Ureteral replacement using the Yang-Monti principle: Long-term follow-up

ObjectivesTo present the long-term results for 2 patients with ureteral replacement using reconfigured transversely tubularized bowel segments according to the Yang-Monti principle.MethodsBetween May 1999 and November 2001, 2 patients underwent ureteral replacement at our institution using a reconfigured ileal segment in one and colon in the other. The first patient was a 33-year-old man who had lost 6 cm of the proximal left ureter after two attempts to repair a ureteral stricture. A reconfigured small bowel tube was interposed between the proximal and distal ureteral stumps after excision of the left ureteral stricture. The second patient was a 66-year-old woman with a poorly functioning right kidney and total bilateral ureteral strictures resulting from radiotherapy for metastatic cervical cancer. She underwent complete left ureteral substitution with a double Monti sigmoid tube in association with a Boari flap.ResultsWith a follow-up of 5.75 and 3.25 years, both patients were clinically doing well with a stable split renal function on mercaptotriglycylglycine renal scan and no evidence of obstruction. The man had required exploratory laparotomy 4 weeks postoperatively to correct a small bowel obstruction secondary to a bowel kink.ConclusionsThe transverse tubularized bowel tube is an effective technique for partial and complete ureteral replacement with sustained, good, long-term results. Reconfigured tubes of small or large bowel seem to promote an equally efficient urine transport mechanism that persists unaltered for long periods.