superior cluneal nerve

The superior cluneal nerves innervate the skin of the upper part of the buttocks.

Superior cluneal nerves (yellow) - labeled as "post."

"Superior Cluneal Nerve Entrapment - An Overlooked Cause of Low Back Pain," Dynamic Chiropractic, 16(10).

The medial branch of the superior cluneal nerve passes over the iliac crest through a tunnel formed by the thoracolumbar fascia and the superior rim of the iliac crest.

This branch of the superior cluneal nerve may become restricted in its osteofibrous tunnel against the iliac crest, just as osteofibrous tunnels affect other nerves, such as in carpal tunnel syndrome.