Quadratus Femoris
Ischiofemoral Impingement: A Commonly Missed Cause of Hip and Pelvic Pain
Ischiofemoral impingement is a condition where the space between the ischium, which is part of the pelvis, and the lesser trochanter of the femur becomes too narrow. The quadratus femoris muscle sits in this space. When the space becomes compressed, the quadratus femoris can become irritated, painful, swollen, or weakened.