Jacobs在1991年首次报道腹腔镜结肠切除术,其后多项研究证实腹腔镜结肠癌根治术与传统开放手术可获得同样肿瘤学效果~([1])。2009年,Hohenberger等~([2])提出完全结肠系膜切除(complete mesocolic excision,CME)理念,进一步规范结肠癌手术治疗。理论和实践的发展使得腹腔镜结肠癌根治术被越来越多的国内外学者接受并实施。但降结肠癌的发病率相对较低,约占所有结肠癌的5%~ Jacobs first reported laparoscopic colectomy in 1991, after which a number of studies confirmed that laparoscopic radical resection of colon cancer with the traditional open surgery can obtain the same oncology effect (1). In 2009, Hohenberger et al. [2] proposed the concept of complete mesocolic excision (CME) to further standardize the surgical treatment of colon cancer. The development of theory and practice makes laparoscopic radical resection of colon cancer accepted and implemented by more and more scholars at home and abroad. However, the incidence of decreased colon cancer is relatively low, accounting for about 5% of all colon cancer