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手术是治疗直肠癌的主要方法。近年,出于我国许多学者致力于直肠癌治疗方面的研究,使手术方法有了很多改进,现分别摘要如下: 直肠全长约15cm,位于骶椎腹面的前方,具有骶椎的同样曲度。临床上依肿瘤下端距肛缘的距离分上、中、下段直肠癌。按刘建伟等分段,肿瘤下缘距肛缘12～15cm为上段直肠癌,6～12cm为中段直肠癌,6cm以下为下段直肠癌。
Surgery is the main method of treating colorectal cancer. In recent years, many scholars in China have devoted themselves to the study of rectal cancer treatment and have made many improvements in surgical methods. They are summarized as follows: The rectum is about 15cm in length and is located in front of the ventral surface of the atlas. It has the same curvature of the atlas. Clinically, the distance between the lower end of the tumor and the anal margin is divided into upper and lower rectal cancer. According to Liu Jianwei and other sub-paragraphs, the tumor from the anal margin 12 ~ 15cm for the upper segment of rectal cancer, 6 ~ 12cm for the middle segment of rectal cancer, 6cm below for the lower rectal cancer.