To investigate the feasibility of total colectomy with Da Vinci robot Si system.

From December 2017 to August 2019, the clinical data of 7 cases with total colorectal resection performed by Da Vinci surgical robot SI system in the department of colorectal surgery, the 940th Hospital of Joint Logistics Support Force of Chinese People′s Liberation Army. The clinical data were analyzed retrospectively. The operation was carried out by five punch cards in the abdomen, two changes of operation position and two docking robots.

Of the seven patients, four were familial polyposis of colon, two of them had malignant change; two were slow transit constipation, one of them had colorectal cancer and one had multiple primary colorectal cancer. Two patients were converted to open surgery, one was converted to open surgery because of severe upper abdominal adhesion, the other was converted to open surgery because of megacolon. There were no complications occurred during the operation and no perioperative death. The average operation time was (332.0±95.2) min (150~430 min), the average time of the uninterrupted laparotomy was (364.0±61.9) min (280~430 min); the robot installation time was (37.9±6.4) min (30~50 min), and the intermediate conversion robot position was (14.0±2.2) min (10~15 min). The average estimated blood loss was (157.1±60.8) mL (100~250 mL). For malignant cases, the number of extracted lymph nodes were 18~49, with an average of (26.3±15.2).

The method of performing a total colorectal resection with five holes in the abdominal wall, two times of changing the surgical position, and two times of docking robot is safe and feasible, and can also achieve the effect of radical treatment.