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Piriformis Syndrome

Piriformis syndrome is one of the many causes of leg and buttock pain. In piriformis syndrome, the symptoms result from irritation of the sciatic nerve as it passes over, under, or through the piriformis muscle. Pressure on the nerve can lead to pain in the low back, buttock, groin, or posterior thigh, and it can be a cause of sciatica, with pain, tingling, or numbness along the course of the sciatic nerve. Other nerves and structures in the area may also be impinged (compressed), leading to similar symptoms.

Anatomy

The piriformis is ...

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