Ultrasound‐Assisted Endoscopic Lesser Trochanter Resection for Ischiofemoral Impingement

Abstract Ischiofemoral impingement is a rare cause of buttock pain resulting from narrowing of the space between the ischial tuberosity and the femoral lesser trochanter. Although most cases improve with conservative treatment, refractory cases may require surgical treatment. One such treatment option includes endoscopic resection of the lesser trochanter, which is an uncommon, extra‐articular, endoscopic surgery that carries several complication risks, such as injury of important neurovascular structures. By marking the sciatic nerve preoperatively and making a portal under ultrasound guidance, this surgery can be performed safely and easily.