically, the patient has done very well clinically with no pain, instability and has returned to all activities. Although the graft does not have an articular surface, the capsular repair covers much of the articular side of the graft, and therefore we do not anticipate that the absence of articular cartilage will contribute to glenohumeral arthritis, though long-term follow-up is lacking. The other question many have is related to the lack of the sling effect since there is no conjoined tendon on the graft. Yamamoto and colleagues9 have reported that the conjoined tendon is the major stabilizing force at time zero in a cadaver model. However, other authors7,8 have successfully reconstructed glenoid defects in these difficult cases without the “sling effect” of the conjoined tendon with excellent clinical results. Our experience has been similar. It is likely that long-term studies will be necessary to answer this question. We have also done some cases with the tendon attached after releasing it from the coracoid, but the series is too small to make any comment about whether this is important or not.
The main limitation of this allograft technique is the lack of long-term outcome studies. However, short-term results are promising, and the ease of the procedure makes it an attractive option for either glenoid reconstruction of bony Bankart lesions or failed bone reconstruction, such as Bristow-Latarjet reconstruction.
Glenojetallograft is a new glenoid reconstruction option that is technically easy and simple to perform in cases of glenoid bone loss, while still creating an anatomical buttress with less surgical dissection than traditional coracoid bone transfer. Short-term outcomes are reassuring, though more research is needed for long-term graft follow-up and recurrent instability.
Am J Orthop. 2017;46(4):199-202. Copyright Frontline Medical Communications Inc. 2017. All rights reserved.
Take-Home Points
- Repair anterior bone defect on the glenoid related to recurrent anterior instability with preshaped, predrilled allograft.
- Avoid graft harvest complications related to coracoid (Latarjet) or iliac crest autograft.
- Simple guide system to allow for appropriate graft and screw placement.
- Soft tissues can be repaired to the allograft in predrilled suture holes either inside or outside of the graft
- Position the graft without step at the anterior glenoid.
Anteroinferior glenoid bone loss plays a significant role in recurrent glenohumeral instability. Arthroscopic capsulolabral reconstruction has been associated with a recurrence rate of 4% in the absence of significant glenoid bone loss but 67% in patients with either bone loss of more than 25% of the inferior glenoid diameter or an engaging Hill-Sachs lesion.1,2 Anteroinferior glenoid rim deficiency has been reported in up to 90% of cases of recurrent instability.3 Glenoid reconstruction is therefore recommended in patients with bone loss of more than 25% and in certain revision cases.4 Surgical strategies in these cases include coracoid transfer, iliac crest autograft, and allograft (osteochondral and iliac crest). These procedures all successfully restore stability of the glenohumeral joint. However, they carry the drawbacks of technical complexity with increased operative time or risk of neurovascular damage, or they create a nonanatomical reconstruction, which may contribute to subsequent instability arthropathy. In this article, we introduce a technique in which a preshaped allograft (Glenojet; Arthrosurface, Inc.) is used to match the contour of the glenoid defect. The graft is simple to insert and can reduce operative time.
Graft Preparation
The shaped human tissue cortical bone allograft is usually prepared from proximal or distal tibia or femur. There is no cartilage on the graft. It can be ordered in 2 sizes, 10 mm × 29 mm and 13 mm × 34 mm, for different amounts of bone loss. The more commonly used smaller graft reconstructs defects of 20% to 30% of the glenoid.
The sutures through this allograft can be prepared on the back table while the rest of the equipment is set up. Start by tying a No. 2 FiberWire (or equivalent) over a small thin object, such as a Freer elevator. Once the knot is secure, remove the Freer and trim the knot tails short. Thread another suture through the loop that has been created and pull to make the 2 tails even. Then thread these tails through one of the small holes of the graft, going from the flat side to the concave side. Pull the suture tails all the way through, including through the loop of the prior suture. The knot of the loop prevents the entire construct from pulling through. The suture tails are then able to slide as if attached to an anchor. Repeat these steps for the other 2 small holes to get a total of 3 sutures exiting the concave side of the graft (Figure 1). Alternatively, pass the suture the opposite way, if tying the capsule inside the graft is preferred.
Surgical Technique
A standard deltopectoral approach is used to expose the anterior glenoid. The subscapularis can either be split in line with its fibers or tenotomized with 1 cm to 2 cm attached to the tuberosity for later repair. In either instance, it is important to separate the muscle from the underlying capsule layer, as the capsule is what is directly repaired to the graft.
The capsule is carefully peeled off the anterior glenoid. A Fukuda or similar retractor may be used on the humerus, and a glenoid retractor is placed on the anterior glenoid, under the capsule and subscapularis, for optimal exposure. Once the anterior glenoid surface is exposed, the drill guide is placed flush against the surface of the glenoid.
The guide is removed. The cannulated reamer is introduced and advanced until the guide pin appears in the viewing window of the reamer and hits the stop—approximating the correct amount of bone to remove. This step is repeated for the second guide pin. Reaming flattens the anterior glenoid and allows for maximal stable apposition of the graft to the glenoid. The allograft is then inserted onto the pins in the correct orientation to match the surface of the native glenoid.
The length of the superior guide pin is measured with the depth gauge device. It is then removed, and the appropriate-length 3.5-mm cortical bone screw is inserted (alternatively, the guide pin is removed, and a standard depth gauge is used to measure screw length). Once the superior guide pin is secure, the process is repeated for the inferior guide pin (Figure 3).
Once the graft is secure, the capsule is attached to the graft with the use of a free needle on the suture of the graft (Figure 4).
Outcomes
Coracoid bone transfer or the Bristow-Latarjet technique has become more popular since bone loss was recognized as an important cause of failure of soft-tissue repair for anterior instability. This procedure, however, is not without complications. In a recent systematic review of 45 studies (1904 shoulders), Griesser and colleagues5 found an overall complication rate of 30% and a reoperation rate of 7%.
Given the potential complications of coracoid bone transfer, allograft reconstruction of the anteroinferior glenoid has become increasingly popular and proved successful at short- and medium-term follow-up. Allograft reconstruction avoids the drawbacks of traditional coracoid bone transfer—namely, high rates of neurovascular injury, and nonanatomical reconstruction with high rates of graft resorption and arthritis.5,6 At average 45-month follow-up after fresh distal tibia allograft reconstruction, Provencher and colleagues7 found an 89% radiographic union rate (average lysis, 3%), significantly improved patient-reported outcomes, and no recurrent instability. Similarly, in a study of iliac crest allograft reconstruction in 10 patients with an average 4-year follow-up, Mascarenhas and colleagues8 found an 80% radiographic union rate at 6 months, significantly improved patient-reported outcomes, and no recurrent shoulder instability.
The advantage of Glenojet over other allografts is that it is preshaped and predrilled and saves the surgeon the time and effort of preparing graft in the operating room. The surgical technologist can place the sutures before the patient enters the room. The 2 allograft sizes (10 mm × 29 mm, 13 mm × 34 mm) accommodate the spectrum of bone loss in glenoid deficiency, and graft contour fits the native glenoid well. So far we have implanted this allograft in 15 patients, and at short-term follow-up there are no known cases of recurrent instability.
The potential disadvantages of Glenojet are similar to those of other allografts. Care must be taken with retractor placement to avoid damaging the axillary and musculocutaneous nerves. There are concerns about graft union and subsequent resorption, but this will require long-term follow-up to determine. At 9-month follow-up, we had 1 fracture at the superior corner of the graft, which may have resulted from overtightening the screws in the graft, creating a stress concentration. After removal of this fragment arthroscopically, the patient has done very well clinically with no pain, instability and has returned to all activities. Although the graft does not have an articular surface, the capsular repair covers much of the articular side of the graft, and therefore we do not anticipate that the absence of articular cartilage will contribute to glenohumeral arthritis, though long-term follow-up is lacking. The other question many have is related to the lack of the sling effect since there is no conjoined tendon on the graft. Yamamoto and colleagues9 have reported that the conjoined tendon is the major stabilizing force at time zero in a cadaver model. However, other authors7,8 have successfully reconstructed glenoid defects in these difficult cases without the “sling effect” of the conjoined tendon with excellent clinical results. Our experience has been similar. It is likely that long-term studies will be necessary to answer this question. We have also done some cases with the tendon attached after releasing it from the coracoid, but the series is too small to make any comment about whether this is important or not.
The main limitation of this allograft technique is the lack of long-term outcome studies. However, short-term results are promising, and the ease of the procedure makes it an attractive option for either glenoid reconstruction of bony Bankart lesions or failed bone reconstruction, such as Bristow-Latarjet reconstruction.
Glenojetallograft is a new glenoid reconstruction option that is technically easy and simple to perform in cases of glenoid bone loss, while still creating an anatomical buttress with less surgical dissection than traditional coracoid bone transfer. Short-term outcomes are reassuring, though more research is needed for long-term graft follow-up and recurrent instability.
Am J Orthop. 2017;46(4):199-202. Copyright Frontline Medical Communications Inc. 2017. All rights reserved.
1. Burkhart SS, De Beer JF. Traumatic glenohumeral bone defects and their relationship to failure of arthroscopic Bankart repairs: significance of the inverted-pear glenoid and the humeral engaging Hill-Sachs lesion. Arthroscopy. 2000;16(7):677-694.
2. Rowe CR, Sakellarides HT. Factors related to recurrences of anterior dislocations of the shoulder. Clin Orthop. 1961;(20):40-48.
3. Piasecki DP, Verma NN, Romeo AA, Levine WN, Bach BR Jr, Provencher MT. Glenoid bone deficiency in recurrent anterior shoulder instability: diagnosis and management. J Am Acad Orthop Surg. 2009;17(8):482-493.
4. Sayegh ET, Mascarenhas R, Chalmers PN, Cole BJ, Verma NN, Romeo AA. Allograft reconstruction for glenoid bone loss in glenohumeral instability: a systematic review. Arthroscopy. 2014;30(12):1642-1649.
5. Griesser MJ, Harris JD, McCoy BW, et al. Complications and re-operati ons after Bristow-Latarjet shoulder stabilization: a systematic review. J Shoulder Elbow Surg. 2013;22(2):286-292.
6. Young DC, Rockwood CA Jr. Complications of a failed Bristow procedure and their management. J Bone Joint Surg Am. 1991;73(7):969-981.
7. Provencher MT, Frank RM, Golijanin P, et al. Distal tibia allograft glenoid reconstruction in recurrent anterior shoulder instability: clinical and radiographic outcomes. Arthroscopy. 2017;33(5):891-897.
8. Mascarenhas R, Raleigh E, McRae S, Leiter J, Saltzman B, MacDonald PB. Iliac crest allograft glenoid reconstruction for recurrent anterior shoulder instability in athletes: surgical technique and results. Int J Shoulder Surg. 2014;8(4):127-132.
9. Yamamoto N, Muraki T, An KN, et al. The stabilizing mechanism of the Latarjet procedure: a cadaveric study. J Bone Joint Surg Am. 2013;95(15):1390-1397.
1. Burkhart SS, De Beer JF. Traumatic glenohumeral bone defects and their relationship to failure of arthroscopic Bankart repairs: significance of the inverted-pear glenoid and the humeral engaging Hill-Sachs lesion. Arthroscopy. 2000;16(7):677-694.
2. Rowe CR, Sakellarides HT. Factors related to recurrences of anterior dislocations of the shoulder. Clin Orthop. 1961;(20):40-48.
3. Piasecki DP, Verma NN, Romeo AA, Levine WN, Bach BR Jr, Provencher MT. Glenoid bone deficiency in recurrent anterior shoulder instability: diagnosis and management. J Am Acad Orthop Surg. 2009;17(8):482-493.
4. Sayegh ET, Mascarenhas R, Chalmers PN, Cole BJ, Verma NN, Romeo AA. Allograft reconstruction for glenoid bone loss in glenohumeral instability: a systematic review. Arthroscopy. 2014;30(12):1642-1649.
5. Griesser MJ, Harris JD, McCoy BW, et al. Complications and re-operati ons after Bristow-Latarjet shoulder stabilization: a systematic review. J Shoulder Elbow Surg. 2013;22(2):286-292.
6. Young DC, Rockwood CA Jr. Complications of a failed Bristow procedure and their management. J Bone Joint Surg Am. 1991;73(7):969-981.
7. Provencher MT, Frank RM, Golijanin P, et al. Distal tibia allograft glenoid reconstruction in recurrent anterior shoulder instability: clinical and radiographic outcomes. Arthroscopy. 2017;33(5):891-897.
8. Mascarenhas R, Raleigh E, McRae S, Leiter J, Saltzman B, MacDonald PB. Iliac crest allograft glenoid reconstruction for recurrent anterior shoulder instability in athletes: surgical technique and results. Int J Shoulder Surg. 2014;8(4):127-132.
9. Yamamoto N, Muraki T, An KN, et al. The stabilizing mechanism of the Latarjet procedure: a cadaveric study. J Bone Joint Surg Am. 2013;95(15):1390-1397.
Phototherapy and Nondrug Therapies for Psoriasis Considered Beneficial by Patients
Oral or injected medications for psoriasis can be burdensome for patients, making them inclined to use alternative therapies such as phototherapy and other nondrug therapies, according to a public meeting hosted by the US Food and Drug Administration (FDA) to hear patient perspectives on psoriasis. Approximately 70 psoriasis patients or patient representatives attended the meeting in person and others attended through a live webcast.
More than half of participants indicated that they have used phototherapy. Both positive and negative experiences were reported. One participant reported that a home UVB 3-panel light box "dramatically changed [his/her] life." Other participants indicated phototherapy was less successful for them. Participants also indicated fears about skin cancer.
RELATED ARTICLE: Does UVB phototherapy cause skin cancer?
However, several participants reported that phototherapy was more effective when used in combination with other medical therapies. Similarly, most participants indicated using 1 or more nondrug therapies to manage their psoriatic symptoms. Approximately one-third used over-the-counter products, such as coal tar, salicylic acid, and Epsom salt. Slightly more than one-fourth indicated the importance of complementary or alternative therapy, including exercise and meditation, to manage their psoriasis symptoms. Diet modifications, such as eliminating alcohol, sugar, processed foods, drugs, gluten, and tobacco, also were reported as successful.
RELATED ARTICLE: Yoga for dermatologic conditions
RELATED VIDEO: Answering patient questions about diet
Psoriasis patients emphasized that an effective multimodal approach including drug, phototherapy, and nondrug therapies usually is done through trial and error based on each patient's individual needs. Dermatologists would benefit from knowing that nearly all participants in this public meeting indicated they value the benefits of nondrug therapies, and combination therapies using drug and nondrug therapies should be discussed with patients.
The psoriasis public meeting in March 2016 was the FDA's 18th patient-focused drug development meeting. The FDA sought this information to have a greater understanding of the burden of psoriasis on patients and the treatments currently used to treat psoriasis and its symptoms. This information will help guide the FDA as they consider future drug approvals.
Oral or injected medications for psoriasis can be burdensome for patients, making them inclined to use alternative therapies such as phototherapy and other nondrug therapies, according to a public meeting hosted by the US Food and Drug Administration (FDA) to hear patient perspectives on psoriasis. Approximately 70 psoriasis patients or patient representatives attended the meeting in person and others attended through a live webcast.
More than half of participants indicated that they have used phototherapy. Both positive and negative experiences were reported. One participant reported that a home UVB 3-panel light box "dramatically changed [his/her] life." Other participants indicated phototherapy was less successful for them. Participants also indicated fears about skin cancer.
RELATED ARTICLE: Does UVB phototherapy cause skin cancer?
However, several participants reported that phototherapy was more effective when used in combination with other medical therapies. Similarly, most participants indicated using 1 or more nondrug therapies to manage their psoriatic symptoms. Approximately one-third used over-the-counter products, such as coal tar, salicylic acid, and Epsom salt. Slightly more than one-fourth indicated the importance of complementary or alternative therapy, including exercise and meditation, to manage their psoriasis symptoms. Diet modifications, such as eliminating alcohol, sugar, processed foods, drugs, gluten, and tobacco, also were reported as successful.
RELATED ARTICLE: Yoga for dermatologic conditions
RELATED VIDEO: Answering patient questions about diet
Psoriasis patients emphasized that an effective multimodal approach including drug, phototherapy, and nondrug therapies usually is done through trial and error based on each patient's individual needs. Dermatologists would benefit from knowing that nearly all participants in this public meeting indicated they value the benefits of nondrug therapies, and combination therapies using drug and nondrug therapies should be discussed with patients.
The psoriasis public meeting in March 2016 was the FDA's 18th patient-focused drug development meeting. The FDA sought this information to have a greater understanding of the burden of psoriasis on patients and the treatments currently used to treat psoriasis and its symptoms. This information will help guide the FDA as they consider future drug approvals.
Oral or injected medications for psoriasis can be burdensome for patients, making them inclined to use alternative therapies such as phototherapy and other nondrug therapies, according to a public meeting hosted by the US Food and Drug Administration (FDA) to hear patient perspectives on psoriasis. Approximately 70 psoriasis patients or patient representatives attended the meeting in person and others attended through a live webcast.
More than half of participants indicated that they have used phototherapy. Both positive and negative experiences were reported. One participant reported that a home UVB 3-panel light box "dramatically changed [his/her] life." Other participants indicated phototherapy was less successful for them. Participants also indicated fears about skin cancer.
RELATED ARTICLE: Does UVB phototherapy cause skin cancer?
