Intrapelvic complications of hip surgery: a case report of obturator nerve entrapment.

A case is presented in which a patient had persistent pain in one hip after bilateral total hip replacement for rheumatoid arthritis. The diagnosis was elusive until at intrapelvic exploration the obturator nerve was found to be markedly stretched over a large bolus of intrapelvic methylmethacrylate. The patient was completely relieved postoperatively after the cement mass was removed.