Piriformis Syndrome
From WikiMSK
Piriformis syndrome is a controversial entity that describes entrapment neuropathy of the sciatic nerve through the piriformis muscle. It is the opinion of the author and colleagues that this condition is over-diagnosed in New Zealand and that most cases of purported piriformis syndrome can be explained by somatic referred pain from other structures such as a lumbar disc, lumbar facet joint, or sacroiliac joint.