For “Sex, Lies, and Videotape” star Andie MacDowell, life recently has been a real pain in the ... sciatic nerve. It runs from the buttocks to the leg and was causing the former Calvin Klein model to ...
Piriformis syndrome is a rare neuromuscular condition that happens when the piriformis muscle in the butt presses on the sciatic nerve, according to the Genetic and Rare Diseases Information Center ...