探讨低位直肠癌患者使用直肠拖出切除吻合术的临床优势，为该手术的临床应用提供理论支持。

对重庆市人民医院36例低位直肠癌患者随机分为实验组及对照组，每组各18例，实验组行直肠拖出切除吻合术，对照组行经腹直肠前切除吻合术。评估两组患者的的临床指标、肛门功能以及其预后情况。

对两组的临床基本资料进行比较，其中手术时间（t=15.728，P=0.000）、住院天数（t=4.391，P=0.044）、术中出血量（t=5.231，P=0.029）差异具有统计学意义（均P<0.05）；对两组患者术后不同时段的肛门功能进行比较，其中6个月时各等级（t=10.000，P=0.040）差异具有统计学意义；对两组患者的预后情况进行比较，其中两组患者在复发例数上（χ²=4.500，P=0.034）差异具有显著统计学意义。

低位直肠癌患者使用直肠拖出切除吻合术能有效的减少患者的手术时间，提高患者的生活质量，不失为一种安全、可行的手术方法。

To explore the clinical advantage of rectal excision anastomosis in low rectal cancer patients, and provide theoretical support for the clinical application of this operation.

For chongqing city people′s hospital of 36 patients with low rectal cancer were randomly divided into experimental group and the control group, two groups of 18 cases in each group, experimental group anastomosis, rectum drag resection control via abdominal rectal excision anastomosis. The clinical indicators, anal function and prognosis of the two groups were evaluated.

The clinical data of the two groups were compared. The difference of operation time, number of hospital stays and intraoperative blood loss was statistically significant (P<0.05). The anal function of the two groups of patients was compared in different time after operation, and the difference of grade was statistically significant in six months (t=10.000, P=0.040). The prognosis of the two groups was compared, and the difference between the two groups was statistically significant (χ²=4.500, P=0.034).

Patients with low rectal cancer can effectively reduce the time of operation and improve the quality of life of patients using rectal excision anastomosis, which can be a safe and feasible surgical method.