PREPUBIC URETHROSTOMY FOR PERMANENT URINARY-DIVERSION IN 2 VIETNAMESEPOTBELLIED PIGS

Two Vietnamese pot-bellied pigs were evaluated because of disruption o f the distal portion of the urethra. In I pig, disruption was a compli cation of castration; in the other, disruption was associated with a s tricture at the junction of the membranous and penile portions of the urethra. Prepubic urethrostomy was performed in the first pig, because the urethra and penis had been damaged extensively during castration and primary repair of the urethra was not considered possible. Prepubi c urethrostomy was performed in the second pig, because the stricture was too close to the vesicourethral junction for perineal urethrostomy to be successful. Both pigs recovered without complications and maint ained urinary continence. Lack of tension at the urethrostomy site, at raumatic tissue handling, spatulation the urethral orifice. and accura te apposition of the urethral mucosa to the skin margin are essential to maintain urinary continence and to prevent stricture of, and urine- induced dermatitis around, the urethrostomy site.