Piriformis syndrome

Piriformis syndrome is a neuromuscular disorder that is caused when the piriformis muscle compresses the sciatic nerve. The piriformis orginates from the sacrum and attaches to the femur. The sciatic nerve is the largest nerve in the body (L4-S3) and usually emerges below the piriformis muscle, however variations have been shown in many studies (see Figure 1). The patient may complain of a deep aching pain in the buttock or a radiating sharp pain that extends along the middle of the rear thigh. Sometime numbness and tingling can continue to…

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