Replacement of the damaged or neoplastic ureter by ileum.

Ileum was used as a ureteral replacement in 12 patients, 7 of whom had solitary kidneys. The conditions that necessitated an operation included renal pelvic and ureteral complications of calculi, a variety of traumatic ureteral injuries, retroperitoneal fibrosis and ureteral neoplasms. Renal function has been well preserved and electrolyte imbalance has been minimal.