Treatment of severe slipped capital femoral epiphysis by trapezoidal subcapital resection osteotomy-a review of nine cases.

Ten subcapital resection osteotomies were performed in nine patients with severe slipped capital femoral epiphysis. The risks of this operation are discussed and the operative technique is described in detail. In one patient postoperative chondrolysis of the hip joint developed, which resulted in a stiff but painless hip. With subcapital osteotomy, normal anatomy and mobility of the hip joint can be restored, except for shortening of the femoral neck by one or two cm. At follow-up, ranging from two to 10 years, correction of the deformity and good function of the joint have been maintained.