Total rectal resection and colo-anal anastomosis with colonic reservoir for low rectal cancer.

From March 1990 to December 1992, 47 patients with primary or recurrent low rectal cancer underwent total rectal resection and a coloendoanal anastomosis. Rectal resection was extended downward to the ano-rectal junction. The restorative technique included a colo-endoanal anastomosis between the dentate line and a J-shaped colic reservoir. All lesions were located within 7 cm of the anal verge (within 6 cm in 33 primary cases). Macroscopic and histological radicality was documented in all cases. Pelvic recurrence occurred in six patients and was para-anastomotic in one case. Post-operative morbidity was low. Perfect continence was documented in 36 patients and 72 of the cases had one or two bowel movements a day. All but four patients are alive at a follow-up ranging from 6 to 40 months (median 20 months). This approach is a safe option to conventional total rectal excision with permanent colostomy for lower third rectal carcinoma.