Piriformis syndrome
What is piriformis syndrome?
Piriformis syndrome is a condition where the piriformis muscle (one of the deep muscles of the buttock) compresses or otherwise irritates the sciatic nerve as it passes under or through the piriformis muscle. This can occur by the muscle tightening or going into spasm. The piriformis muscle is one of the external rotator muscles, so-called because they allow you to rotate your thigh outwards (externally) at the hip.
Symptoms of piriformis syndrome
The symptoms of piriformis syndrome include pain deep in the buttock, and pain radiating down the back of the thigh.
Causes
Running, extensive walking and bushwalking, prolonged sitting and trauma are all causes of piriformis syndrome. Women are affected more often than men.
Treatment for piriformis syndrome
Stretching, rest from the offending activity if one has been identified, massage and anti-inflammatory medicines are the recommended treatment. With severe persistent pain, steroid injections or surgery are sometimes considered.
Last Reviewed: 14 August 2009
