Abstract
Background. Robotic surgery has been recently used as a novel tool for rectal surgery. This study assessed the current evidence regarding the efficiency, safety, and potential advantages of robotic rectal surgery (RRS) compared with laparoscopic rectal surgery (LRS). Methods. We comprehensively searched PubMed, Embase, and the Cochrane Library databases and performed a systematic review and cumulative meta-analysis of all randomized controlled trials (RCTs) assessing the 2 approaches. Results. Seven RCTs including a total of 1022 cases were identified. The conversion rate is significantly lower for RRS (odds ratio: 0.29; 95% confidence interval: 0.09 to 0.96; P = .04). The length of the distal margin was significantly shorter in the LRS group than in the RRS group (weighted mean difference: 0.60; 95% confidence interval: 0.09 to 1.10; P = .02). Perioperative complication rates, harvested lymph nodes, positive circumferential resection margins, complete total mesorectal excision, first flatus, and length of stay did not differ significantly between approaches (P > .05). Conclusions. This meta-analysis indicates that RRS is a safe and effective approach. It is not inferior to LRS in terms of oncologic outcomes and postoperative complications. Future large-volume, well-designed RCTs with extensive follow-up are awaited to confirm and update the findings of this analysis.
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