Troubleshooting of failed continence mechanisms in the ileocecal pouch: Operative technique and long-term results of the intussuscepted ileal nipple valve.

To provide a detailed step-by-step operative technique, and to report on long-term functional and metabolic outcomes in secondary continence mechanisms in the form of secondary intussuscepted ileal nipple valves in revisional surgery of ileocecal pouches.