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Updated: Feb 11, 2026

Robot-assisted Total Mesorectal Excision and Lateral Pelvic Lymph Node Dissection for Locally Advanced Middle-low Rectal Cancer
Published on: February 12, 2022
Meta-analysis of Robot-assisted Versus Laparoscopic Surgery for Rectal Cancer
Hiroshi Ohtani1, Kiyoshi Maeda2, Shinya Nomura3
1Department of Surgery, Ohno Memorial Hospital, Osaka, Japan m5051923@msic.med.osaka-cu.ac.jp.
Background/Aim:
A meta-analysis was conducted to evaluate and compare the short- and long-term outcomes of robot-assisted (RAS) and conventional laparoscopic surgery (LAS) for rectal cancer.
Materials And Methods:
We searched MEDLINE for relevant papers published between 2010 and December 2017 by using specific search terms. We analyzed outcomes over short- and long-term periods.
Results:
We identified 23 papers reporting results that compared RAS for rectal cancer with LAS. Our meta-analysis included 4,348 patients with rectal cancer; 2,068 had undergone RAS, and 2,280 had undergone LAS. In the short- and long-term period, 27 and 7 outcome variables were examined, respectively. RAS for rectal cancer was significantly associated with a greater operative time and a lower conversion rate to open surgery in the short-term, and results in almost similar outcomes in the long-term, compared to LAS.
Conclusion:
RAS may be an acceptable surgical treatment option compared to LAS for rectal cancer.
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