However, several participants reported that phototherapy was more effective when used in combination with other medical therapies. Similarly, most participants indicated using 1 or more nondrug therapies to manage their psoriatic symptoms. Approximately one-third used over-the-counter products, such as coal tar, salicylic acid, and Epsom salt. Slightly more than one-fourth indicated the importance of complementary or alternative therapy, including exercise and meditation, to manage their psoriasis symptoms. Diet modifications, such as eliminating alcohol, sugar, processed foods, drugs, gluten, and tobacco, also were reported as successful.
RELATED ARTICLE: Yoga for dermatologic conditions
RELATED VIDEO: Answering patient questions about diet
Psoriasis patients emphasized that an effective multimodal approach including drug, phototherapy, and nondrug therapies usually is done through trial and error based on each patient's individual needs. Dermatologists would benefit from knowing that nearly all participants in this public meeting indicated they value the benefits of nondrug therapies, and combination therapies using drug and nondrug therapies should be discussed with patients.
The psoriasis public meeting in March 2016 was the FDA's 18th patient-focused drug development meeting. The FDA sought this information to have a greater understanding of the burden of psoriasis on patients and the treatments currently used to treat psoriasis and its symptoms. This information will help guide the FDA as they consider future drug approvals.
Magnification for the Dermatologic Surgeon
Dermatologic surgeons are susceptible to work-related ailments given the nature of their working posture, the most common of which are pain and stiffness in the neck, shoulders, and lower back, as well as headaches.1,2 Awkward posture and positioning, for the sake of getting a better view of the task at hand, puts the surgeon in ergonomically disagreeable positions. Because the prime working years for a dermatologic surgeon tend to coincide with the age of presbyopia onset, magnification may help reduce and thwart musculoskeletal problems and eye strain. Indeed, a multitude of surgical specialties and dentists use intraoperative magnification.3 Knowledge and use of available magnification options can be a key addition to the dermatologic surgeon’s armamentarium. We discuss the need for magnification and review magnification devices that are readily available to the dermatologic surgeon. Table 1 presents a summary of all magnification options discussed.
Need for Magnification
Presbyopia is a condition of aging in which one loses the ability to accommodate and focus at near distances. The estimated prevalence of presbyopia in North America is 83%, typically with onset by 45 years of age.4 Individuals with presbyopia often hold objects farther away from their eyes to bring them into focus, causing eye strain, headaches, and musculoskeletal injury.
Use of intraoperative magnification allows for enhanced visualization of fine anatomic details and precise suture placement for the surgeon with or without presbyopia. Higher magnification produces a larger image; however, it also reduces field of view and depth of field (ie, the amount of depth that stays in focus without repositioning). The resolution and quality of the image are dependent on the optical properties of the lens system. The ideal optic system is surgeon dependent and involves a combination of magnification level that will not result in dramatic loss of view and depth of field, while maintaining crispness and quality of image.
Intraoperative magnification yields ergonomic benefits by promoting a safer neck flexion angle by increasing the working distance to a more ideal position (Figure). In doing so, it improves posture and minimizes eye and musculoskeletal strain secondary to awkward positioning and presbyopia.1,5 Stationary working position and neck flexion and rotation with precise and repetitive tasks are risk factors for strain and injuries that dermatologic surgeons often encounter.1 Magnification devices are tools that the dermatologic surgeon can utilize for a more ergonomically sound practice. Indeed, magnification has been shown to improve posture in the dental literature, a specialty with similar occupational risk factors to dermatologic surgery.6-8 Ergonomic practice reduces occupational injuries and improves work quality and productivity, thereby having a favorable effect on both the patient and the physician.
Improved Outcomes With Magnification
There are many examples of improved surgical quality and outcomes with magnification in other specialties. Hart and Hall5 illustrated the advantage of magnification in laceration repairs in the emergency department. In one study, increased magnification resulted in a substantial decrease in positive surgical margin rates in open radical retropubic prostatectomy.9 Schoeffl et al10 demonstrated that the microsurgical success of fine surgical procedures was directly related to optical magnification strength when comparing the unaided eye, surgical loupes, and the operating microscope. The dental literature also has numerous examples of magnification producing improved quality dentistry.11-13 Although magnification is not a novel concept to dermatologic surgery, little has been written about its use in the dermatologic surgery literature.
Magnification Options
One-Piece Bifocal Magnifying Safety Glasses
Bifocal magnifying safety glasses are polycarbonate safety glasses made with lenses in which the lower half is a magnifying lens. They are available in +1.5, +2.0, +2.5, and +3.0 diopter strengths. The total magnification power is calculated as follows: (diopter/4) + 1. The glasses are lightweight, easy to wear, inexpensive, and protect the eyes; however, they provide minimal magnification and do not compensate for differences in vision between both eyes.
Magnification Visor
The magnification visor is a headband visor with magnification lenses. It comes in various levels of magnification ranging from ×1.5 to ×3.5. It can be worn over prescription or safety glasses, may be pivoted out of the way when not in use, and is inexpensive. Conversely, it may be bulky to wear, cannot be customized, and does not offer the best resolution.
Magnification Clips
Magnification clips are hard-coated magnifying lens plates that fasten to eyeglass frames and range in level of magnification from ×1.5 to ×3.5. They can be pivoted out of the viewing angle, are lightweight, and are inexpensive; however, positioning may be difficult for ideal working distance and viewing angle.
Magnifier With Frame/Headband
The magnifier with frame is similar to magnification clips, but the magnification lens plate comes with a frame. It can be used with or without glasses and comes in magnification levels of ×1.5 to ×3.5. It is light, inexpensive, and may be pivoted out of sight, but similar to magnification clips, positioning for the right viewing angle and working distance may be difficult.
The magnifier with headband is essentially the same as the magnifier with frame. The only difference is the magnification plate is attached to a headband as opposed to a frame. It has similar benefits and limitations as the magnifier with frame.
Magnification Stand
The magnification stand comes as a large magnification lens with a flexible arm attached to a stand. It is a basic magnification tool and does not need to be worn; however, the stand is not easily portable and may be cumbersome to use.
Surgical Loupes
Surgical loupes are a robust magnification choice and the mainstay in magnification for the dermatologic surgeon. Loupes have proven to have comparable results in some procedures to the powerful operating surgical microscope.14-17 Factors to consider with loupes include brand, design, lens, magnification, resolution, optimal working distance, field depth, and declination angle.18
The 2 surgical loupe designs—flip-up loupes and through-the-lens loupes—differ in the mounting of the optic lenses on safety glasses. Flip-up loupes have the optics mounted to the bridge of the frame, whereas through-the-lens loupes are fixed in the lenses.
There are 3 different optical systems for surgical loupe magnification: simple, compound, and prismatic. Simple lenses consist of one pair of positive meniscus lenses similar to reading glasses. Compound lenses are made of 2 magnification lenses. Prismatic lenses magnify using a prism that folds and lengthens the light path.19,20
Loupes range in magnification level from ×2.5 to ×4.5. Compared to other magnification modalities, they can be customized and offer better resolution with quality magnification. Additionally, loupes can be fitted with a light source; however, they are expensive and surgeons need time to get used to the increased magnification as well as wearing the loupes.
There are advantages and disadvantages to the different loupe designs (Table 2). Flip-up loupes are more versatile, allowing for use on various safety glasses. They can be flipped out of view, and the declination angle may be altered; however, flip-up loupes have a narrower field of view and are heavier and bulkier than through-the-lens loupes. Through-the-lens loupes are lighter and have a larger field of view, as the optics are closer to the eye. They are customized to the declination angle and working distance of the surgeon. Conversely, through-the-lens loupes are more expensive and cannot be adjusted or moved from the line of vision.
Operating Surgical Microscope
The operating surgical microscope is not practical in the dermatologic surgeon’s practice. It is expensive and provides unnecessarily powerful magnification for dermatologic surgery. This tool usually is used in the operating room for suturing nerves and vessels with sutures sized 8-0 and smaller. Most skin procedures require size 6-0 and larger sutures.
Dermoscope
Dermoscopy, also known as epiluminescence microscopy, is a technique utilizing a handheld device made up of polarized light and a ×10 magnifying lens to evaluate skin lesions. In skilled hands, dermoscopy allows for the examination of characteristic patterns and morphologic features of skin lesions to enhance the clinician’s diagnostic accuracy.21 It may aid the dermatologic surgeon in identifying the surgical margins of difficult-to-define skin cancers. It is small and mobile; however, it has minimal benefit to the dermatologic surgeon during surgery because it is handheld and has a small field of view.
Conclusion
Good ergonomic practices facilitate a healthier and prolonged career for the dermatologic surgeon. When used properly, magnification devices can be a beneficial adjunct to the dermatologic surgeon by promoting better posture, preventing eyestrain, and providing enhanced visualization of the operating field and instruments. Use of magnification devices has been demonstrated to improve patient outcomes in other specialties. There are opportunities for further research specific to magnification improving dermatologic surgery outcomes given the high level of precision and accuracy needed for Mohs micrographic surgery, wound reconstruction, nail surgery, and hair transplantation.
- Liang CA, Levine VJ, Dusza SW, et al. Musculoskeletal disorders and ergonomics in dermatologic surgery: a survey of Mohs surgeons in 2010. Dermatol Surg. 2012;38:240-248.
- Esser AC, Koshy JG, Randle HW. Ergonomics in office-based surgery: a survey-guided observational study. Dermatol Surg. 2007;33:1304-1313; discussion, 1313-1314.
- Jarrett PM. Intraoperative magnification: who uses it? Microsurgery. 2004;24:420-422.
- Holden BA, Fricke TR, Ho SM, et al. Global vision impairment due to uncorrected presbyopia. Arch Ophthalmol. 2008;126:1731-1739.
- Hart RG, Hall J. The value of loupe magnification: an underused tool in emergency medicine. Am J Emerg Med. 2007;25:704-707.
- Branson BG, Bray KK, Gadbury-Amyot C, et al. Effect of magnification lenses on student operator posture. J Dent Educ. 2004;68:384-389.
- Maillet JP, Millar AM, Burke JM, et al. Effect of magnification loupes on dental hygiene student posture. J Dent Educ. 2008;72:33-44.
- Branson BG, Black MA, Simmer-Beck M. Changes in posture: a case study of a dental hygienist’s use of magnification loupes. Work. 2010;35:467-476.
- Magera JS Jr, Inman BA, Slezak JM, et al. Increased optical magnification from 2.5× to 4.3× with technical modification lowers the positive margin rate in open radical retropubic prostatectomy [published online November 13, 2007].J Urol. 2008;179:130-135.
- Schoeffl H, Lazzeri D, Schnelzer R, et al. Optical magnification should be mandatory for microsurgery: scientific basis and clinical data contributing to quality assurance. Arch Plast Surg. 2013;40:104-108.
- Taschieri S, Del Fabbro M, Testori T, et al. Endodontic surgery using 2 different magnification devices: preliminary results of a randomized controlled study. J Oral Maxillofac Surg. 2006;64:235-242.
- Christensen GJ. Magnification in dentistry: useful tool or another gimmick? J Am Dent Assoc. 2003;134:1647-1650.
- Syme SE, Fried JL, Strassler HE. Enhanced visualization using magnification systems. J Dent Hyg. 1997;71:202-206.
- Pieptu D, Luchian S. Loupes-only microsurgery. Microsurgery. 2003;23:181-188.
- Shenaq SM, Klebuc MJ, Vargo D. Free-tissue transfer with the aid of loupe magnification: experience with 251 procedures. Plast Reconstr Surg. 1995;95:261-269.
- Serletti JM, Deuber MA, Guidera PM, et al. Comparison of the operating microscope and loupes for free microvascular tissue transfer. Plast Reconstr Surg. 1995;95:270-276.
- Ross DA, Ariyan S, Restifo R, et al. Use of the operating microscope and loupes for head and neck free microvascular tissue transfer: a retrospective comparison. Arch Otolaryngol Head Neck Surg. 2003;129:189-193.
- Mungadi IA. Refinement on surgical technique: role of magnification. J Surg Tech Case Rep. 2010;2:1-2.
- Stanbury SJ, Elfar J. The use of surgical loupes in microsurgery. J Hand Surg Am. 2011;36:154-156.
- Baker JM, Meals RA. A practical guide to surgical loupes. J Hand Surg Am. 1997;22:967-974.
- Campos-do-Carmo G, Ramos-e-Silva M. Dermoscopy: basic concepts. Int J Dermatol. 2008;47:712-719.
Dermatologic surgeons are susceptible to work-related ailments given the nature of their working posture, the most common of which are pain and stiffness in the neck, shoulders, and lower back, as well as headaches.1,2 Awkward posture and positioning, for the sake of getting a better view of the task at hand, puts the surgeon in ergonomically disagreeable positions. Because the prime working years for a dermatologic surgeon tend to coincide with the age of presbyopia onset, magnification may help reduce and thwart musculoskeletal problems and eye strain. Indeed, a multitude of surgical specialties and dentists use intraoperative magnification.3 Knowledge and use of available magnification options can be a key addition to the dermatologic surgeon’s armamentarium. We discuss the need for magnification and review magnification devices that are readily available to the dermatologic surgeon. Table 1 presents a summary of all magnification options discussed.
Need for Magnification
Presbyopia is a condition of aging in which one loses the ability to accommodate and focus at near distances. The estimated prevalence of presbyopia in North America is 83%, typically with onset by 45 years of age.4 Individuals with presbyopia often hold objects farther away from their eyes to bring them into focus, causing eye strain, headaches, and musculoskeletal injury.
Use of intraoperative magnification allows for enhanced visualization of fine anatomic details and precise suture placement for the surgeon with or without presbyopia. Higher magnification produces a larger image; however, it also reduces field of view and depth of field (ie, the amount of depth that stays in focus without repositioning). The resolution and quality of the image are dependent on the optical properties of the lens system. The ideal optic system is surgeon dependent and involves a combination of magnification level that will not result in dramatic loss of view and depth of field, while maintaining crispness and quality of image.
Intraoperative magnification yields ergonomic benefits by promoting a safer neck flexion angle by increasing the working distance to a more ideal position (Figure). In doing so, it improves posture and minimizes eye and musculoskeletal strain secondary to awkward positioning and presbyopia.1,5 Stationary working position and neck flexion and rotation with precise and repetitive tasks are risk factors for strain and injuries that dermatologic surgeons often encounter.1 Magnification devices are tools that the dermatologic surgeon can utilize for a more ergonomically sound practice. Indeed, magnification has been shown to improve posture in the dental literature, a specialty with similar occupational risk factors to dermatologic surgery.6-8 Ergonomic practice reduces occupational injuries and improves work quality and productivity, thereby having a favorable effect on both the patient and the physician.
Improved Outcomes With Magnification
There are many examples of improved surgical quality and outcomes with magnification in other specialties. Hart and Hall5 illustrated the advantage of magnification in laceration repairs in the emergency department. In one study, increased magnification resulted in a substantial decrease in positive surgical margin rates in open radical retropubic prostatectomy.9 Schoeffl et al10 demonstrated that the microsurgical success of fine surgical procedures was directly related to optical magnification strength when comparing the unaided eye, surgical loupes, and the operating microscope. The dental literature also has numerous examples of magnification producing improved quality dentistry.11-13 Although magnification is not a novel concept to dermatologic surgery, little has been written about its use in the dermatologic surgery literature.
Magnification Options
One-Piece Bifocal Magnifying Safety Glasses
Bifocal magnifying safety glasses are polycarbonate safety glasses made with lenses in which the lower half is a magnifying lens. They are available in +1.5, +2.0, +2.5, and +3.0 diopter strengths. The total magnification power is calculated as follows: (diopter/4) + 1. The glasses are lightweight, easy to wear, inexpensive, and protect the eyes; however, they provide minimal magnification and do not compensate for differences in vision between both eyes.
Magnification Visor
The magnification visor is a headband visor with magnification lenses. It comes in various levels of magnification ranging from ×1.5 to ×3.5. It can be worn over prescription or safety glasses, may be pivoted out of the way when not in use, and is inexpensive. Conversely, it may be bulky to wear, cannot be customized, and does not offer the best resolution.
Magnification Clips
Magnification clips are hard-coated magnifying lens plates that fasten to eyeglass frames and range in level of magnification from ×1.5 to ×3.5. They can be pivoted out of the viewing angle, are lightweight, and are inexpensive; however, positioning may be difficult for ideal working distance and viewing angle.
Magnifier With Frame/Headband
The magnifier with frame is similar to magnification clips, but the magnification lens plate comes with a frame. It can be used with or without glasses and comes in magnification levels of ×1.5 to ×3.5. It is light, inexpensive, and may be pivoted out of sight, but similar to magnification clips, positioning for the right viewing angle and working distance may be difficult.
The magnifier with headband is essentially the same as the magnifier with frame. The only difference is the magnification plate is attached to a headband as opposed to a frame. It has similar benefits and limitations as the magnifier with frame.
Magnification Stand
The magnification stand comes as a large magnification lens with a flexible arm attached to a stand. It is a basic magnification tool and does not need to be worn; however, the stand is not easily portable and may be cumbersome to use.
Surgical Loupes
Surgical loupes are a robust magnification choice and the mainstay in magnification for the dermatologic surgeon. Loupes have proven to have comparable results in some procedures to the powerful operating surgical microscope.14-17 Factors to consider with loupes include brand, design, lens, magnification, resolution, optimal working distance, field depth, and declination angle.18
The 2 surgical loupe designs—flip-up loupes and through-the-lens loupes—differ in the mounting of the optic lenses on safety glasses. Flip-up loupes have the optics mounted to the bridge of the frame, whereas through-the-lens loupes are fixed in the lenses.
