Abstract
Ganz et al reported acetabular osteotomy for extensive acetabular reorientation without changing the acetabular diameter. This article reports our modification of this surgical technique, which preserves the integrity of the tensor fascia latea muscle as well as providing viable bone for bone graft at the anterior iliac osteotomy site. The interval between the sartorius and tensor fascia lata is developed distal to the anterosuperior iliac spine. After iliac osteotomy through the anterosuperior iliac spine, the distal portion of the anterosuperior iliac spine (acetabular segment), along with its slip of tensor fascia lata (1-2 cm), is separated and shaped to fit the anterior bone gap. Two small holes are drilled into that segment and also into the distal cut surface in the anterior portion of the remaining crest so that when the sutures are tightened, the tensor muscle is preserved anatomically and bone grafting is achieved.
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