[2] Incontinent diversions involve creating a stoma, an opening on the abdominal wall, where urine is redirected into an external collection bag.
Common techniques for this include the use of an ileal or colonic conduit, which repurposes a segment of the intestine to transport urine from the kidneys to the stoma.
In contrast, continent urinary diversions are designed to allow the patient greater control over urine storage and release.
When the urethra is not functional, a continent cutaneous reservoir, such as an Indiana pouch, can be formed, enabling the patient to drain urine via a catheter through a small abdominal opening.
Complications include incisional hernia, neobladder-intestinal and neobladder-cutaneous fistulas, ureteroenteric anastomosis stricture, neobladder rupture and mucous formation.