There are 3 different optical systems for surgical loupe magnification: simple, compound, and prismatic. Simple lenses consist of one pair of positive meniscus lenses similar to reading glasses. Compound lenses are made of 2 magnification lenses. Prismatic lenses magnify using a prism that folds and lengthens the light path.19,20
Loupes range in magnification level from ×2.5 to ×4.5. Compared to other magnification modalities, they can be customized and offer better resolution with quality magnification. Additionally, loupes can be fitted with a light source; however, they are expensive and surgeons need time to get used to the increased magnification as well as wearing the loupes.
There are advantages and disadvantages to the different loupe designs (Table 2). Flip-up loupes are more versatile, allowing for use on various safety glasses. They can be flipped out of view, and the declination angle may be altered; however, flip-up loupes have a narrower field of view and are heavier and bulkier than through-the-lens loupes. Through-the-lens loupes are lighter and have a larger field of view, as the optics are closer to the eye. They are customized to the declination angle and working distance of the surgeon. Conversely, through-the-lens loupes are more expensive and cannot be adjusted or moved from the line of vision.
Operating Surgical Microscope
The operating surgical microscope is not practical in the dermatologic surgeon’s practice. It is expensive and provides unnecessarily powerful magnification for dermatologic surgery. This tool usually is used in the operating room for suturing nerves and vessels with sutures sized 8-0 and smaller. Most skin procedures require size 6-0 and larger sutures.
Dermoscope
Dermoscopy, also known as epiluminescence microscopy, is a technique utilizing a handheld device made up of polarized light and a ×10 magnifying lens to evaluate skin lesions. In skilled hands, dermoscopy allows for the examination of characteristic patterns and morphologic features of skin lesions to enhance the clinician’s diagnostic accuracy.21 It may aid the dermatologic surgeon in identifying the surgical margins of difficult-to-define skin cancers. It is small and mobile; however, it has minimal benefit to the dermatologic surgeon during surgery because it is handheld and has a small field of view.
Conclusion
Good ergonomic practices facilitate a healthier and prolonged career for the dermatologic surgeon. When used properly, magnification devices can be a beneficial adjunct to the dermatologic surgeon by promoting better posture, preventing eyestrain, and providing enhanced visualization of the operating field and instruments. Use of magnification devices has been demonstrated to improve patient outcomes in other specialties. There are opportunities for further research specific to magnification improving dermatologic surgery outcomes given the high level of precision and accuracy needed for Mohs micrographic surgery, wound reconstruction, nail surgery, and hair transplantation.
Dermatologic surgeons are susceptible to work-related ailments given the nature of their working posture, the most common of which are pain and stiffness in the neck, shoulders, and lower back, as well as headaches.1,2 Awkward posture and positioning, for the sake of getting a better view of the task at hand, puts the surgeon in ergonomically disagreeable positions. Because the prime working years for a dermatologic surgeon tend to coincide with the age of presbyopia onset, magnification may help reduce and thwart musculoskeletal problems and eye strain. Indeed, a multitude of surgical specialties and dentists use intraoperative magnification.3 Knowledge and use of available magnification options can be a key addition to the dermatologic surgeon’s armamentarium. We discuss the need for magnification and review magnification devices that are readily available to the dermatologic surgeon. Table 1 presents a summary of all magnification options discussed.
Need for Magnification
Presbyopia is a condition of aging in which one loses the ability to accommodate and focus at near distances. The estimated prevalence of presbyopia in North America is 83%, typically with onset by 45 years of age.4 Individuals with presbyopia often hold objects farther away from their eyes to bring them into focus, causing eye strain, headaches, and musculoskeletal injury.
Use of intraoperative magnification allows for enhanced visualization of fine anatomic details and precise suture placement for the surgeon with or without presbyopia. Higher magnification produces a larger image; however, it also reduces field of view and depth of field (ie, the amount of depth that stays in focus without repositioning). The resolution and quality of the image are dependent on the optical properties of the lens system. The ideal optic system is surgeon dependent and involves a combination of magnification level that will not result in dramatic loss of view and depth of field, while maintaining crispness and quality of image.
Intraoperative magnification yields ergonomic benefits by promoting a safer neck flexion angle by increasing the working distance to a more ideal position (Figure). In doing so, it improves posture and minimizes eye and musculoskeletal strain secondary to awkward positioning and presbyopia.1,5 Stationary working position and neck flexion and rotation with precise and repetitive tasks are risk factors for strain and injuries that dermatologic surgeons often encounter.1 Magnification devices are tools that the dermatologic surgeon can utilize for a more ergonomically sound practice. Indeed, magnification has been shown to improve posture in the dental literature, a specialty with similar occupational risk factors to dermatologic surgery.6-8 Ergonomic practice reduces occupational injuries and improves work quality and productivity, thereby having a favorable effect on both the patient and the physician.
Improved Outcomes With Magnification
There are many examples of improved surgical quality and outcomes with magnification in other specialties. Hart and Hall5 illustrated the advantage of magnification in laceration repairs in the emergency department. In one study, increased magnification resulted in a substantial decrease in positive surgical margin rates in open radical retropubic prostatectomy.9 Schoeffl et al10 demonstrated that the microsurgical success of fine surgical procedures was directly related to optical magnification strength when comparing the unaided eye, surgical loupes, and the operating microscope. The dental literature also has numerous examples of magnification producing improved quality dentistry.11-13 Although magnification is not a novel concept to dermatologic surgery, little has been written about its use in the dermatologic surgery literature.
Magnification Options
One-Piece Bifocal Magnifying Safety Glasses
Bifocal magnifying safety glasses are polycarbonate safety glasses made with lenses in which the lower half is a magnifying lens. They are available in +1.5, +2.0, +2.5, and +3.0 diopter strengths. The total magnification power is calculated as follows: (diopter/4) + 1. The glasses are lightweight, easy to wear, inexpensive, and protect the eyes; however, they provide minimal magnification and do not compensate for differences in vision between both eyes.
Magnification Visor
The magnification visor is a headband visor with magnification lenses. It comes in various levels of magnification ranging from ×1.5 to ×3.5. It can be worn over prescription or safety glasses, may be pivoted out of the way when not in use, and is inexpensive. Conversely, it may be bulky to wear, cannot be customized, and does not offer the best resolution.
Magnification Clips
Magnification clips are hard-coated magnifying lens plates that fasten to eyeglass frames and range in level of magnification from ×1.5 to ×3.5. They can be pivoted out of the viewing angle, are lightweight, and are inexpensive; however, positioning may be difficult for ideal working distance and viewing angle.
Magnifier With Frame/Headband
The magnifier with frame is similar to magnification clips, but the magnification lens plate comes with a frame. It can be used with or without glasses and comes in magnification levels of ×1.5 to ×3.5. It is light, inexpensive, and may be pivoted out of sight, but similar to magnification clips, positioning for the right viewing angle and working distance may be difficult.
The magnifier with headband is essentially the same as the magnifier with frame. The only difference is the magnification plate is attached to a headband as opposed to a frame. It has similar benefits and limitations as the magnifier with frame.
Magnification Stand
The magnification stand comes as a large magnification lens with a flexible arm attached to a stand. It is a basic magnification tool and does not need to be worn; however, the stand is not easily portable and may be cumbersome to use.
Surgical Loupes
Surgical loupes are a robust magnification choice and the mainstay in magnification for the dermatologic surgeon. Loupes have proven to have comparable results in some procedures to the powerful operating surgical microscope.14-17 Factors to consider with loupes include brand, design, lens, magnification, resolution, optimal working distance, field depth, and declination angle.18
The 2 surgical loupe designs—flip-up loupes and through-the-lens loupes—differ in the mounting of the optic lenses on safety glasses. Flip-up loupes have the optics mounted to the bridge of the frame, whereas through-the-lens loupes are fixed in the lenses.
There are 3 different optical systems for surgical loupe magnification: simple, compound, and prismatic. Simple lenses consist of one pair of positive meniscus lenses similar to reading glasses. Compound lenses are made of 2 magnification lenses. Prismatic lenses magnify using a prism that folds and lengthens the light path.19,20
Loupes range in magnification level from ×2.5 to ×4.5. Compared to other magnification modalities, they can be customized and offer better resolution with quality magnification. Additionally, loupes can be fitted with a light source; however, they are expensive and surgeons need time to get used to the increased magnification as well as wearing the loupes.
There are advantages and disadvantages to the different loupe designs (Table 2). Flip-up loupes are more versatile, allowing for use on various safety glasses. They can be flipped out of view, and the declination angle may be altered; however, flip-up loupes have a narrower field of view and are heavier and bulkier than through-the-lens loupes. Through-the-lens loupes are lighter and have a larger field of view, as the optics are closer to the eye. They are customized to the declination angle and working distance of the surgeon. Conversely, through-the-lens loupes are more expensive and cannot be adjusted or moved from the line of vision.
Operating Surgical Microscope
The operating surgical microscope is not practical in the dermatologic surgeon’s practice. It is expensive and provides unnecessarily powerful magnification for dermatologic surgery. This tool usually is used in the operating room for suturing nerves and vessels with sutures sized 8-0 and smaller. Most skin procedures require size 6-0 and larger sutures.
Dermoscope
Dermoscopy, also known as epiluminescence microscopy, is a technique utilizing a handheld device made up of polarized light and a ×10 magnifying lens to evaluate skin lesions. In skilled hands, dermoscopy allows for the examination of characteristic patterns and morphologic features of skin lesions to enhance the clinician’s diagnostic accuracy.21 It may aid the dermatologic surgeon in identifying the surgical margins of difficult-to-define skin cancers. It is small and mobile; however, it has minimal benefit to the dermatologic surgeon during surgery because it is handheld and has a small field of view.
Conclusion
Good ergonomic practices facilitate a healthier and prolonged career for the dermatologic surgeon. When used properly, magnification devices can be a beneficial adjunct to the dermatologic surgeon by promoting better posture, preventing eyestrain, and providing enhanced visualization of the operating field and instruments. Use of magnification devices has been demonstrated to improve patient outcomes in other specialties. There are opportunities for further research specific to magnification improving dermatologic surgery outcomes given the high level of precision and accuracy needed for Mohs micrographic surgery, wound reconstruction, nail surgery, and hair transplantation.
- Liang CA, Levine VJ, Dusza SW, et al. Musculoskeletal disorders and ergonomics in dermatologic surgery: a survey of Mohs surgeons in 2010. Dermatol Surg. 2012;38:240-248.
- Esser AC, Koshy JG, Randle HW. Ergonomics in office-based surgery: a survey-guided observational study. Dermatol Surg. 2007;33:1304-1313; discussion, 1313-1314.
- Jarrett PM. Intraoperative magnification: who uses it? Microsurgery. 2004;24:420-422.
- Holden BA, Fricke TR, Ho SM, et al. Global vision impairment due to uncorrected presbyopia. Arch Ophthalmol. 2008;126:1731-1739.
- Hart RG, Hall J. The value of loupe magnification: an underused tool in emergency medicine. Am J Emerg Med. 2007;25:704-707.
- Branson BG, Bray KK, Gadbury-Amyot C, et al. Effect of magnification lenses on student operator posture. J Dent Educ. 2004;68:384-389.
- Maillet JP, Millar AM, Burke JM, et al. Effect of magnification loupes on dental hygiene student posture. J Dent Educ. 2008;72:33-44.
- Branson BG, Black MA, Simmer-Beck M. Changes in posture: a case study of a dental hygienist’s use of magnification loupes. Work. 2010;35:467-476.
- Magera JS Jr, Inman BA, Slezak JM, et al. Increased optical magnification from 2.5× to 4.3× with technical modification lowers the positive margin rate in open radical retropubic prostatectomy [published online November 13, 2007].J Urol. 2008;179:130-135.
- Schoeffl H, Lazzeri D, Schnelzer R, et al. Optical magnification should be mandatory for microsurgery: scientific basis and clinical data contributing to quality assurance. Arch Plast Surg. 2013;40:104-108.
- Taschieri S, Del Fabbro M, Testori T, et al. Endodontic surgery using 2 different magnification devices: preliminary results of a randomized controlled study. J Oral Maxillofac Surg. 2006;64:235-242.
- Christensen GJ. Magnification in dentistry: useful tool or another gimmick? J Am Dent Assoc. 2003;134:1647-1650.
- Syme SE, Fried JL, Strassler HE. Enhanced visualization using magnification systems. J Dent Hyg. 1997;71:202-206.
- Pieptu D, Luchian S. Loupes-only microsurgery. Microsurgery. 2003;23:181-188.
- Shenaq SM, Klebuc MJ, Vargo D. Free-tissue transfer with the aid of loupe magnification: experience with 251 procedures. Plast Reconstr Surg. 1995;95:261-269.
- Serletti JM, Deuber MA, Guidera PM, et al. Comparison of the operating microscope and loupes for free microvascular tissue transfer. Plast Reconstr Surg. 1995;95:270-276.
- Ross DA, Ariyan S, Restifo R, et al. Use of the operating microscope and loupes for head and neck free microvascular tissue transfer: a retrospective comparison. Arch Otolaryngol Head Neck Surg. 2003;129:189-193.
- Mungadi IA. Refinement on surgical technique: role of magnification. J Surg Tech Case Rep. 2010;2:1-2.
- Stanbury SJ, Elfar J. The use of surgical loupes in microsurgery. J Hand Surg Am. 2011;36:154-156.
- Baker JM, Meals RA. A practical guide to surgical loupes. J Hand Surg Am. 1997;22:967-974.
- Campos-do-Carmo G, Ramos-e-Silva M. Dermoscopy: basic concepts. Int J Dermatol. 2008;47:712-719.
- Liang CA, Levine VJ, Dusza SW, et al. Musculoskeletal disorders and ergonomics in dermatologic surgery: a survey of Mohs surgeons in 2010. Dermatol Surg. 2012;38:240-248.
- Esser AC, Koshy JG, Randle HW. Ergonomics in office-based surgery: a survey-guided observational study. Dermatol Surg. 2007;33:1304-1313; discussion, 1313-1314.
- Jarrett PM. Intraoperative magnification: who uses it? Microsurgery. 2004;24:420-422.
- Holden BA, Fricke TR, Ho SM, et al. Global vision impairment due to uncorrected presbyopia. Arch Ophthalmol. 2008;126:1731-1739.
- Hart RG, Hall J. The value of loupe magnification: an underused tool in emergency medicine. Am J Emerg Med. 2007;25:704-707.
- Branson BG, Bray KK, Gadbury-Amyot C, et al. Effect of magnification lenses on student operator posture. J Dent Educ. 2004;68:384-389.
- Maillet JP, Millar AM, Burke JM, et al. Effect of magnification loupes on dental hygiene student posture. J Dent Educ. 2008;72:33-44.
- Branson BG, Black MA, Simmer-Beck M. Changes in posture: a case study of a dental hygienist’s use of magnification loupes. Work. 2010;35:467-476.
- Magera JS Jr, Inman BA, Slezak JM, et al. Increased optical magnification from 2.5× to 4.3× with technical modification lowers the positive margin rate in open radical retropubic prostatectomy [published online November 13, 2007].J Urol. 2008;179:130-135.
- Schoeffl H, Lazzeri D, Schnelzer R, et al. Optical magnification should be mandatory for microsurgery: scientific basis and clinical data contributing to quality assurance. Arch Plast Surg. 2013;40:104-108.
- Taschieri S, Del Fabbro M, Testori T, et al. Endodontic surgery using 2 different magnification devices: preliminary results of a randomized controlled study. J Oral Maxillofac Surg. 2006;64:235-242.
- Christensen GJ. Magnification in dentistry: useful tool or another gimmick? J Am Dent Assoc. 2003;134:1647-1650.
- Syme SE, Fried JL, Strassler HE. Enhanced visualization using magnification systems. J Dent Hyg. 1997;71:202-206.
- Pieptu D, Luchian S. Loupes-only microsurgery. Microsurgery. 2003;23:181-188.
- Shenaq SM, Klebuc MJ, Vargo D. Free-tissue transfer with the aid of loupe magnification: experience with 251 procedures. Plast Reconstr Surg. 1995;95:261-269.
- Serletti JM, Deuber MA, Guidera PM, et al. Comparison of the operating microscope and loupes for free microvascular tissue transfer. Plast Reconstr Surg. 1995;95:270-276.
- Ross DA, Ariyan S, Restifo R, et al. Use of the operating microscope and loupes for head and neck free microvascular tissue transfer: a retrospective comparison. Arch Otolaryngol Head Neck Surg. 2003;129:189-193.
- Mungadi IA. Refinement on surgical technique: role of magnification. J Surg Tech Case Rep. 2010;2:1-2.
- Stanbury SJ, Elfar J. The use of surgical loupes in microsurgery. J Hand Surg Am. 2011;36:154-156.
- Baker JM, Meals RA. A practical guide to surgical loupes. J Hand Surg Am. 1997;22:967-974.
- Campos-do-Carmo G, Ramos-e-Silva M. Dermoscopy: basic concepts. Int J Dermatol. 2008;47:712-719.
Practice Points
- Ergonomic practice is paramount in preserving the longevity and productivity of the dermatologic surgeon.
- A magnification device may be a helpful addition for a dermatologic surgeon to achieve a healthier and more productive practice.
