[Functional results of sphincter-saving techniques in cancer of the low rectum].

There are no significant differences in 5-year survival and local recurrence rates between the sphincter-saving techniques and the abdomino-perineal resection. Many changes in anorectal function, the most obvious being a marked reduction in rectal capacity and a significant decrease in anal pressure occur after sphincter-saving resection. The construction of a colonic J-pouch may result in good functional outcome, reducing postoperative faecal leakage and urgency of defecation.