OBJECTIVETo investigate the reliability and feasibility of abdominal-anus resection with preservation of anal sphincter by telescopic anastomisis of colon rectal mucosa for middle-lower segment of rectal cancer.

METHODSA retrospective analysis was made for abdominal-anus resection with telescopic anastomosis of colon rectal mucosa in 102 cases of middle-lower segment of rectal cancer.

RESULTSNo anastomotic fistula and anastomotic stenosis occurred in the 102 cases. The increased defecation was found during early stage of postoperation, about 6-12 times per day. But this was easily controlled by antidiarrheal drugs. Twelve to 18 weeks later, defecation returned to normal. Follow-up was performed in 91 patients, and the follow-up rate was 89.2%. Mean follow-up period was 4.7 years. Local recurrence rate of the carcinoma was 5.4% (5/91), and hepatic metastasis rate was 13.1% (12/91). Three-year survival rate of postoperation was 86.9% (60/80), and five-year survival rate was 70.7% (29/41).

CONCLUSIONSWith telescopic anastomosis of colon rectal mucosa, colon stoma can be avoided, and anastomotic fistula can be prevented. The operation is safety and effective in preservation of anal sphincter for rectal cancer therapy.