Sigmoid "tail" modification for bladder augmentation
Related Experiment Video
Updated: Nov 2, 2026
Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
Published on: August 9, 2012
R Mathews1, S Docimo, J P Gearhart
1Division of Pediatric Urology, James Buchanan Brady Urological Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
Objectives:
The sigmoid colon lends itself well to bladder augmentation particularly in patients requiring reimplantation of ureters or Mitrofanoff valves for continence. We have modified the sigmoid augment to improve ease of catheterization and ureteral reimplantation.
Methods:
Seven children underwent sigmoid "tail" bladder augmentation for various indications. Appendix or tapered ileum was used to create the catheterizable stoma. This technique uses a 3 to 5-cm segment of nondetubularized colon, fixed to the abdominal wall to ease catheterization. Durability of the modification and ease of catheterization were assessed.
Results:
All patients are dry day and night with intermittent catheterization. One patient with mild leakage has been managed with pseudoefedrine. Postoperative bowel obstruction and abscess developed in 1 patient.
Conclusions:
The sigmoid "tail" modification does not appear to confer increased morbidity and the short nondetubularized segment fixed to the posterior aspect of the anterior abdominal wall stabilizes the catheterizable stoma improving ease of catheterization.
