The implantation of ureter was evaluated in 21 clinically healthy dogs. Urinary continence was maintained after surgery and the proced ure was completed without technique errors except 3 dogs died within 7 days after surgery,
The dogs were classified into 3 groups (each of 7 dogs). In group (1), the implantation was pirformed into the colon (ureterosigmoidost omy) and in group (2), the implantation was done into the ileum (ureteroiliosigmoidostomy) while in group (3), the implantation was performed subcutaneously (cutaneous ureterostomy) with induction of an external urinary fistula.
In all groups complete cystectomy was performed. Clinical, radiograph ic, post-mortum, histopathological examinations and biochemical analysis
all were studied to confirm not only the most suitable technique for implantation of ureter but also the possible pathophysiological changes that accumpany this operation. The best results for implantat ion with good functioning kidney and ureter after complete cystectomy was cutaneous ureterostomy with permanent external fistula.