Debunking Acne Myths: Should Patients With Oily Skin Use a Moisturizer?
Myth: Moisturizers Make Acne Worse in Patients With Oily Skin
Excessive sebum production can lead to oily skin that appears greasy and shiny, which contributes to the development of acne on the face. Acne patients with oily skin may be deterred from using moisturizers out of fear that their condition will worsen, yet therapeutic moisturizers have been shown to maintain hydration and overall integrity of the stratum corneum.
In a study of patient experiences with oily skin, 68% (n=37) of participants said their skin felt unclean, dirty, or grimy. Some participants noted a feeling of having clogged pores or an additional layer of skin, and others reported that their skin felt oily or greasy to the touch. The study also reported that participants with oily skin felt self-conscious, which impacted their daily life. These domains also are affected by having acne.
In the same study, 18% (n=10) of participants reported washing their face 6 to 15 times per day, 50% (n=27) washed their face 3 to 5 times per day, and 42% (n=23) washed their face 1 to 2 times per day. Instead of applying heavy moisturizers, acne patients with oily skin may feel the need to constantly wash their face. Gentle face washing is recommended to help improve and prevent acne, but patients who wash their face excessively are at risk for skin barrier impairment and development of dry skin.
Acne patients can use noncomedogenic moisturizers to prevent and alleviate skin irritation and soothe the skin by slowing the evaporation of water. Many moisturizers on the market claim to be suitable for acne treatment and may independently contribute to improving the signs and symptoms of acne. It is important for dermatologists to direct patients with oily skin to oil-free moisturizers containing ingredients such as dimethicone, which is known to reduce transepidermal water loss without a greasy feel and contains both occlusive and emollient properties. Dimethicone is suitable for use in patients with acne and sensitive skin and is noncomedogenic and hypoallergenic. Many oil-free moisturizers also contain certain metals and botanical extracts, such as aloe vera and witch hazel, that are known to have anti-inflammatory and skin-soothing properties. Some liquid face cleansers also moisturize, which may be all that is needed in patients with oily skin.
It also is important to inform patients with oily skin that common acne treatments such as benzoyl peroxide, retinoids, salicylic acid, and oral isotretinoin commonly cause dry skin or irritation, leading to barrier disruption in the stratum corneum and subsequently causing increased transepidermal water loss and inflammation. Concomitant use of noncomedogenic moisturizers can enhance treatment efficacy, alleviate dryness, and improve skin comfort in acne patients who are taking these medications.
Expert Commentary
An often forgotten element of acne vulgaris is that it is in fact a disease of barrier dysfunction and disruption. As mentioned above, many of the medications used to treat this chronic inflammatory disease are either directly cytotoxic to keratinocytes (benzoyl peroxide) or alter the thickness and composition of the stratum corneum (retinoids), impairing its protective functions. The inflammatory cascade associated with acne itself can impair the barrier, synergizing with the array of aforementioned medications. Both etiological factors disrupt an often overlooked yet crucial component of the skin barrier, the cutaneous microbiota. The altered landscape, or petri dish if you will, unhinges the balance between the >500 species of organisms living in harmony on the skin, decreasing bacterial diversity and facilitating the overgrowth of specific organisms, here specifically certain types of Propionibacterium acnes, which contribute to the ongoing inflammatory cascade. If that's not enough, sebum, which is certainly in excess in acne, contributes very little to barrier function and skin hydration but can be used to cause a different form of disruption by P acnes, which when converted into short-chain fatty acids can impair cutaneous immune tolerance ultimately creating, you guessed it, more inflammation (thank Dr. Rich Gallo for tying this all together). All in all, the barrier is a mess, highlighting the need for barrier repair with a moisturizer to restore the "balance" on every level: Repair and replace the stratum corneum, restore the tools for the right bacteria to grow (water, carbs, lipids, etc). Moisturizers are a must in acne!
—Adam Friedman, MD (Washington, DC)
Arbuckle R, Atkinson MJ, Clark M, et al. Patient experiences with oily skin: the qualitative development of content for two new patient reported outcome questionnaires [published online October 16, 2008]. Health Qual Life Outcomes. 2008;6:80.
Bikowski J. The use of therapeutic moisturizers in various dermatologic disorders. Cutis. 2001;68(suppl 5):3-11.
Chularojanamontri L, Tuchinda P, Kulthanan K, et al. Moisturizers for acne: what are their constituents? J Clin Aesthet Dermatol. 2014;7:36-44.
Goodman G. Cleansing and moisturizing in acne patients. Am J Clin Dermatol. 2009;10(suppl 1):1-6.
Isoda K, Seki T, Inoue Y, et al. Efficacy of the combined use of a facial cleanser and moisturizers for the care of mild acne patients with sensitive skin [published online December 6, 2014]. J Dermatol. 2015;42:181-188.
Myth: Moisturizers Make Acne Worse in Patients With Oily Skin
Excessive sebum production can lead to oily skin that appears greasy and shiny, which contributes to the development of acne on the face. Acne patients with oily skin may be deterred from using moisturizers out of fear that their condition will worsen, yet therapeutic moisturizers have been shown to maintain hydration and overall integrity of the stratum corneum.
In a study of patient experiences with oily skin, 68% (n=37) of participants said their skin felt unclean, dirty, or grimy. Some participants noted a feeling of having clogged pores or an additional layer of skin, and others reported that their skin felt oily or greasy to the touch. The study also reported that participants with oily skin felt self-conscious, which impacted their daily life. These domains also are affected by having acne.
In the same study, 18% (n=10) of participants reported washing their face 6 to 15 times per day, 50% (n=27) washed their face 3 to 5 times per day, and 42% (n=23) washed their face 1 to 2 times per day. Instead of applying heavy moisturizers, acne patients with oily skin may feel the need to constantly wash their face. Gentle face washing is recommended to help improve and prevent acne, but patients who wash their face excessively are at risk for skin barrier impairment and development of dry skin.
Acne patients can use noncomedogenic moisturizers to prevent and alleviate skin irritation and soothe the skin by slowing the evaporation of water. Many moisturizers on the market claim to be suitable for acne treatment and may independently contribute to improving the signs and symptoms of acne. It is important for dermatologists to direct patients with oily skin to oil-free moisturizers containing ingredients such as dimethicone, which is known to reduce transepidermal water loss without a greasy feel and contains both occlusive and emollient properties. Dimethicone is suitable for use in patients with acne and sensitive skin and is noncomedogenic and hypoallergenic. Many oil-free moisturizers also contain certain metals and botanical extracts, such as aloe vera and witch hazel, that are known to have anti-inflammatory and skin-soothing properties. Some liquid face cleansers also moisturize, which may be all that is needed in patients with oily skin.
It also is important to inform patients with oily skin that common acne treatments such as benzoyl peroxide, retinoids, salicylic acid, and oral isotretinoin commonly cause dry skin or irritation, leading to barrier disruption in the stratum corneum and subsequently causing increased transepidermal water loss and inflammation. Concomitant use of noncomedogenic moisturizers can enhance treatment efficacy, alleviate dryness, and improve skin comfort in acne patients who are taking these medications.
Expert Commentary
An often forgotten element of acne vulgaris is that it is in fact a disease of barrier dysfunction and disruption. As mentioned above, many of the medications used to treat this chronic inflammatory disease are either directly cytotoxic to keratinocytes (benzoyl peroxide) or alter the thickness and composition of the stratum corneum (retinoids), impairing its protective functions. The inflammatory cascade associated with acne itself can impair the barrier, synergizing with the array of aforementioned medications. Both etiological factors disrupt an often overlooked yet crucial component of the skin barrier, the cutaneous microbiota. The altered landscape, or petri dish if you will, unhinges the balance between the >500 species of organisms living in harmony on the skin, decreasing bacterial diversity and facilitating the overgrowth of specific organisms, here specifically certain types of Propionibacterium acnes, which contribute to the ongoing inflammatory cascade. If that's not enough, sebum, which is certainly in excess in acne, contributes very little to barrier function and skin hydration but can be used to cause a different form of disruption by P acnes, which when converted into short-chain fatty acids can impair cutaneous immune tolerance ultimately creating, you guessed it, more inflammation (thank Dr. Rich Gallo for tying this all together). All in all, the barrier is a mess, highlighting the need for barrier repair with a moisturizer to restore the "balance" on every level: Repair and replace the stratum corneum, restore the tools for the right bacteria to grow (water, carbs, lipids, etc). Moisturizers are a must in acne!
—Adam Friedman, MD (Washington, DC)
Myth: Moisturizers Make Acne Worse in Patients With Oily Skin
Excessive sebum production can lead to oily skin that appears greasy and shiny, which contributes to the development of acne on the face. Acne patients with oily skin may be deterred from using moisturizers out of fear that their condition will worsen, yet therapeutic moisturizers have been shown to maintain hydration and overall integrity of the stratum corneum.
In a study of patient experiences with oily skin, 68% (n=37) of participants said their skin felt unclean, dirty, or grimy. Some participants noted a feeling of having clogged pores or an additional layer of skin, and others reported that their skin felt oily or greasy to the touch. The study also reported that participants with oily skin felt self-conscious, which impacted their daily life. These domains also are affected by having acne.
In the same study, 18% (n=10) of participants reported washing their face 6 to 15 times per day, 50% (n=27) washed their face 3 to 5 times per day, and 42% (n=23) washed their face 1 to 2 times per day. Instead of applying heavy moisturizers, acne patients with oily skin may feel the need to constantly wash their face. Gentle face washing is recommended to help improve and prevent acne, but patients who wash their face excessively are at risk for skin barrier impairment and development of dry skin.
Acne patients can use noncomedogenic moisturizers to prevent and alleviate skin irritation and soothe the skin by slowing the evaporation of water. Many moisturizers on the market claim to be suitable for acne treatment and may independently contribute to improving the signs and symptoms of acne. It is important for dermatologists to direct patients with oily skin to oil-free moisturizers containing ingredients such as dimethicone, which is known to reduce transepidermal water loss without a greasy feel and contains both occlusive and emollient properties. Dimethicone is suitable for use in patients with acne and sensitive skin and is noncomedogenic and hypoallergenic. Many oil-free moisturizers also contain certain metals and botanical extracts, such as aloe vera and witch hazel, that are known to have anti-inflammatory and skin-soothing properties. Some liquid face cleansers also moisturize, which may be all that is needed in patients with oily skin.
It also is important to inform patients with oily skin that common acne treatments such as benzoyl peroxide, retinoids, salicylic acid, and oral isotretinoin commonly cause dry skin or irritation, leading to barrier disruption in the stratum corneum and subsequently causing increased transepidermal water loss and inflammation. Concomitant use of noncomedogenic moisturizers can enhance treatment efficacy, alleviate dryness, and improve skin comfort in acne patients who are taking these medications.
Expert Commentary
An often forgotten element of acne vulgaris is that it is in fact a disease of barrier dysfunction and disruption. As mentioned above, many of the medications used to treat this chronic inflammatory disease are either directly cytotoxic to keratinocytes (benzoyl peroxide) or alter the thickness and composition of the stratum corneum (retinoids), impairing its protective functions. The inflammatory cascade associated with acne itself can impair the barrier, synergizing with the array of aforementioned medications. Both etiological factors disrupt an often overlooked yet crucial component of the skin barrier, the cutaneous microbiota. The altered landscape, or petri dish if you will, unhinges the balance between the >500 species of organisms living in harmony on the skin, decreasing bacterial diversity and facilitating the overgrowth of specific organisms, here specifically certain types of Propionibacterium acnes, which contribute to the ongoing inflammatory cascade. If that's not enough, sebum, which is certainly in excess in acne, contributes very little to barrier function and skin hydration but can be used to cause a different form of disruption by P acnes, which when converted into short-chain fatty acids can impair cutaneous immune tolerance ultimately creating, you guessed it, more inflammation (thank Dr. Rich Gallo for tying this all together). All in all, the barrier is a mess, highlighting the need for barrier repair with a moisturizer to restore the "balance" on every level: Repair and replace the stratum corneum, restore the tools for the right bacteria to grow (water, carbs, lipids, etc). Moisturizers are a must in acne!
—Adam Friedman, MD (Washington, DC)
Arbuckle R, Atkinson MJ, Clark M, et al. Patient experiences with oily skin: the qualitative development of content for two new patient reported outcome questionnaires [published online October 16, 2008]. Health Qual Life Outcomes. 2008;6:80.
Bikowski J. The use of therapeutic moisturizers in various dermatologic disorders. Cutis. 2001;68(suppl 5):3-11.
Chularojanamontri L, Tuchinda P, Kulthanan K, et al. Moisturizers for acne: what are their constituents? J Clin Aesthet Dermatol. 2014;7:36-44.
Goodman G. Cleansing and moisturizing in acne patients. Am J Clin Dermatol. 2009;10(suppl 1):1-6.
Isoda K, Seki T, Inoue Y, et al. Efficacy of the combined use of a facial cleanser and moisturizers for the care of mild acne patients with sensitive skin [published online December 6, 2014]. J Dermatol. 2015;42:181-188.
Arbuckle R, Atkinson MJ, Clark M, et al. Patient experiences with oily skin: the qualitative development of content for two new patient reported outcome questionnaires [published online October 16, 2008]. Health Qual Life Outcomes. 2008;6:80.
Bikowski J. The use of therapeutic moisturizers in various dermatologic disorders. Cutis. 2001;68(suppl 5):3-11.
Chularojanamontri L, Tuchinda P, Kulthanan K, et al. Moisturizers for acne: what are their constituents? J Clin Aesthet Dermatol. 2014;7:36-44.
Goodman G. Cleansing and moisturizing in acne patients. Am J Clin Dermatol. 2009;10(suppl 1):1-6.
Isoda K, Seki T, Inoue Y, et al. Efficacy of the combined use of a facial cleanser and moisturizers for the care of mild acne patients with sensitive skin [published online December 6, 2014]. J Dermatol. 2015;42:181-188.
Living With Psoriasis: How the Disease Impacts the Daily Activities of Patients
Psoriasis impacts the ability to perform activities, causes embarrassment and social discrimination, and leads to a severe emotional impact in both adult and pediatric patients, according to a public meeting hosted by the US Food and Drug Administration (FDA) to hear patient perspectives. A common source of distress in daily life among psoriasis patients was the lack of understanding of the disease in the general population with wrongful concerns that psoriasis is infectious or contagious.
Approximately 70 psoriasis patients or patient representatives attended the meeting in person and others attended through a live webcast. The impact of psoriasis on daily life was underscored throughout the meeting. Daily activities impacted by psoriasis included physical limitations such as an inability to participate in sports among children due to cracking of the hands and feet, or the impracticability of managing a household or going to work among adults. The inconsistency and unpredictability of the condition led patients to be viewed as unreliable. One participant explained, “If you join a team you can play this week but you can’t play next week.”
Patients and their loved ones often experienced embarrassment and social discrimination. A caregiver stated, “Specifically to a child, psoriasis means something different. It means hiding. It means feeling ashamed and it means being ashamed, and it means thinking twice before being yourself. No child should have to think twice before learning to express themselves.” Social isolation and bullying also were prominent in children, mostly because an uniformed parent or classmate did not understand the disease process.
These effects on the daily life of psoriasis patients often led to a severe emotional impact and social isolation. At a young age, psoriasis can have a devastating social and emotional toll. One caregiver shared that his/her child admitted to having thoughts of suicide. The FDA asked how many participants missed days from work and school because of the emotional toll of their psoriasis symptoms and the majority of participants raised their hands. Several participants also indicated that they had sought treatment for depression and anxiety. Many adult patients also noted that they reconsidered having children because of the destructive effects psoriasis has had on multiple generations of family members.
Dermatologists may use these patient insights to monitor the psychological impact of psoriasis on patients and refer them to a psychiatrist or psychologist when needed.
The psoriasis public meeting in March 2016 was the FDA’s 18th patient-focused drug development meeting. The FDA sought this information to have a greater understanding of the burden of psoriasis on patients and the treatments currently used to treat psoriasis and its symptoms. This information will help guide the FDA as they consider future drug approvals.
Psoriasis impacts the ability to perform activities, causes embarrassment and social discrimination, and leads to a severe emotional impact in both adult and pediatric patients, according to a public meeting hosted by the US Food and Drug Administration (FDA) to hear patient perspectives. A common source of distress in daily life among psoriasis patients was the lack of understanding of the disease in the general population with wrongful concerns that psoriasis is infectious or contagious.
Approximately 70 psoriasis patients or patient representatives attended the meeting in person and others attended through a live webcast. The impact of psoriasis on daily life was underscored throughout the meeting. Daily activities impacted by psoriasis included physical limitations such as an inability to participate in sports among children due to cracking of the hands and feet, or the impracticability of managing a household or going to work among adults. The inconsistency and unpredictability of the condition led patients to be viewed as unreliable. One participant explained, “If you join a team you can play this week but you can’t play next week.”
Patients and their loved ones often experienced embarrassment and social discrimination. A caregiver stated, “Specifically to a child, psoriasis means something different. It means hiding. It means feeling ashamed and it means being ashamed, and it means thinking twice before being yourself. No child should have to think twice before learning to express themselves.” Social isolation and bullying also were prominent in children, mostly because an uniformed parent or classmate did not understand the disease process.
