title: Ureteral replacement using the Yang-Monti principle: long-term follow-up.
abstract: OBJECTIVE
  To present the long-term results for 2 patients with ureteral replacement using reconfigured transversely tubularized bowel segments according to the Yang-Monti principle.
  
  
  METHODS
  Between 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.
  
  
  RESULTS
  With 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.
  
  
  CONCLUSIONS
  The 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.
authors.affiliation: Division of Pediatric Urology, Miami Children's Hospital, Miami, Florida 33155, USA. miguel.castellan@excite.com
authors.forename: M
authors.initials: M
authors.lastname: Castellan
authors.forename: R
authors.initials: R
authors.lastname: Gosalbez
mesh_terms: D000328:Adult; D000368:Aged; D003106:Colon / Q000637:transplantation*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007082:Ileum / Q000637:transplantation*; D008297:Male; D013997:Time Factors; D014513:Ureter / Q000601:surgery*; D014517:Ureteral Obstruction / Q000601:surgery*; D013521:Urologic Surgical Procedures, Male / Q000379:methods