Deferent duct plasty from autologous testicular vaginal tunica propria on an arteriovenous pedicle.

Results of plastic replacement of a part of the deferent duct with a tubular prosthesis formed from the testicular vaginal tunica propria on an arteriovenous pedicle under conditions of a chronic experiment on dogs showed that by day 10 postoperation half of the epididymal anastomoses were obstructed, while by days 17-20 obturation of all epididymal anastomoses was observed, which was caused by organization of the intraductal spermatogranuloma mass. The negative effect of spermatogranuloma consisted in detachment of epithelial cells of the deferent duct from the underlying tissues. By days 17-20 postoperation no epithelial cells were left on the internal surface of the duct at the site of the epididymal anastomosis.