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Updated: Sep 28, 2026

Surgical Model for Single-Staged Tissue-Engineered Urothelial Tubes in Minipigs
Published on: July 5, 2024
Distal ureteral replacement with tubularized porcine small intestine submucosa
R Corey O'Connor1, Courtney M P Hollowell, Gary D Steinberg
1Department of Surgery, Section of Urology, University of Chicago Hospitals, Chicago, Illinois 60637, USA.
Abstract:
Extensive ureteral injury can result from renal stone disease, iatrogenic injury, or penetrating trauma. A significant ureteral stricture can be repaired using various techniques, including the psoas hitch, Boari flap, transureteroureterostomy, ileal ureter, or renal autotransplantation. We describe a woman with a 5-cm, ischemic uretero-Indiana pouch stricture that developed after cystectomy and urinary diversion. Severe pelvic fibrosis prevented adequate mobilization of the ureter and Indiana pouch and would not permit any of the above-mentioned procedures. We report the first human use of tubularized small intestine submucosa to successfully replace a 5-cm strictured segment of distal ureter.
