Piriformis Injection

The piriformis muscle is one of the muscles deep in the buttocks that rotates the leg outwards. The sciatic nerve runs very close to this muscle.

If the muscles become tight, it can put pressure on the sciatic nerve, causing pain in the buttock and radiating down the leg. The piriformis injection deposits a small amount of local anesthetic (numbing medication) and steroid (anti-inflammatory) into the muscle to relieve the pain.

Patient guidelines (PDF)

Procedure overview (PDF)