The Six Short External Rotators of the Hip

Piriformis

Muscle originating from the sacrum, inserting into the greater trochanter of the femur, crucial for hip external rotation and abduction.

Superior Gemellus

Muscle located above the obturator internus, aiding in hip external rotation and stabilizing the hip joint.

Obturator Internus

Muscle passing through the greater sciatic notch, assists in external rotation and abduction of the thigh when the hip is flexed.

Inferior Gemellus

Muscle positioned below the obturator internus, contributes to hip external rotation and stabilization.

Obturator Externus

Muscle situated on the outside of the pelvis, works to externally rotate the femur.

Quadratus Femoris

Most inferior muscle of the hip rotators, essential for stabilizing the femoral head and aiding in external rotation.

Function of Lateral Rotators of the Hip

Integral for hip stability and mobility, controlling the movement of the femur.

Importance in Surgery

Knowledge of these muscles' order is vital for orthopedic surgeons during posterior hip surgeries to avoid neurovascular damage.

Relevant Neurovascular Structures

The sciatic nerve, superior and inferior gluteal vessels, and medial femoral circumflex artery are closely related to these muscles.

Medial Femoral Circumflex Artery

Principal blood supply to the femoral head, crucial for surgical procedures involving the hip.