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New minimally invasive option for the treatment of gluteal muscle contracture.

Gluteal muscle contracture is a clinical syndrome that involves contracture and distortion of the gluteal muscles and fascia fibers due to multiple causes. Physical examination demonstrates a characteristic gait due to hip adduction and internal thigh rotation. This study introduces a new minimally invasive method for surgical release of gluteal muscle contracture. Patients with gluteal muscle contracture were assigned to 4 categories: type A, contracture occurred mainly in the iliotibial tract; type B, contracture occurred in the Iliotibial tract and gluteus maximus; type C1, movement of the contraction band was palpable and a snapping sound was audible during squatting; and type C2, movement of the contraction band was not palpable or almost absent and a snapping sound was audible during squatting. This classification method allowed prediction of the anatomic location of these pathological contractures and determination of the type of surgery required. Four critical points were used to define the operative field and served as points to mark a surgical incision smaller than 4 mm. The contracture was easily released in this carefully marked operative field without causing significant neurovascular damage. Over a period of 5 years, between March 2003 and June 2008, the authors treated 1059 patients with this method and achieved excellent outcomes. Most patients were fully active within 12 weeks, with the assistance of an early postoperative rehabilitation program. The most significant complication was a postoperative periarticular hematoma, which occurred in 3 patients within 10 days postoperatively and required surgical ligation of the bleeding vessel.