Superior and Inferior gluteal nerve

Feature

Superior Gluteal Nerve

Inferior Gluteal Nerve

Root

value

L4, L5, S1

L5, S1, S2

Origin

Sacral plexus

Sacral plexus

Pathway

Exits through greater sciatic foramen,

above the piriformis muscle

Exits through greater sciatic foramen,

below the piriformis muscle

Muscles

supplied

- Gluteus medius

- Gluteus minimus

- Tensor fasciae lata (TFL)

- Gluteus maximus

Function

- Hip abduction

- Medial rotation

- Stabilization of pelvis

during walking

- Hip extension

- Lateral rotation of thigh

 

Clinical

correlation

Injury leads to Trendelenburg sign

(pelvic drop on the opposite side)

Injury leads to difficulty in rising from

a seated position and climbing stairs

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