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Updated: Apr 19, 2026

Robot-assisted Total Mesorectal Excision and Lateral Pelvic Lymph Node Dissection for Locally Advanced Middle-low Rectal Cancer

Robot-assisted Total Mesorectal Excision and Lateral Pelvic Lymph Node Dissection for Locally Advanced Middle-low Rectal Cancer

Published on: February 12, 2022

Robotic Rectal Cancer Resection: A Retrospective Multicenter Analysis.

Minia Hellan¹, James Ouellette, Jorge A Lagares-Garcia

¹Division of Surgical Oncology, Department of Surgery, Wright State University, Dayton, OH, USA, minia.hellan@wright.edu.

Annals of Surgical Oncology

|December 10, 2014

Summary

Robotic rectal cancer surgery is safe and effective, overcoming technical challenges in difficult cases. This minimally invasive approach adheres to oncologic principles, offering a viable option for complex patient profiles.

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Area of Science:

Surgical Oncology
Minimally Invasive Surgery
Robotic Surgery

Background:

Conventional laparoscopy for colorectal resections has limitations, particularly in technically demanding laparoscopic rectal resections.
Robotic surgery offers solutions to overcome the technical challenges associated with laparoscopic rectal surgery, especially in difficult pelvic cases.

Purpose of the Study:

To confirm the feasibility of robotic rectal cancer surgery.
To evaluate robotic tumor-specific mesorectal excision in a large, multicenter setting.

Main Methods:

Retrospective analysis of 425 patients undergoing robotic tumor-specific mesorectal excision across seven institutions.
Outcomes analyzed for the overall cohort, stratified by obesity and resection level (low vs. ultra-low).

Main Results:

Low intraoperative complication rate (4.5%) and positive circumferential margin rate (0.9%).
Conversion to open surgery rate was 5.9%, with an 8.7% anastomotic leak rate and a 5.7-day mean length of stay.
Obesity and ultra-low resections were associated with longer operative times, but other outcomes remained comparable.

Conclusions:

Robotic-assisted minimally invasive surgery for rectal cancer is safe and oncologically sound.
Robotic surgery is a valuable treatment option for challenging rectal cancer resections.
Body Mass Index (BMI) has a minimal impact on surgical outcomes.