Superior gluteal nerve entrapment syndrome.
Entrapment of the superior gluteal nerve can occur as a result of compression by anterior-superior tendinous fibers of the piriformis muscle and cause aching claudication-type buttock pain, weakness of abduction of the affected hip with a waddling gait, and tenderness to palpation in the area of the buttock superolateral to the greater sciatic notch. Instilling anesthetic into the point of entrapment may relieve the pain completely, but superior gluteal neurolysis may be required to effect a permanent cure.
D000368:Aged; D002081:Buttocks / Q000294:innervation*; D005260:Female; D006801:Humans; D009408:Nerve Compression Syndromes / Q000473:pathology* / Q000628:therapy