These effects on the daily life of psoriasis patients often led to a severe emotional impact and social isolation. At a young age, psoriasis can have a devastating social and emotional toll. One caregiver shared that his/her child admitted to having thoughts of suicide. The FDA asked how many participants missed days from work and school because of the emotional toll of their psoriasis symptoms and the majority of participants raised their hands. Several participants also indicated that they had sought treatment for depression and anxiety. Many adult patients also noted that they reconsidered having children because of the destructive effects psoriasis has had on multiple generations of family members.
Dermatologists may use these patient insights to monitor the psychological impact of psoriasis on patients and refer them to a psychiatrist or psychologist when needed.
The psoriasis public meeting in March 2016 was the FDA’s 18th patient-focused drug development meeting. The FDA sought this information to have a greater understanding of the burden of psoriasis on patients and the treatments currently used to treat psoriasis and its symptoms. This information will help guide the FDA as they consider future drug approvals.
Psoriasis impacts the ability to perform activities, causes embarrassment and social discrimination, and leads to a severe emotional impact in both adult and pediatric patients, according to a public meeting hosted by the US Food and Drug Administration (FDA) to hear patient perspectives. A common source of distress in daily life among psoriasis patients was the lack of understanding of the disease in the general population with wrongful concerns that psoriasis is infectious or contagious.
Approximately 70 psoriasis patients or patient representatives attended the meeting in person and others attended through a live webcast. The impact of psoriasis on daily life was underscored throughout the meeting. Daily activities impacted by psoriasis included physical limitations such as an inability to participate in sports among children due to cracking of the hands and feet, or the impracticability of managing a household or going to work among adults. The inconsistency and unpredictability of the condition led patients to be viewed as unreliable. One participant explained, “If you join a team you can play this week but you can’t play next week.”
Patients and their loved ones often experienced embarrassment and social discrimination. A caregiver stated, “Specifically to a child, psoriasis means something different. It means hiding. It means feeling ashamed and it means being ashamed, and it means thinking twice before being yourself. No child should have to think twice before learning to express themselves.” Social isolation and bullying also were prominent in children, mostly because an uniformed parent or classmate did not understand the disease process.
These effects on the daily life of psoriasis patients often led to a severe emotional impact and social isolation. At a young age, psoriasis can have a devastating social and emotional toll. One caregiver shared that his/her child admitted to having thoughts of suicide. The FDA asked how many participants missed days from work and school because of the emotional toll of their psoriasis symptoms and the majority of participants raised their hands. Several participants also indicated that they had sought treatment for depression and anxiety. Many adult patients also noted that they reconsidered having children because of the destructive effects psoriasis has had on multiple generations of family members.
Dermatologists may use these patient insights to monitor the psychological impact of psoriasis on patients and refer them to a psychiatrist or psychologist when needed.
The psoriasis public meeting in March 2016 was the FDA’s 18th patient-focused drug development meeting. The FDA sought this information to have a greater understanding of the burden of psoriasis on patients and the treatments currently used to treat psoriasis and its symptoms. This information will help guide the FDA as they consider future drug approvals.
Ultrasound-Guided Percutaneous Repair of Medial Patellofemoral Ligament: Surgical Technique and Outcomes
Take-Home Points
- Use ultrasound to identify integrity and location of MPFL tear.
- Anatomic repair allows native tissue to reintegrate into bone.
- Repairs done early can prevent complications of recurrent instability.
- Repair maintains biological and proprioceptive qualities of tissue.
- 10Ultrasound-guided percutaneous repair is quick and effective.
The medial patellofemoral ligament (MPFL) is the primary passive restraint to lateral patellar excursion1-5 and helps control patellar tilt and rotation.6,7 More than 90% of lateral patellar dislocations cause the MPFL to rupture, and roughly 90% of these detachments involve the femoral insertion.4 Ensuing patellar instability often results from MPFL insufficiency. It has been suggested that re-creating the anatomy and functionality of this ligament is of utmost importance in restoring normal patellar biomechanics.1-5,7,8
Anatomical risk factors for recurrent patellar instability include patella alta, increased tibial tuberosity-trochlear groove (TT-TG) distance, trochlear dysplasia, and torsional abnormalities.1-4,6 A medial reefing technique with a lateral tissue release traditionally was used to restore proper kinematics, but was shown to have associated postoperative issues.9
Methods
Patient Demographics
Dr. Hirahara developed this technique in 2013 and performed it 11 times between 2013 and 2016. Of the 11 patients, 1 was excluded from our retrospective analysis because of trochlear dysplasia, now considered a relative contraindication. Of the remaining 10 patients, 5 (50%) had the repair performed on the right knee. Eight patients (80%) were female. Mean (SD) age was 17.21 (3.53) years. One patient had concurrent femur- and patella-side detachments; otherwise, 6 (60%) of 10 repairs were performed exclusively at the patella. We grade patellar instability according to amount of glide based on patellar width and quadrants. Normal lateral displacement was usually 1 to 2 quadrants of lateral glide relative to the contralateral side. Before surgery, 6 (60%) of the 10 patients presented with lateral glide of 3 quadrants, and 3 (30%) presented with lateral glide of 4 quadrants. All had patellar instability apprehension on physical examination.
Surgical Indications
Before surgery, MPFL integrity is determined by ultrasound evaluation. Repair is considered if the MPFL has a femur- or patella-side tear and is of adequate quantity and quality, and if there are minimal or no arthritic changes (Table 2).
Surgical Technique
The patient is brought to the operating room and placed supine. Patellar stability of the affected knee is assessed and compared with that of the contralateral side with patellar glide. The knee is prepared and draped in usual sterile fashion. With the knee flexed at 90º, a tourniquet is inflated. Diagnostic arthroscopy is performed with standard anteromedial and anterolateral portals, and, if necessary, arthroscopic procedures are performed.
Femoral Attachment Repair
With the leg in extension, ultrasound is used to identify the tear at the femoral attachment (watch part 1 of the video). A spinal needle is placed at the femoral insertion, typically just anterior and distal to the adductor tubercle (Figure 4).10
Patellar Attachment Repair
With the leg in extension, ultrasound is used to identify where the MPFL is detached from the patella (watch part 2 of the video). A spinal needle is placed at the detachment site (Figure 5). A scalpel is used to make a 1-cm incision down to the patella.
In this description, we showcase knotless and knotted techniques for each repair site. Either method is appropriate for the 2 repair sites. Owing to the superficial nature of the attachment sites—they may have very little fat, particularly at the patella—knot stacks are more prominent, can be felt after surgery, and have the potential to irritate surrounding tissues. Therefore, we prefer knotless fixation for both sites.
Rehabilitation
Rehabilitation after MPFL repair is much like rehabilitation after quadriceps tendon repair. The patient is locked in a brace in full extension when up and moving. Early weight-bearing and minimal use of assistive devices (crutches) are allowed because, when the leg is in full extension, there is no tension at the repair sites. Rehabilitation begins within 1 week, and normal daily function is quickly attained. The protocol emphasizes pain-free motion and suitable patellar mobility, and allows the immobilizing brace to be unlocked for exercise and sitting. During the first 4 weeks, quadriceps activation is limited; progression to full ROM occurs by 4 to 6 weeks. During the strengthening phase, loading the knee in early flexion should be avoided. Return to heavy lifting, physical activity, and sports is delayed until after 6 months in order to allow the construct to mature and integrate. Once the patient has satisfied all the strength, ROM, and functional outcome measurements, a brace is no longer required during sports and normal activity.
Results
Mean tourniquet time for each procedure, which includes diagnostic arthroscopy and ultrasound-guided percutaneous repair, was 26.9 minutes.
Discussion
Conservative management typically is recommended for acute patellar dislocations. In the event of failed conservative management or chronic patellar instability, surgical intervention is indicated. Studies have found that conservative management has recurrent-dislocation rates of 35% at 3-year follow-up and 73% at 6-year follow-up, and recurrent dislocations significantly increase patients’ risk of developing chondral and bony damage.13 MPFL repair is designed to restore proper patellar tracking and kinematics while maintaining the anatomical tissue. Lateral patellar dislocations often cause the MPFL to rupture; tears are reported in more than 90% of incidents.4 The significant rate indicates that, even after a single patellar dislocation, the MPFL should be evaluated. The MPFL contributes 50% to 60% of the medial stabilizing force during patellar tracking1,7,14 and is the primary restraint to lateral patellar excursion and excessive patellar tilt and rotation.1-5 Its absence plays a key role in recurrent lateral patellar instability. With this structure being so important, proper identification and intervention are vital. Studies have established that redislocation rates are significantly higher for nonoperatively (vs operatively) treated primary patellar dislocations.13 Simple and accurate percutaneous repair of the MPFL should be performed early to avoid the long-term complications of recurrent instability that could damage the cartilage and bone of the patella and trochlea.
The primary advantage of this technique is its novel use of musculoskeletal ultrasound to accurately identify anatomy and pathology and the placement of anatomical repairs. Accurate preoperative and intraoperative assessment of MPFL anatomy is vital to the success of a procedure. Descriptions of MPFL anatomy suggest discrepancies in the exact locations of the femoral and patellar attachments.2,5,7,10,12,15,16 Tanaka5 noted that, even within paired knees, there was “marked variability” in the MPFL insertions. McCarthy and colleagues10 contended the femoral attachment of the MPFL is just anterior and distal to the adductor tubercle, the landmark addressed in this technique. Steensen and colleagues16 described this attachment site as being statistically the “single most important point affecting isometry” of the MPFL. Sallay and colleagues4 asserted that an overwhelming majority of MPFL tears (87%) occur at the adductor tubercle. The variable distribution of tear locations and the importance of re-creating patient anatomy further highlight the need for individualized treatment, which is afforded by ultrasound. Fluoroscopy has been inadequate in identifying MPFL anatomy; this modality is difficult, cumbersome, inaccurate, and inconsistent.11,12 Conversely, ultrasound provides real-time visualization of anatomy and allows for precise identification of MPFL attachments and accurate placement of suture anchors for repair during surgery (Figures 3, 4).
For femur-side and patella-side tears, repairs can and should be performed. For midsubstance tears, however, repair is not feasible, and reconstruction is appropriate. MPFL repair is superior to reconstruction in several ways. Repair is a simple percutaneous procedure that had a mean tourniquet time of 26.9 minutes in this study. For tissue that is quantitatively and qualitatively adequate, repair allows the structure to reintegrate into bone without total reconstruction. In the event of multiple tears, the percutaneous procedure allows for repair of each attachment. As the MPFL sits between the second and third tissue layers of the medial knee, reconstruction can be difficult and invasive and require establishment of a between-layers plane, which can disrupt adjacent tissue.4,7,17 Repair also maintains native tissue and its neurovascular and proprioceptive properties.
Reconstruction of the MPFL has become the gold-standard treatment for recurrent lateral patellar instability but has limitations and complications.3,7,12,17 Reconstruction techniques use either surface anatomy palpation (requiring large incisions) or fluoroscopy to identify tunnel placement locations, and accurate placement has often been difficult and inconsistent. Our repair technique has several advantages over reconstruction. It does not burn any bridges; it allows for subsequent reconstruction. It does not require a graft and, using small suture anchors instead of large sockets and anchors, involves less bone loss. It also allows for early repair of tears—patients can return to activities, sports, and work quicker—and avoids the risk of chondral and bony damage with recurrent dislocations. According to our review of the MPFL repairs performed by Dr. Hirahara starting in 2013, the procedure is quick and successful and has outstanding outcomes.
Another treatment option for recurrent lateral patellar instability combines reefing of the medial patellofemoral tissues with a lateral release. This combination has had several postoperative complications and is no longer indicated.9 TT transfer and trochleoplasty procedures have been developed to address different aspects of patellar instability, increased TT-TG distance, and dysplastic trochlea (Table 2). Both types of procedures are highly invasive and difficult to perform, requiring technical expertise. They are best used when warranted by the anatomy, but this is uncommon. The technique we have presented allows for easy and reliable repair of dislocations in the absence of associated pathology that would require larger, more complex surgery. The ease of use and accuracy of musculoskeletal ultrasound make this technique superior to others.
Conclusion
The MPFL is a vital static stabilizer of the patella and as such should be evaluated in the setting of patellar injury. The novel preoperative and intraoperative use of musculoskeletal ultrasound described in this article allows for easy real-time identification of the MPFL and simple and accurate percutaneous repair of torn structures. Nonoperative treatments of acute patellar dislocations have higher rates of recurrent dislocations, which put patella and trochlea at risk for bony and chondral damage. Given appropriate tear location and tissue quality, repairs should be considered early and before reconstruction. To our knowledge, a reliable, easily reproducible MPFL repair was not described until now. We have reported on use of such a technique and on its promising patient outcomes, which should be considered when addressing MPFL injuries.
Am J Orthop. 2017;46(3):152-157. Copyright Frontline Medical Communications Inc. 2017. All rights reserved.
1. Desio SM, Burks RT, Bachus KN. Soft tissue restraints to lateral patellar translation in the human knee. Am J Sports Med. 1998;26(1):59-65.
2. Nomura E, Inoue M, Osada N. Anatomical analysis of the medial patellofemoral ligament of the knee, especially the femoral attachment. Knee Surg Sports Traumatol Arthrosc. 2005;13(7):510-515.
3. Petri M, Ettinger M, Stuebig T, et al. Current concepts for patellar dislocation. Arch Trauma Res. 2015;4(3):e29301.
4. Sallay PI, Poggi J, Speer KP, Garrett WE. Acute dislocation of the patella. A correlative pathoanatomic study. Am J Sports Med. 1996;24(1):52-60.
5. Tanaka MJ. Variability in the patellar attachment of the medial patellofemoral ligament. Arthroscopy. 2016;32(8):1667-1670.
6. Philippot R, Boyer B, Testa R, Farizon F, Moyen B. The role of the medial ligamentous structures on patellar tracking during knee flexion. Knee Surg Sports Traumatol Arthrosc. 2012;20(2):331-336.
7. Philippot R, Chouteau J, Wegrzyn J, Testa R, Fessy MH, Moyen B. Medial patellofemoral ligament anatomy: implications for its surgical reconstruction. Knee Surg Sports Traumatol Arthrosc. 2009;17(5):475-479.
8. Ahmad CS, Stein BE, Matuz D, Henry JH. Immediate surgical repair of the medial patellar stabilizers for acute patellar dislocation. A review of eight cases. Am J Sports Med. 2000;28(6):804-810.
9. Song GY, Hong L, Zhang H, Zhang J, Li Y, Feng H. Iatrogenic medial patellar instability following lateral retinacular release of the knee joint. Knee Surg Sports Traumatol Arthrosc. 2016;24(9):2825-2830.
10. McCarthy M, Ridley TJ, Bollier M, Wolf B, Albright J, Amendola A. Femoral tunnel placement in medial patellofemoral ligament reconstruction. Iowa Orthop J. 2013;33:58-63.
11. Redfern J, Kamath G, Burks R. Anatomical confirmation of the use of radiographic landmarks in medial patellofemoral ligament reconstruction. Am J Sports Med. 2010;38(2):293-297.
12. Barnett AJ, Howells NR, Burston BJ, Ansari A, Clark D, Eldridge JD. Radiographic landmarks for tunnel placement in reconstruction of the medial patellofemoral ligament. Knee Surg Sports Traumatol Arthrosc. 2012;20(12):2380-2384.
13. Regalado G, Lintula H, Kokki H, Kröger H, Väätäinen U, Eskelinen M. Six-year outcome after non-surgical versus surgical treatment of acute primary patellar dislocation in adolescents: a prospective randomized trial. Knee Surg Sports Traumatol Arthrosc. 2016;24(1):6-11.
14. Sandmeier RH, Burks RT, Bachus KN, Billings A. The effect of reconstruction of the medial patellofemoral ligament on patellar tracking. Am J Sports Med. 2000;28(3):345-349.
15. Baldwin JL. The anatomy of the medial patellofemoral ligament. Am J Sports Med. 2009;37(12):2355-2361.
16. Steensen RN, Dopirak RM, McDonald WG 3rd. The anatomy and isometry of the medial patellofemoral ligament: implications for reconstruction. Am J Sports Med. 2004;32(6):1509-1513.
17. Godin JA, Karas V, Visgauss JD, Garrett WE. Medial patellofemoral ligament reconstruction using a femoral loop button fixation technique. Arthrosc Tech. 2015;4(5):e601-e607.
Take-Home Points
- Use ultrasound to identify integrity and location of MPFL tear.
- Anatomic repair allows native tissue to reintegrate into bone.
- Repairs done early can prevent complications of recurrent instability.
- Repair maintains biological and proprioceptive qualities of tissue.
- 10Ultrasound-guided percutaneous repair is quick and effective.
The medial patellofemoral ligament (MPFL) is the primary passive restraint to lateral patellar excursion1-5 and helps control patellar tilt and rotation.6,7 More than 90% of lateral patellar dislocations cause the MPFL to rupture, and roughly 90% of these detachments involve the femoral insertion.4 Ensuing patellar instability often results from MPFL insufficiency. It has been suggested that re-creating the anatomy and functionality of this ligament is of utmost importance in restoring normal patellar biomechanics.1-5,7,8
Anatomical risk factors for recurrent patellar instability include patella alta, increased tibial tuberosity-trochlear groove (TT-TG) distance, trochlear dysplasia, and torsional abnormalities.1-4,6 A medial reefing technique with a lateral tissue release traditionally was used to restore proper kinematics, but was shown to have associated postoperative issues.9
Methods
Patient Demographics
Dr. Hirahara developed this technique in 2013 and performed it 11 times between 2013 and 2016. Of the 11 patients, 1 was excluded from our retrospective analysis because of trochlear dysplasia, now considered a relative contraindication. Of the remaining 10 patients, 5 (50%) had the repair performed on the right knee. Eight patients (80%) were female. Mean (SD) age was 17.21 (3.53) years. One patient had concurrent femur- and patella-side detachments; otherwise, 6 (60%) of 10 repairs were performed exclusively at the patella. We grade patellar instability according to amount of glide based on patellar width and quadrants. Normal lateral displacement was usually 1 to 2 quadrants of lateral glide relative to the contralateral side. Before surgery, 6 (60%) of the 10 patients presented with lateral glide of 3 quadrants, and 3 (30%) presented with lateral glide of 4 quadrants. All had patellar instability apprehension on physical examination.
