Treatment of Avascular Necrosis with Transtrochanteric Rotational Osteotomy

A retrospective study was performed on 8 hips in 6 consecutive patients with avascular necrosis of the femoral head.Avascular necrosis of the femoral head was induced by alcohol abuse in 1 hip, trauma in 3 hips, and steroid intake in 4 hips.Each patient was treated by Sugioka's transtrochanteric rotational osteotomy of the femoral head. In 5 of the 8 hips, varus osteotomy of the femur was simultaneously performed at the time of transtrochanteric rotational osteotomy. With an average follow-up of 1 year after Sugioka's transtrochanteric rotational osteotomy, seven hips showed good or excellent results. The remaining one patient had postoperative hip pain, although collapse of the affected area was not demonstrated on the recent radiographs.