. The quadratus femoris is used in Meyer's muscle pedicle grafting to prevent avascular necrosis of femur head.
Course
It originates on the lateral border of the
inferior gemellus above and the adductor magnus below, so that its upper and lower borders run horizontal and parallel.[3]
At its origin, the upper margin of the
medial femoral circumflex
vessels.
A
bursa is often found between the front of this muscle and the lesser trochanter
.
Clinical significance
Groin pain can be a disabling ailment with many potential root causes: one such cause, often overlooked, is quadratus femoris
tendinitis. Magnetic resonance imaging can show abnormal signal intensity at the insertion of the right quadratus femoris tendon, which suggests inflammation of the area.[4] Since the muscle works to laterally rotate and adduct the femur, actions involving the lower body can strain the muscle. In addition, patients present with hip pain and an increased signal intensity of the MRI of the quadratus femoris have been shown to also have a significantly narrower ischiofemoral space compared to the general populace. The ischiofemoral impingement may be a cause of the hip pain associated with quadratus femoris tendinitis.[5]
Quadratus femoris muscle
Additional images
Right femur. Posterior surface.
Structures surrounding right hip-joint.
Nerves of the right lower extremity Posterior view.
Right femur. Posterior surface.
Structures surrounding right hip-joint.
Nerves of the right lower extremity Posterior view.
Quadratus femoris muscle
Muscles of Thigh. Anterior views.
This article incorporates text in the public domain from page 477 of the 20th edition of Gray's Anatomy (1918)
