Prune-bell syndrome: a report of twelve cases and review of the literature.

Prune-belly syndrome is a rare congenital disease involving a deficiency of abdominal muscles, genitourinary abnormalities, and cryptorchidism. About half of the patients with the disease have associated musculoskeletal abnormalities, including club foot and dislocation of the hip. We saw twelve patients with this disease, four of whom required extensive orthopaedic treatment.