Ureterocystoplasty: an extraperitoneal, urothelial bladder augmentation technique.

A technique of bladder augmentation is described in which the dilated ureter draining a unilateral, poorly functioning kidney is used to augment a small capacity, non-compliant bladder. This extraperitoneal bladder augmentation technique has been used in three boys with a history of congenital obstruction of the posterior urethra and ipsilateral vesicoureteric reflux.