Surgical Indications
Before surgery, MPFL integrity is determined by ultrasound evaluation. Repair is considered if the MPFL has a femur- or patella-side tear and is of adequate quantity and quality, and if there are minimal or no arthritic changes (Table 2).
Surgical Technique
The patient is brought to the operating room and placed supine. Patellar stability of the affected knee is assessed and compared with that of the contralateral side with patellar glide. The knee is prepared and draped in usual sterile fashion. With the knee flexed at 90º, a tourniquet is inflated. Diagnostic arthroscopy is performed with standard anteromedial and anterolateral portals, and, if necessary, arthroscopic procedures are performed.
Femoral Attachment Repair
With the leg in extension, ultrasound is used to identify the tear at the femoral attachment (watch part 1 of the video). A spinal needle is placed at the femoral insertion, typically just anterior and distal to the adductor tubercle (Figure 4).10
Patellar Attachment Repair
With the leg in extension, ultrasound is used to identify where the MPFL is detached from the patella (watch part 2 of the video). A spinal needle is placed at the detachment site (Figure 5). A scalpel is used to make a 1-cm incision down to the patella.
In this description, we showcase knotless and knotted techniques for each repair site. Either method is appropriate for the 2 repair sites. Owing to the superficial nature of the attachment sites—they may have very little fat, particularly at the patella—knot stacks are more prominent, can be felt after surgery, and have the potential to irritate surrounding tissues. Therefore, we prefer knotless fixation for both sites.
Rehabilitation
Rehabilitation after MPFL repair is much like rehabilitation after quadriceps tendon repair. The patient is locked in a brace in full extension when up and moving. Early weight-bearing and minimal use of assistive devices (crutches) are allowed because, when the leg is in full extension, there is no tension at the repair sites. Rehabilitation begins within 1 week, and normal daily function is quickly attained. The protocol emphasizes pain-free motion and suitable patellar mobility, and allows the immobilizing brace to be unlocked for exercise and sitting. During the first 4 weeks, quadriceps activation is limited; progression to full ROM occurs by 4 to 6 weeks. During the strengthening phase, loading the knee in early flexion should be avoided. Return to heavy lifting, physical activity, and sports is delayed until after 6 months in order to allow the construct to mature and integrate. Once the patient has satisfied all the strength, ROM, and functional outcome measurements, a brace is no longer required during sports and normal activity.
Results
Mean tourniquet time for each procedure, which includes diagnostic arthroscopy and ultrasound-guided percutaneous repair, was 26.9 minutes.
Discussion
Conservative management typically is recommended for acute patellar dislocations. In the event of failed conservative management or chronic patellar instability, surgical intervention is indicated. Studies have found that conservative management has recurrent-dislocation rates of 35% at 3-year follow-up and 73% at 6-year follow-up, and recurrent dislocations significantly increase patients’ risk of developing chondral and bony damage.13 MPFL repair is designed to restore proper patellar tracking and kinematics while maintaining the anatomical tissue. Lateral patellar dislocations often cause the MPFL to rupture; tears are reported in more than 90% of incidents.4 The significant rate indicates that, even after a single patellar dislocation, the MPFL should be evaluated. The MPFL contributes 50% to 60% of the medial stabilizing force during patellar tracking1,7,14 and is the primary restraint to lateral patellar excursion and excessive patellar tilt and rotation.1-5 Its absence plays a key role in recurrent lateral patellar instability. With this structure being so important, proper identification and intervention are vital. Studies have established that redislocation rates are significantly higher for nonoperatively (vs operatively) treated primary patellar dislocations.13 Simple and accurate percutaneous repair of the MPFL should be performed early to avoid the long-term complications of recurrent instability that could damage the cartilage and bone of the patella and trochlea.
The primary advantage of this technique is its novel use of musculoskeletal ultrasound to accurately identify anatomy and pathology and the placement of anatomical repairs. Accurate preoperative and intraoperative assessment of MPFL anatomy is vital to the success of a procedure. Descriptions of MPFL anatomy suggest discrepancies in the exact locations of the femoral and patellar attachments.2,5,7,10,12,15,16 Tanaka5 noted that, even within paired knees, there was “marked variability” in the MPFL insertions. McCarthy and colleagues10 contended the femoral attachment of the MPFL is just anterior and distal to the adductor tubercle, the landmark addressed in this technique. Steensen and colleagues16 described this attachment site as being statistically the “single most important point affecting isometry” of the MPFL. Sallay and colleagues4 asserted that an overwhelming majority of MPFL tears (87%) occur at the adductor tubercle. The variable distribution of tear locations and the importance of re-creating patient anatomy further highlight the need for individualized treatment, which is afforded by ultrasound. Fluoroscopy has been inadequate in identifying MPFL anatomy; this modality is difficult, cumbersome, inaccurate, and inconsistent.11,12 Conversely, ultrasound provides real-time visualization of anatomy and allows for precise identification of MPFL attachments and accurate placement of suture anchors for repair during surgery (Figures 3, 4).
For femur-side and patella-side tears, repairs can and should be performed. For midsubstance tears, however, repair is not feasible, and reconstruction is appropriate. MPFL repair is superior to reconstruction in several ways. Repair is a simple percutaneous procedure that had a mean tourniquet time of 26.9 minutes in this study. For tissue that is quantitatively and qualitatively adequate, repair allows the structure to reintegrate into bone without total reconstruction. In the event of multiple tears, the percutaneous procedure allows for repair of each attachment. As the MPFL sits between the second and third tissue layers of the medial knee, reconstruction can be difficult and invasive and require establishment of a between-layers plane, which can disrupt adjacent tissue.4,7,17 Repair also maintains native tissue and its neurovascular and proprioceptive properties.
Reconstruction of the MPFL has become the gold-standard treatment for recurrent lateral patellar instability but has limitations and complications.3,7,12,17 Reconstruction techniques use either surface anatomy palpation (requiring large incisions) or fluoroscopy to identify tunnel placement locations, and accurate placement has often been difficult and inconsistent. Our repair technique has several advantages over reconstruction. It does not burn any bridges; it allows for subsequent reconstruction. It does not require a graft and, using small suture anchors instead of large sockets and anchors, involves less bone loss. It also allows for early repair of tears—patients can return to activities, sports, and work quicker—and avoids the risk of chondral and bony damage with recurrent dislocations. According to our review of the MPFL repairs performed by Dr. Hirahara starting in 2013, the procedure is quick and successful and has outstanding outcomes.
Another treatment option for recurrent lateral patellar instability combines reefing of the medial patellofemoral tissues with a lateral release. This combination has had several postoperative complications and is no longer indicated.9 TT transfer and trochleoplasty procedures have been developed to address different aspects of patellar instability, increased TT-TG distance, and dysplastic trochlea (Table 2). Both types of procedures are highly invasive and difficult to perform, requiring technical expertise. They are best used when warranted by the anatomy, but this is uncommon. The technique we have presented allows for easy and reliable repair of dislocations in the absence of associated pathology that would require larger, more complex surgery. The ease of use and accuracy of musculoskeletal ultrasound make this technique superior to others.
Conclusion
The MPFL is a vital static stabilizer of the patella and as such should be evaluated in the setting of patellar injury. The novel preoperative and intraoperative use of musculoskeletal ultrasound described in this article allows for easy real-time identification of the MPFL and simple and accurate percutaneous repair of torn structures. Nonoperative treatments of acute patellar dislocations have higher rates of recurrent dislocations, which put patella and trochlea at risk for bony and chondral damage. Given appropriate tear location and tissue quality, repairs should be considered early and before reconstruction. To our knowledge, a reliable, easily reproducible MPFL repair was not described until now. We have reported on use of such a technique and on its promising patient outcomes, which should be considered when addressing MPFL injuries.
Am J Orthop. 2017;46(3):152-157. Copyright Frontline Medical Communications Inc. 2017. All rights reserved.
Take-Home Points
- Use ultrasound to identify integrity and location of MPFL tear.
- Anatomic repair allows native tissue to reintegrate into bone.
- Repairs done early can prevent complications of recurrent instability.
- Repair maintains biological and proprioceptive qualities of tissue.
- 10Ultrasound-guided percutaneous repair is quick and effective.
The medial patellofemoral ligament (MPFL) is the primary passive restraint to lateral patellar excursion1-5 and helps control patellar tilt and rotation.6,7 More than 90% of lateral patellar dislocations cause the MPFL to rupture, and roughly 90% of these detachments involve the femoral insertion.4 Ensuing patellar instability often results from MPFL insufficiency. It has been suggested that re-creating the anatomy and functionality of this ligament is of utmost importance in restoring normal patellar biomechanics.1-5,7,8
Anatomical risk factors for recurrent patellar instability include patella alta, increased tibial tuberosity-trochlear groove (TT-TG) distance, trochlear dysplasia, and torsional abnormalities.1-4,6 A medial reefing technique with a lateral tissue release traditionally was used to restore proper kinematics, but was shown to have associated postoperative issues.9
Methods
Patient Demographics
Dr. Hirahara developed this technique in 2013 and performed it 11 times between 2013 and 2016. Of the 11 patients, 1 was excluded from our retrospective analysis because of trochlear dysplasia, now considered a relative contraindication. Of the remaining 10 patients, 5 (50%) had the repair performed on the right knee. Eight patients (80%) were female. Mean (SD) age was 17.21 (3.53) years. One patient had concurrent femur- and patella-side detachments; otherwise, 6 (60%) of 10 repairs were performed exclusively at the patella. We grade patellar instability according to amount of glide based on patellar width and quadrants. Normal lateral displacement was usually 1 to 2 quadrants of lateral glide relative to the contralateral side. Before surgery, 6 (60%) of the 10 patients presented with lateral glide of 3 quadrants, and 3 (30%) presented with lateral glide of 4 quadrants. All had patellar instability apprehension on physical examination.
Surgical Indications
Before surgery, MPFL integrity is determined by ultrasound evaluation. Repair is considered if the MPFL has a femur- or patella-side tear and is of adequate quantity and quality, and if there are minimal or no arthritic changes (Table 2).
Surgical Technique
The patient is brought to the operating room and placed supine. Patellar stability of the affected knee is assessed and compared with that of the contralateral side with patellar glide. The knee is prepared and draped in usual sterile fashion. With the knee flexed at 90º, a tourniquet is inflated. Diagnostic arthroscopy is performed with standard anteromedial and anterolateral portals, and, if necessary, arthroscopic procedures are performed.
Femoral Attachment Repair
With the leg in extension, ultrasound is used to identify the tear at the femoral attachment (watch part 1 of the video). A spinal needle is placed at the femoral insertion, typically just anterior and distal to the adductor tubercle (Figure 4).10
Patellar Attachment Repair
With the leg in extension, ultrasound is used to identify where the MPFL is detached from the patella (watch part 2 of the video). A spinal needle is placed at the detachment site (Figure 5). A scalpel is used to make a 1-cm incision down to the patella.
In this description, we showcase knotless and knotted techniques for each repair site. Either method is appropriate for the 2 repair sites. Owing to the superficial nature of the attachment sites—they may have very little fat, particularly at the patella—knot stacks are more prominent, can be felt after surgery, and have the potential to irritate surrounding tissues. Therefore, we prefer knotless fixation for both sites.
Rehabilitation
Rehabilitation after MPFL repair is much like rehabilitation after quadriceps tendon repair. The patient is locked in a brace in full extension when up and moving. Early weight-bearing and minimal use of assistive devices (crutches) are allowed because, when the leg is in full extension, there is no tension at the repair sites. Rehabilitation begins within 1 week, and normal daily function is quickly attained. The protocol emphasizes pain-free motion and suitable patellar mobility, and allows the immobilizing brace to be unlocked for exercise and sitting. During the first 4 weeks, quadriceps activation is limited; progression to full ROM occurs by 4 to 6 weeks. During the strengthening phase, loading the knee in early flexion should be avoided. Return to heavy lifting, physical activity, and sports is delayed until after 6 months in order to allow the construct to mature and integrate. Once the patient has satisfied all the strength, ROM, and functional outcome measurements, a brace is no longer required during sports and normal activity.
Results
Mean tourniquet time for each procedure, which includes diagnostic arthroscopy and ultrasound-guided percutaneous repair, was 26.9 minutes.
Discussion
Conservative management typically is recommended for acute patellar dislocations. In the event of failed conservative management or chronic patellar instability, surgical intervention is indicated. Studies have found that conservative management has recurrent-dislocation rates of 35% at 3-year follow-up and 73% at 6-year follow-up, and recurrent dislocations significantly increase patients’ risk of developing chondral and bony damage.13 MPFL repair is designed to restore proper patellar tracking and kinematics while maintaining the anatomical tissue. Lateral patellar dislocations often cause the MPFL to rupture; tears are reported in more than 90% of incidents.4 The significant rate indicates that, even after a single patellar dislocation, the MPFL should be evaluated. The MPFL contributes 50% to 60% of the medial stabilizing force during patellar tracking1,7,14 and is the primary restraint to lateral patellar excursion and excessive patellar tilt and rotation.1-5 Its absence plays a key role in recurrent lateral patellar instability. With this structure being so important, proper identification and intervention are vital. Studies have established that redislocation rates are significantly higher for nonoperatively (vs operatively) treated primary patellar dislocations.13 Simple and accurate percutaneous repair of the MPFL should be performed early to avoid the long-term complications of recurrent instability that could damage the cartilage and bone of the patella and trochlea.
The primary advantage of this technique is its novel use of musculoskeletal ultrasound to accurately identify anatomy and pathology and the placement of anatomical repairs. Accurate preoperative and intraoperative assessment of MPFL anatomy is vital to the success of a procedure. Descriptions of MPFL anatomy suggest discrepancies in the exact locations of the femoral and patellar attachments.2,5,7,10,12,15,16 Tanaka5 noted that, even within paired knees, there was “marked variability” in the MPFL insertions. McCarthy and colleagues10 contended the femoral attachment of the MPFL is just anterior and distal to the adductor tubercle, the landmark addressed in this technique. Steensen and colleagues16 described this attachment site as being statistically the “single most important point affecting isometry” of the MPFL. Sallay and colleagues4 asserted that an overwhelming majority of MPFL tears (87%) occur at the adductor tubercle. The variable distribution of tear locations and the importance of re-creating patient anatomy further highlight the need for individualized treatment, which is afforded by ultrasound. Fluoroscopy has been inadequate in identifying MPFL anatomy; this modality is difficult, cumbersome, inaccurate, and inconsistent.11,12 Conversely, ultrasound provides real-time visualization of anatomy and allows for precise identification of MPFL attachments and accurate placement of suture anchors for repair during surgery (Figures 3, 4).
For femur-side and patella-side tears, repairs can and should be performed. For midsubstance tears, however, repair is not feasible, and reconstruction is appropriate. MPFL repair is superior to reconstruction in several ways. Repair is a simple percutaneous procedure that had a mean tourniquet time of 26.9 minutes in this study. For tissue that is quantitatively and qualitatively adequate, repair allows the structure to reintegrate into bone without total reconstruction. In the event of multiple tears, the percutaneous procedure allows for repair of each attachment. As the MPFL sits between the second and third tissue layers of the medial knee, reconstruction can be difficult and invasive and require establishment of a between-layers plane, which can disrupt adjacent tissue.4,7,17 Repair also maintains native tissue and its neurovascular and proprioceptive properties.
Reconstruction of the MPFL has become the gold-standard treatment for recurrent lateral patellar instability but has limitations and complications.3,7,12,17 Reconstruction techniques use either surface anatomy palpation (requiring large incisions) or fluoroscopy to identify tunnel placement locations, and accurate placement has often been difficult and inconsistent. Our repair technique has several advantages over reconstruction. It does not burn any bridges; it allows for subsequent reconstruction. It does not require a graft and, using small suture anchors instead of large sockets and anchors, involves less bone loss. It also allows for early repair of tears—patients can return to activities, sports, and work quicker—and avoids the risk of chondral and bony damage with recurrent dislocations. According to our review of the MPFL repairs performed by Dr. Hirahara starting in 2013, the procedure is quick and successful and has outstanding outcomes.
Another treatment option for recurrent lateral patellar instability combines reefing of the medial patellofemoral tissues with a lateral release. This combination has had several postoperative complications and is no longer indicated.9 TT transfer and trochleoplasty procedures have been developed to address different aspects of patellar instability, increased TT-TG distance, and dysplastic trochlea (Table 2). Both types of procedures are highly invasive and difficult to perform, requiring technical expertise. They are best used when warranted by the anatomy, but this is uncommon. The technique we have presented allows for easy and reliable repair of dislocations in the absence of associated pathology that would require larger, more complex surgery. The ease of use and accuracy of musculoskeletal ultrasound make this technique superior to others.
