ArthrogryposisDistal Femoral Extension Osteotomy for Knee Flexion Contracture in Patients with ArthrogryposisDelBello, Damon A. M.D.; Watts, Hugh G. M.D.Author Information Shriners Hospital for Crippled Children, Los Angeles, California, U.S.A. Address correspondence and reprint requests to Dr. D. DelBello, Blind Brook Lane and Purchase Street, Rye, NY 10580, U.S.A. Journal of Pediatric Orthopaedics: January-February 1996 - Volume 16 - Issue 1 - p 122-126 Buy Abstract Summary Severe knee flexion contractures in patients with arthrogryposis multiplex congenita were treated by distal femoral extension osteotomy. Thirty-two operations were followed for an average of 32 months. Contractures were corrected from 49° to 6°. During follow-up there was a loss of correction of 22° at a rate of 0.9°/month. The angle of the distal femoral physis and the shaft of the femur was 2° of flexion preoperatively, and postoperatively it measured 43° of extension and at late follow-up it measured 19°. Remodeling occurred at a rate of 1.0°/month, which correlated with recurrence. All patients increased their ambulatory ability at least one level. There was one wound infection. Distal femoral extension osteotomy is effective and safe for the correction of knee flexion contracture. Recurrence occurs in all growing children. © Lippincott-Raven Publishers.