Fig. 1From: Soft tissue restrictors of femoral elevation in direct anterior approach—an anatomic studyThe acetabulum (Ac), femoral neck (Fn), ischiofemoral ligament (Isc), anterior inferior iliac spine (AIIS), and posterior capsule are shown in a. The piriformis (Pf), obturator internus (Oi), obturator externus (Oe), and gemellus muscles are shown after ischiofemoral ligament resection in b. The clock represents the resected femur, and 12 on the clock indicates the crest of the great trochanterBack to article page