Conclusion
The MPFL is a vital static stabilizer of the patella and as such should be evaluated in the setting of patellar injury. The novel preoperative and intraoperative use of musculoskeletal ultrasound described in this article allows for easy real-time identification of the MPFL and simple and accurate percutaneous repair of torn structures. Nonoperative treatments of acute patellar dislocations have higher rates of recurrent dislocations, which put patella and trochlea at risk for bony and chondral damage. Given appropriate tear location and tissue quality, repairs should be considered early and before reconstruction. To our knowledge, a reliable, easily reproducible MPFL repair was not described until now. We have reported on use of such a technique and on its promising patient outcomes, which should be considered when addressing MPFL injuries.
Am J Orthop. 2017;46(3):152-157. Copyright Frontline Medical Communications Inc. 2017. All rights reserved.
1. Desio SM, Burks RT, Bachus KN. Soft tissue restraints to lateral patellar translation in the human knee. Am J Sports Med. 1998;26(1):59-65.
2. Nomura E, Inoue M, Osada N. Anatomical analysis of the medial patellofemoral ligament of the knee, especially the femoral attachment. Knee Surg Sports Traumatol Arthrosc. 2005;13(7):510-515.
3. Petri M, Ettinger M, Stuebig T, et al. Current concepts for patellar dislocation. Arch Trauma Res. 2015;4(3):e29301.
4. Sallay PI, Poggi J, Speer KP, Garrett WE. Acute dislocation of the patella. A correlative pathoanatomic study. Am J Sports Med. 1996;24(1):52-60.
5. Tanaka MJ. Variability in the patellar attachment of the medial patellofemoral ligament. Arthroscopy. 2016;32(8):1667-1670.
6. Philippot R, Boyer B, Testa R, Farizon F, Moyen B. The role of the medial ligamentous structures on patellar tracking during knee flexion. Knee Surg Sports Traumatol Arthrosc. 2012;20(2):331-336.
7. Philippot R, Chouteau J, Wegrzyn J, Testa R, Fessy MH, Moyen B. Medial patellofemoral ligament anatomy: implications for its surgical reconstruction. Knee Surg Sports Traumatol Arthrosc. 2009;17(5):475-479.
8. Ahmad CS, Stein BE, Matuz D, Henry JH. Immediate surgical repair of the medial patellar stabilizers for acute patellar dislocation. A review of eight cases. Am J Sports Med. 2000;28(6):804-810.
9. Song GY, Hong L, Zhang H, Zhang J, Li Y, Feng H. Iatrogenic medial patellar instability following lateral retinacular release of the knee joint. Knee Surg Sports Traumatol Arthrosc. 2016;24(9):2825-2830.
10. McCarthy M, Ridley TJ, Bollier M, Wolf B, Albright J, Amendola A. Femoral tunnel placement in medial patellofemoral ligament reconstruction. Iowa Orthop J. 2013;33:58-63.
11. Redfern J, Kamath G, Burks R. Anatomical confirmation of the use of radiographic landmarks in medial patellofemoral ligament reconstruction. Am J Sports Med. 2010;38(2):293-297.
12. Barnett AJ, Howells NR, Burston BJ, Ansari A, Clark D, Eldridge JD. Radiographic landmarks for tunnel placement in reconstruction of the medial patellofemoral ligament. Knee Surg Sports Traumatol Arthrosc. 2012;20(12):2380-2384.
13. Regalado G, Lintula H, Kokki H, Kröger H, Väätäinen U, Eskelinen M. Six-year outcome after non-surgical versus surgical treatment of acute primary patellar dislocation in adolescents: a prospective randomized trial. Knee Surg Sports Traumatol Arthrosc. 2016;24(1):6-11.
14. Sandmeier RH, Burks RT, Bachus KN, Billings A. The effect of reconstruction of the medial patellofemoral ligament on patellar tracking. Am J Sports Med. 2000;28(3):345-349.
15. Baldwin JL. The anatomy of the medial patellofemoral ligament. Am J Sports Med. 2009;37(12):2355-2361.
16. Steensen RN, Dopirak RM, McDonald WG 3rd. The anatomy and isometry of the medial patellofemoral ligament: implications for reconstruction. Am J Sports Med. 2004;32(6):1509-1513.
17. Godin JA, Karas V, Visgauss JD, Garrett WE. Medial patellofemoral ligament reconstruction using a femoral loop button fixation technique. Arthrosc Tech. 2015;4(5):e601-e607.
1. Desio SM, Burks RT, Bachus KN. Soft tissue restraints to lateral patellar translation in the human knee. Am J Sports Med. 1998;26(1):59-65.
2. Nomura E, Inoue M, Osada N. Anatomical analysis of the medial patellofemoral ligament of the knee, especially the femoral attachment. Knee Surg Sports Traumatol Arthrosc. 2005;13(7):510-515.
3. Petri M, Ettinger M, Stuebig T, et al. Current concepts for patellar dislocation. Arch Trauma Res. 2015;4(3):e29301.
4. Sallay PI, Poggi J, Speer KP, Garrett WE. Acute dislocation of the patella. A correlative pathoanatomic study. Am J Sports Med. 1996;24(1):52-60.
5. Tanaka MJ. Variability in the patellar attachment of the medial patellofemoral ligament. Arthroscopy. 2016;32(8):1667-1670.
6. Philippot R, Boyer B, Testa R, Farizon F, Moyen B. The role of the medial ligamentous structures on patellar tracking during knee flexion. Knee Surg Sports Traumatol Arthrosc. 2012;20(2):331-336.
7. Philippot R, Chouteau J, Wegrzyn J, Testa R, Fessy MH, Moyen B. Medial patellofemoral ligament anatomy: implications for its surgical reconstruction. Knee Surg Sports Traumatol Arthrosc. 2009;17(5):475-479.
8. Ahmad CS, Stein BE, Matuz D, Henry JH. Immediate surgical repair of the medial patellar stabilizers for acute patellar dislocation. A review of eight cases. Am J Sports Med. 2000;28(6):804-810.
9. Song GY, Hong L, Zhang H, Zhang J, Li Y, Feng H. Iatrogenic medial patellar instability following lateral retinacular release of the knee joint. Knee Surg Sports Traumatol Arthrosc. 2016;24(9):2825-2830.
10. McCarthy M, Ridley TJ, Bollier M, Wolf B, Albright J, Amendola A. Femoral tunnel placement in medial patellofemoral ligament reconstruction. Iowa Orthop J. 2013;33:58-63.
11. Redfern J, Kamath G, Burks R. Anatomical confirmation of the use of radiographic landmarks in medial patellofemoral ligament reconstruction. Am J Sports Med. 2010;38(2):293-297.
12. Barnett AJ, Howells NR, Burston BJ, Ansari A, Clark D, Eldridge JD. Radiographic landmarks for tunnel placement in reconstruction of the medial patellofemoral ligament. Knee Surg Sports Traumatol Arthrosc. 2012;20(12):2380-2384.
13. Regalado G, Lintula H, Kokki H, Kröger H, Väätäinen U, Eskelinen M. Six-year outcome after non-surgical versus surgical treatment of acute primary patellar dislocation in adolescents: a prospective randomized trial. Knee Surg Sports Traumatol Arthrosc. 2016;24(1):6-11.
14. Sandmeier RH, Burks RT, Bachus KN, Billings A. The effect of reconstruction of the medial patellofemoral ligament on patellar tracking. Am J Sports Med. 2000;28(3):345-349.
15. Baldwin JL. The anatomy of the medial patellofemoral ligament. Am J Sports Med. 2009;37(12):2355-2361.
16. Steensen RN, Dopirak RM, McDonald WG 3rd. The anatomy and isometry of the medial patellofemoral ligament: implications for reconstruction. Am J Sports Med. 2004;32(6):1509-1513.
17. Godin JA, Karas V, Visgauss JD, Garrett WE. Medial patellofemoral ligament reconstruction using a femoral loop button fixation technique. Arthrosc Tech. 2015;4(5):e601-e607.
Twitter Q&A Transcript April 18, 2017
On April 18, 2017, Gary Goldenberg, MD, took over the @CutisJournal Twitter account for 1 hour to answer reader questions about updates in cosmetic dermatology. Below is a transcript of the Twitter Q&A session (#AskCutisJournal).
@carriekovarik
What can help #hyperpigmentation from prior #HIV related #prurigo in darker pts since this is a stigma of disease? #AskCutisJournal
@carriekovarik Aside from lightening agents & moisturizers, success with #microneedling. Go low & slow 2 prevent more hyperpigmentation.
RELATED ARTICLE:
Microneedling Therapy With and Without Platelet-Rich Plasma
@NailDoc12
What's new for treatment of melasma?
@NailDoc12 I recommend combo of prevention, sunscreen & lightening cream w/ microneedling w/ PRP or ktp laser such as #Cutera #ExcelV.
RELATED ARTICLE:
Dermatologists Weigh in on Skin-Lightening Agents
@NailDoc12
Is there good evidence for use of PRP for skin aging?
@NailDoc12 Pts swear by #PRP. Use after fillers/Botox & microneedling or laser. Pts say it improves skin quality, gives it a "glow" (1/2)
@NailDoc12 Growth factors in PRP improve tissue vascularity & help cells regenerate & normalize. Helps w/wound healing post procedure (2/2)
RELATED VIDEO:
Microneedling With Platelet-Rich Plasma
@anthonymrossi
@CutisJournal #AskCutisJournal What is your approach to global facial rejuvenation? Do you like to start with injectables or laser?
@anthonymrossi Total rejuvenation is just that. I rec combo tx 2 improve skin quality (laser and/or microneedling with PRP) (1/2)
@anthonymrossi Plus wrinkle relaxers for dynamic wrinkles, & fillers to address volume loss and deep wrinkles & lines (2/2)
RELATED VIDEO:
Facial Rejuvenation With Fractional Laser Resurfacing
@SkindocDLCC
@CutisJournal #AskCutisJournal Whats your favorite filler for cheek lifting?
@SkindocDLCC Filler naive pts: #RestylaneLyft or #JuvedermVoluma. Experienced pts: #Radiesse or #Bellafill
@SkindocDLCC
@CutisJournal @Goldenberg_Derm What filler do you like for a sharper jawline? #AskCutisJournal
@SkindocDLCC I prefer long-lasting fillers, such as #Radiesse or #Bellafill. This is true for both male & female pts
RELATED ARTICLE:
Efficacy and Safety of New Dermal Fillers
@SkindocDLCC
@CutisJournal @Goldenberg_Derm How do you get a smooth forehead with neurotoxin without a heavy brow? #AskCutisJournal
@SkindocDLCC Precise placement of product is important. Some pts may require more product to completely smooth out forehead (1/2)
@SkindocDLCC Those pts may need a combo tx with laser such as #CO2 or #microneedling with #PRP (2/2)
@SkindocDLCC
@CutisJournal @Goldenberg_Derm How do you combine PRP and fillers? #AskCutisJournal
@SkindocDLCC I regularly use #PRP with fillers 2 enhance the effect (1/3)
@SkindocDLCC PRP helps stimulate collagen & increase vascularity needed for collagen production (2/3)
@SkindocDLCC I use a mesotherapy needle to inject #PRP after injecting filler and/or neurotoxins (3/3)
@MilitelloDerm
@CutisJournal @Goldenberg_Derm What is your favorite filler for tear troughs?
@MilitelloDerm I prefer Restylane or Juvederm Ultra. These fillers give the best volume effect & last longer than other options in my hands
RELATED ARTICLE:
Periocular Fillers and Related Anatomy
On April 18, 2017, Gary Goldenberg, MD, took over the @CutisJournal Twitter account for 1 hour to answer reader questions about updates in cosmetic dermatology. Below is a transcript of the Twitter Q&A session (#AskCutisJournal).
@carriekovarik
What can help #hyperpigmentation from prior #HIV related #prurigo in darker pts since this is a stigma of disease? #AskCutisJournal
@carriekovarik Aside from lightening agents & moisturizers, success with #microneedling. Go low & slow 2 prevent more hyperpigmentation.
RELATED ARTICLE:
Microneedling Therapy With and Without Platelet-Rich Plasma
@NailDoc12
What's new for treatment of melasma?
@NailDoc12 I recommend combo of prevention, sunscreen & lightening cream w/ microneedling w/ PRP or ktp laser such as #Cutera #ExcelV.
RELATED ARTICLE:
Dermatologists Weigh in on Skin-Lightening Agents
@NailDoc12
Is there good evidence for use of PRP for skin aging?
@NailDoc12 Pts swear by #PRP. Use after fillers/Botox & microneedling or laser. Pts say it improves skin quality, gives it a "glow" (1/2)
@NailDoc12 Growth factors in PRP improve tissue vascularity & help cells regenerate & normalize. Helps w/wound healing post procedure (2/2)
RELATED VIDEO:
Microneedling With Platelet-Rich Plasma
@anthonymrossi
@CutisJournal #AskCutisJournal What is your approach to global facial rejuvenation? Do you like to start with injectables or laser?
@anthonymrossi Total rejuvenation is just that. I rec combo tx 2 improve skin quality (laser and/or microneedling with PRP) (1/2)
@anthonymrossi Plus wrinkle relaxers for dynamic wrinkles, & fillers to address volume loss and deep wrinkles & lines (2/2)
RELATED VIDEO:
Facial Rejuvenation With Fractional Laser Resurfacing
@SkindocDLCC
@CutisJournal #AskCutisJournal Whats your favorite filler for cheek lifting?
@SkindocDLCC Filler naive pts: #RestylaneLyft or #JuvedermVoluma. Experienced pts: #Radiesse or #Bellafill
@SkindocDLCC
@CutisJournal @Goldenberg_Derm What filler do you like for a sharper jawline? #AskCutisJournal
@SkindocDLCC I prefer long-lasting fillers, such as #Radiesse or #Bellafill. This is true for both male & female pts
RELATED ARTICLE:
Efficacy and Safety of New Dermal Fillers
@SkindocDLCC
@CutisJournal @Goldenberg_Derm How do you get a smooth forehead with neurotoxin without a heavy brow? #AskCutisJournal
@SkindocDLCC Precise placement of product is important. Some pts may require more product to completely smooth out forehead (1/2)
@SkindocDLCC Those pts may need a combo tx with laser such as #CO2 or #microneedling with #PRP (2/2)
@SkindocDLCC
@CutisJournal @Goldenberg_Derm How do you combine PRP and fillers? #AskCutisJournal
@SkindocDLCC I regularly use #PRP with fillers 2 enhance the effect (1/3)
@SkindocDLCC PRP helps stimulate collagen & increase vascularity needed for collagen production (2/3)
@SkindocDLCC I use a mesotherapy needle to inject #PRP after injecting filler and/or neurotoxins (3/3)
@MilitelloDerm
@CutisJournal @Goldenberg_Derm What is your favorite filler for tear troughs?
@MilitelloDerm I prefer Restylane or Juvederm Ultra. These fillers give the best volume effect & last longer than other options in my hands
RELATED ARTICLE:
Periocular Fillers and Related Anatomy
On April 18, 2017, Gary Goldenberg, MD, took over the @CutisJournal Twitter account for 1 hour to answer reader questions about updates in cosmetic dermatology. Below is a transcript of the Twitter Q&A session (#AskCutisJournal).
@carriekovarik
What can help #hyperpigmentation from prior #HIV related #prurigo in darker pts since this is a stigma of disease? #AskCutisJournal
@carriekovarik Aside from lightening agents & moisturizers, success with #microneedling. Go low & slow 2 prevent more hyperpigmentation.
RELATED ARTICLE:
Microneedling Therapy With and Without Platelet-Rich Plasma
@NailDoc12
What's new for treatment of melasma?
@NailDoc12 I recommend combo of prevention, sunscreen & lightening cream w/ microneedling w/ PRP or ktp laser such as #Cutera #ExcelV.
RELATED ARTICLE:
Dermatologists Weigh in on Skin-Lightening Agents
@NailDoc12
Is there good evidence for use of PRP for skin aging?
@NailDoc12 Pts swear by #PRP. Use after fillers/Botox & microneedling or laser. Pts say it improves skin quality, gives it a "glow" (1/2)
@NailDoc12 Growth factors in PRP improve tissue vascularity & help cells regenerate & normalize. Helps w/wound healing post procedure (2/2)
RELATED VIDEO:
Microneedling With Platelet-Rich Plasma
@anthonymrossi
@CutisJournal #AskCutisJournal What is your approach to global facial rejuvenation? Do you like to start with injectables or laser?
@anthonymrossi Total rejuvenation is just that. I rec combo tx 2 improve skin quality (laser and/or microneedling with PRP) (1/2)
@anthonymrossi Plus wrinkle relaxers for dynamic wrinkles, & fillers to address volume loss and deep wrinkles & lines (2/2)
RELATED VIDEO:
Facial Rejuvenation With Fractional Laser Resurfacing
@SkindocDLCC
@CutisJournal #AskCutisJournal Whats your favorite filler for cheek lifting?
