本文通过低位直肠癌保留肛门手术32例与 Miles 手术41例近期疗效的对比分析,表明 Mi1es 手术在提高治愈率、降低手术复发率、术后生存率及患者生活质量上都明显优于保肛组。认为肿瘤距肛缘在6 cm 以下的低位直肠癌以行 Miles 术为宜。 This article compares and analyzes the short-term results of 32 cases of low rectal cancer anus preservation surgery and Miles operation, indicating that Mi1es surgery is significantly better than the sphincter preservation group in improving the cure rate, reducing the recurrence rate, postoperative survival rate and patient quality of life . It is suggested that Miles surgery is appropriate for low rectal cancer whose tumor is less than 6 cm away from the anal margin.