In this study, investigators will evaluate the perioperative safety and feasibility of robotic transanal specimen extraction surgery with robotic transabdominal incision specimen extraction surgery as a control.The study is prospective, randomized, open-label, and multicenter conducted at 12 centers. Considering the significance level and abscission rate, it is expected that a total of 556 subjects will be included in the two groups from January 2023 to June 2024, with the incidence of postoperative complications as the main study endpoint.
This prospective, multicenter, randomized, open-label study aims to evaluate the perioperative safety and feasibility of specimen extraction through anus regarding robotic radical excision of rectal cancer.