Innervation Motor gluteus medius gluteus minimus tensor fascia lata Sensory none Origin Lumbo-sacro plexus nerve roots L4-S1 Course Greater sciatic notch leaves pelvis through the greater sciatic notch contents of greater sciatic notch include superior gluteal nerve superior gluteal artery and vein runs over the piriformis between the gluteus medius and minimus do not split gluteus medius more than 5 cm proximal to greater trochanter due to risk of denervating the muscle at risk during the lateral (Hardinge) approach to the hip Terminal brances branch to gluteus medius branch to gluteus minimus branch to tensor fascia lata Nerve Injury & Clinical Conditions Gluteus Medius Nerve Injury Trendelenburg Gait the tilted pelvis and shifted center of gravity are compensated through shifts in the upper body over the affected hip during the period of single-leg stance. the combination of sagging pelvis and upper body shifts results in a classic waddling gait.