Tunica vaginalis patch graft urethroplasty.

An ideal free graft substance for urethroplasty should: 1, be well accepted at the site of urethroplasty with rapid healing; 2, not invite secondary complications, such as cysts, hair growth and calculus formation; 3, not cause scarring or recurrent stricture disease, and 4, be easy to procure and handle. Tunica vaginalis satisfies these criteria and, in this experimental study, proved to be an excellent graft material for urethroplastic procedures.