@SkindocDLCC Filler naive pts: #RestylaneLyft or #JuvedermVoluma. Experienced pts: #Radiesse or #Bellafill
@SkindocDLCC
@CutisJournal @Goldenberg_Derm What filler do you like for a sharper jawline? #AskCutisJournal
@SkindocDLCC I prefer long-lasting fillers, such as #Radiesse or #Bellafill. This is true for both male & female pts
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Efficacy and Safety of New Dermal Fillers
@SkindocDLCC
@CutisJournal @Goldenberg_Derm How do you get a smooth forehead with neurotoxin without a heavy brow? #AskCutisJournal
@SkindocDLCC Precise placement of product is important. Some pts may require more product to completely smooth out forehead (1/2)
@SkindocDLCC Those pts may need a combo tx with laser such as #CO2 or #microneedling with #PRP (2/2)
@SkindocDLCC
@CutisJournal @Goldenberg_Derm How do you combine PRP and fillers? #AskCutisJournal
@SkindocDLCC I regularly use #PRP with fillers 2 enhance the effect (1/3)
@SkindocDLCC PRP helps stimulate collagen & increase vascularity needed for collagen production (2/3)
@SkindocDLCC I use a mesotherapy needle to inject #PRP after injecting filler and/or neurotoxins (3/3)
@MilitelloDerm
@CutisJournal @Goldenberg_Derm What is your favorite filler for tear troughs?
@MilitelloDerm I prefer Restylane or Juvederm Ultra. These fillers give the best volume effect & last longer than other options in my hands
RELATED ARTICLE:
Periocular Fillers and Related Anatomy
Debunking Psoriasis Myths: Do Treatments for Psoriasis Cause Suicide?
Myth: Psoriasis Therapies Can Cause Suicidal Ideation in Psoriasis Patients
Psoriasis takes a toll on patients, both physically and emotionally. Depression is one of the comorbidities of psoriasis due to biological changes that cause psoriasis as well as the stigma of visible psoriasis. Severe depression and suicidal ideation have been perceived to be features of life-threatening medical disorders, but dermatologists need to be aware of the relationship between depressive symptoms, suicidal ideation, and psoriasis severity.
A 2010 United Kingdom study of 916,948 patients with mild psoriasis, severe psoriasis, or controls without psoriasis indicated that patients with psoriasis have an increased risk for depression, anxiety, and suicidality. The relative risk of these outcomes is elevated in younger patients with psoriasis, with the greatest relative risk being for depression in patients with severe psoriasis.
Kimball et al conducted a study in the United States of 7404 patients with psoriasis and 37,020 controls without psoriasis (age, <18 years). They reported that pediatric patients with psoriasis were significantly more at risk of developing psychiatric disorders versus controls (P=.0001), especially depression (P=.0036) and anxiety (P=.0048).
In February 2017, the US Food and Drug Administration (FDA) announced approval of brodalumab for use in adults with moderate to severe plaque psoriasis. It is intended for patients who are candidates for systemic therapy or phototherapy but have failed to respond or have stopped responding to other systemic therapies. Lebwohl et al published the results of the phase 3 clinical trials, which showed that brodalumab was highly effective in reducing plaque psoriasis, even compared to ustekinumab. In fact, psoriasis area and severity index scores of 100 were significantly higher in the brodalumab 210-mg group versus ustekinumab group by week 12 (P<.001).
However, the approval is accompanied with a strict warning from the FDA and tightly regulated access to the drug, as suicidal ideation and behavior, including 4 suicides, occurred in patients treated with brodalumab during clinical trials, particularly patients with a history of depression or suicidality. According to the FDA, "[a] causal association between treatment with [brodalumab] and increased risk of suicidal ideation and behavior has not been established." The label includes a black box warning and the drug will only be available through a restricted Risk Evaluation and Mitigation Strategy program, which has the following requirements from the FDA:
- Prescribers must be certified with the program and counsel patients about this risk. Patients with new or worsening symptoms of depression or suicidality should be referred to a mental health professional, as appropriate.
- Patients must sign a Patient-Prescriber Agreement Form and be made aware of the need to seek medical attention should they experience new or worsening suicidal thoughts or behavior, feelings of depression, anxiety, or other mood changes.
- Pharmacies must be certified with the program and must only dispense to patients who are authorized to receive the drug.
A medication guide is available for patients to inform them of the risk for suicidal ideation and behavior. The benefit of treatment must be weighed carefully against the seriousness of the risks associated with use.
Regardless of the therapy prescribed, dermatologists should be aware of the symptoms of depression. The National Psoriasis Foundation suggests you ask patients how they dress: Do they always wear long-sleeved shirts when they leave the house? Do they wear black? These questions can help determine if patients feel socially isolated or stigmatized by the disease. The National Psoriasis Foundation offers a Patient Navigation Center to help patients find a psychologist who specializes in issues related to psoriatic disease. Antidepressants and seeing a mental health professional can help, but ultimately taking control of the disease is the best way to improve depression.
Expert Commentary
According to the prescribing information for brodalumab, "Eight of the 10 subjects who attempted or completed suicide had a history of depression and/or suicidal ideation or behavior." Thus, 80% of these cases were at risk even before receiving 1 injection of brodalumab. Long-term registries will determine if there is truly an increased risk for suicidal ideation or behavior when taking brodalumab.
Brodalumab will be commercially available around the fall 2017. Before prescribing brodalumab, I will counsel patients about this potential increased risk of suicidal ideation or behavior as noted in the prescribing information, but I will tell them that a true risk has not yet been determined in long-term registries. I will mention to patients that if they really do feel depressed or experience suicidal ideation or behavior after starting brodalumab, they should stop taking brodalumab and contact me or a mental health professional.
—Jashin J. Wu, MD (Los Angeles, California)
FDA approves new psoriasis drug [news release]. Silver Spring, MD: US Food and Drug Administration; February 15, 2017. https://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm541981.htm. Accessed April 5, 2017.
Gupta MA, Schork NJ, Gupta AK, et al. Suicidal ideation in psoriasis. Int J Dermatol. 1993;32:188-190.
Kimball AB, Wu EQ, Guérin A, et al. Risks of developing psychiatric disorders in pediatric patients with psoriasis. J Am Acad Dermatol. 2012;67:651-7.e1-651-7.e2.
Kurd SK, Troxel AB, Crits-Christoph P, et al. The risk of depression, anxiety and suicidality in patients with psoriasis: a population-based cohort study. Arch Dermatol. 2010;146:891-895.
Lebwohl M, Strober B, Menter A, et al. Phase 3 studies comparing brodalumab with ustekinumab in psoriasis. N Engl J Med. 2015;373:1318-1328.
Life with psoriasis: depression. National Psoriasis Foundation website. https://www.psoriasis.org/life-with-psoriasis/depression. Accessed April 5, 2017.
Özkaya Ö. Biologic psoriasis treatment, Siliq, approved by FDA with strong warning of possible suicide risk. https://psoriasisnewstoday.com/2017/02/16/psoriasis-drug-siliq-approved-by-fda-with-warning-of-possible-suicide-risk/. Published February 16, 2017. Accessed April 5, 2017.
Myth: Psoriasis Therapies Can Cause Suicidal Ideation in Psoriasis Patients
Psoriasis takes a toll on patients, both physically and emotionally. Depression is one of the comorbidities of psoriasis due to biological changes that cause psoriasis as well as the stigma of visible psoriasis. Severe depression and suicidal ideation have been perceived to be features of life-threatening medical disorders, but dermatologists need to be aware of the relationship between depressive symptoms, suicidal ideation, and psoriasis severity.
A 2010 United Kingdom study of 916,948 patients with mild psoriasis, severe psoriasis, or controls without psoriasis indicated that patients with psoriasis have an increased risk for depression, anxiety, and suicidality. The relative risk of these outcomes is elevated in younger patients with psoriasis, with the greatest relative risk being for depression in patients with severe psoriasis.
Kimball et al conducted a study in the United States of 7404 patients with psoriasis and 37,020 controls without psoriasis (age, <18 years). They reported that pediatric patients with psoriasis were significantly more at risk of developing psychiatric disorders versus controls (P=.0001), especially depression (P=.0036) and anxiety (P=.0048).
In February 2017, the US Food and Drug Administration (FDA) announced approval of brodalumab for use in adults with moderate to severe plaque psoriasis. It is intended for patients who are candidates for systemic therapy or phototherapy but have failed to respond or have stopped responding to other systemic therapies. Lebwohl et al published the results of the phase 3 clinical trials, which showed that brodalumab was highly effective in reducing plaque psoriasis, even compared to ustekinumab. In fact, psoriasis area and severity index scores of 100 were significantly higher in the brodalumab 210-mg group versus ustekinumab group by week 12 (P<.001).
However, the approval is accompanied with a strict warning from the FDA and tightly regulated access to the drug, as suicidal ideation and behavior, including 4 suicides, occurred in patients treated with brodalumab during clinical trials, particularly patients with a history of depression or suicidality. According to the FDA, "[a] causal association between treatment with [brodalumab] and increased risk of suicidal ideation and behavior has not been established." The label includes a black box warning and the drug will only be available through a restricted Risk Evaluation and Mitigation Strategy program, which has the following requirements from the FDA:
- Prescribers must be certified with the program and counsel patients about this risk. Patients with new or worsening symptoms of depression or suicidality should be referred to a mental health professional, as appropriate.
- Patients must sign a Patient-Prescriber Agreement Form and be made aware of the need to seek medical attention should they experience new or worsening suicidal thoughts or behavior, feelings of depression, anxiety, or other mood changes.
- Pharmacies must be certified with the program and must only dispense to patients who are authorized to receive the drug.
A medication guide is available for patients to inform them of the risk for suicidal ideation and behavior. The benefit of treatment must be weighed carefully against the seriousness of the risks associated with use.
Regardless of the therapy prescribed, dermatologists should be aware of the symptoms of depression. The National Psoriasis Foundation suggests you ask patients how they dress: Do they always wear long-sleeved shirts when they leave the house? Do they wear black? These questions can help determine if patients feel socially isolated or stigmatized by the disease. The National Psoriasis Foundation offers a Patient Navigation Center to help patients find a psychologist who specializes in issues related to psoriatic disease. Antidepressants and seeing a mental health professional can help, but ultimately taking control of the disease is the best way to improve depression.
Expert Commentary
According to the prescribing information for brodalumab, "Eight of the 10 subjects who attempted or completed suicide had a history of depression and/or suicidal ideation or behavior." Thus, 80% of these cases were at risk even before receiving 1 injection of brodalumab. Long-term registries will determine if there is truly an increased risk for suicidal ideation or behavior when taking brodalumab.
Brodalumab will be commercially available around the fall 2017. Before prescribing brodalumab, I will counsel patients about this potential increased risk of suicidal ideation or behavior as noted in the prescribing information, but I will tell them that a true risk has not yet been determined in long-term registries. I will mention to patients that if they really do feel depressed or experience suicidal ideation or behavior after starting brodalumab, they should stop taking brodalumab and contact me or a mental health professional.
—Jashin J. Wu, MD (Los Angeles, California)
Myth: Psoriasis Therapies Can Cause Suicidal Ideation in Psoriasis Patients
Psoriasis takes a toll on patients, both physically and emotionally. Depression is one of the comorbidities of psoriasis due to biological changes that cause psoriasis as well as the stigma of visible psoriasis. Severe depression and suicidal ideation have been perceived to be features of life-threatening medical disorders, but dermatologists need to be aware of the relationship between depressive symptoms, suicidal ideation, and psoriasis severity.
A 2010 United Kingdom study of 916,948 patients with mild psoriasis, severe psoriasis, or controls without psoriasis indicated that patients with psoriasis have an increased risk for depression, anxiety, and suicidality. The relative risk of these outcomes is elevated in younger patients with psoriasis, with the greatest relative risk being for depression in patients with severe psoriasis.
Kimball et al conducted a study in the United States of 7404 patients with psoriasis and 37,020 controls without psoriasis (age, <18 years). They reported that pediatric patients with psoriasis were significantly more at risk of developing psychiatric disorders versus controls (P=.0001), especially depression (P=.0036) and anxiety (P=.0048).
In February 2017, the US Food and Drug Administration (FDA) announced approval of brodalumab for use in adults with moderate to severe plaque psoriasis. It is intended for patients who are candidates for systemic therapy or phototherapy but have failed to respond or have stopped responding to other systemic therapies. Lebwohl et al published the results of the phase 3 clinical trials, which showed that brodalumab was highly effective in reducing plaque psoriasis, even compared to ustekinumab. In fact, psoriasis area and severity index scores of 100 were significantly higher in the brodalumab 210-mg group versus ustekinumab group by week 12 (P<.001).
However, the approval is accompanied with a strict warning from the FDA and tightly regulated access to the drug, as suicidal ideation and behavior, including 4 suicides, occurred in patients treated with brodalumab during clinical trials, particularly patients with a history of depression or suicidality. According to the FDA, "[a] causal association between treatment with [brodalumab] and increased risk of suicidal ideation and behavior has not been established." The label includes a black box warning and the drug will only be available through a restricted Risk Evaluation and Mitigation Strategy program, which has the following requirements from the FDA:
- Prescribers must be certified with the program and counsel patients about this risk. Patients with new or worsening symptoms of depression or suicidality should be referred to a mental health professional, as appropriate.
- Patients must sign a Patient-Prescriber Agreement Form and be made aware of the need to seek medical attention should they experience new or worsening suicidal thoughts or behavior, feelings of depression, anxiety, or other mood changes.
- Pharmacies must be certified with the program and must only dispense to patients who are authorized to receive the drug.
A medication guide is available for patients to inform them of the risk for suicidal ideation and behavior. The benefit of treatment must be weighed carefully against the seriousness of the risks associated with use.
Regardless of the therapy prescribed, dermatologists should be aware of the symptoms of depression. The National Psoriasis Foundation suggests you ask patients how they dress: Do they always wear long-sleeved shirts when they leave the house? Do they wear black? These questions can help determine if patients feel socially isolated or stigmatized by the disease. The National Psoriasis Foundation offers a Patient Navigation Center to help patients find a psychologist who specializes in issues related to psoriatic disease. Antidepressants and seeing a mental health professional can help, but ultimately taking control of the disease is the best way to improve depression.
Expert Commentary
According to the prescribing information for brodalumab, "Eight of the 10 subjects who attempted or completed suicide had a history of depression and/or suicidal ideation or behavior." Thus, 80% of these cases were at risk even before receiving 1 injection of brodalumab. Long-term registries will determine if there is truly an increased risk for suicidal ideation or behavior when taking brodalumab.
Brodalumab will be commercially available around the fall 2017. Before prescribing brodalumab, I will counsel patients about this potential increased risk of suicidal ideation or behavior as noted in the prescribing information, but I will tell them that a true risk has not yet been determined in long-term registries. I will mention to patients that if they really do feel depressed or experience suicidal ideation or behavior after starting brodalumab, they should stop taking brodalumab and contact me or a mental health professional.
—Jashin J. Wu, MD (Los Angeles, California)
FDA approves new psoriasis drug [news release]. Silver Spring, MD: US Food and Drug Administration; February 15, 2017. https://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm541981.htm. Accessed April 5, 2017.
Gupta MA, Schork NJ, Gupta AK, et al. Suicidal ideation in psoriasis. Int J Dermatol. 1993;32:188-190.
Kimball AB, Wu EQ, Guérin A, et al. Risks of developing psychiatric disorders in pediatric patients with psoriasis. J Am Acad Dermatol. 2012;67:651-7.e1-651-7.e2.
Kurd SK, Troxel AB, Crits-Christoph P, et al. The risk of depression, anxiety and suicidality in patients with psoriasis: a population-based cohort study. Arch Dermatol. 2010;146:891-895.
Lebwohl M, Strober B, Menter A, et al. Phase 3 studies comparing brodalumab with ustekinumab in psoriasis. N Engl J Med. 2015;373:1318-1328.
Life with psoriasis: depression. National Psoriasis Foundation website. https://www.psoriasis.org/life-with-psoriasis/depression. Accessed April 5, 2017.
Özkaya Ö. Biologic psoriasis treatment, Siliq, approved by FDA with strong warning of possible suicide risk. https://psoriasisnewstoday.com/2017/02/16/psoriasis-drug-siliq-approved-by-fda-with-warning-of-possible-suicide-risk/. Published February 16, 2017. Accessed April 5, 2017.
FDA approves new psoriasis drug [news release]. Silver Spring, MD: US Food and Drug Administration; February 15, 2017. https://www.fda.gov/NewsEvents/Newsroom/PressAnnouncements/ucm541981.htm. Accessed April 5, 2017.
Gupta MA, Schork NJ, Gupta AK, et al. Suicidal ideation in psoriasis. Int J Dermatol. 1993;32:188-190.
Kimball AB, Wu EQ, Guérin A, et al. Risks of developing psychiatric disorders in pediatric patients with psoriasis. J Am Acad Dermatol. 2012;67:651-7.e1-651-7.e2.
Kurd SK, Troxel AB, Crits-Christoph P, et al. The risk of depression, anxiety and suicidality in patients with psoriasis: a population-based cohort study. Arch Dermatol. 2010;146:891-895.
Lebwohl M, Strober B, Menter A, et al. Phase 3 studies comparing brodalumab with ustekinumab in psoriasis. N Engl J Med. 2015;373:1318-1328.
Life with psoriasis: depression. National Psoriasis Foundation website. https://www.psoriasis.org/life-with-psoriasis/depression. Accessed April 5, 2017.
Özkaya Ö. Biologic psoriasis treatment, Siliq, approved by FDA with strong warning of possible suicide risk. https://psoriasisnewstoday.com/2017/02/16/psoriasis-drug-siliq-approved-by-fda-with-warning-of-possible-suicide-risk/. Published February 16, 2017. Accessed April 5, 2017.