Muco-cutaneous ureterostomy: an experimental study for prevention of stomal stenosis using autograft of vaginal vestibular mucosa.
To prevent dermal invasion which causes gradual stomal stenosis in cutaneous ureterostomy, transplantation of autologous vaginal vestibular mucosa around the ureteral opening was examined in 9 female dogs. Results of a full-thickness graft to a full-thickness skin bed were hopeful. Though surface keratinization occurred, the thick graft survived well on the abdomen without obvious shrinkage, and the ureteral patency was maintained through the follow-up period with an average of 18 months. This method seemed to be applicable to clinical patients and to dog experiments as a model for separate renal function study.