Application of the Invaginated Sleeve Technique to Form a Continent Ileal Urostomy

The invaginated sleeve technique has been adapted to produce a continent urostomy, able to be catheterised, from a length of canine ileum measuring less than 10 cm. Of the 4 dogs catheterised twice daily up to 13 weeks, narrowing was present in the extra-ileal segment in 2, but all intra-ileal double-barrelled lumina remained healthy with preservation of bowel mucosa.