Methods From Aug. 1988 to Feb. 2000, 46 cases of cancer of the rectum were treated by transabdomino-perineal saving sphincter with severing the anal sphincters and anorectal ring.

• 方法对46例直肠癌患者行经腹肛拖出式直肠癌手术的同时，切断肛门括约肌和肛管直肠环，并就其方法、结果进行回顾性分析。