Experience of the Cohen method for ureteral reimplantation in complicated cases.

Thirty-seven infants and children (41 ureters), a majority with complicating factors (low age, neurogenic bladder, duplication, reoperative surgery), were treated with ureteral reimplantation according to Cohen. The results were good in 90% of the cases. Minor deviations from the original technique, i. e. Dexon instead of chromic catgut as suturing material, catheter splinting of ureter in only 40% and short length of submucosal tunnel in some cases, did not seem to have a negative influence on the results. The method, which is easy and safe to perform, is recommended, particularly in complicated cases.