Annals of Coloproctology

Original Article

Minimally invasive surgery

A comparative study of the pathological outcomes of robot-assisted versus open surgery for rectal cancer: René Reyes, Csaba Kindler, Kenneth Smedh, Catarina Tiselius; Ann Coloproctol. 2024;40(2):154-160. Published online December 28, 2022; DOI: https://doi.org/10.3393/ac.2022.00332.0047

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Purpose
The use of robot-assisted surgery for rectal cancer is increasing, but the pathological outcomes have not been fully clarified. We compared the surgical and pathological outcomes between robot-assisted and open surgery in specimens from patients operated on for rectal cancer.
Methods
All patients who underwent resection for rectal cancer from 2016 to 2018 were included (n=137). Specimens were divided into 3 sections to analyze the pathology of the lymph nodes.
Results
The total specimen lengths were shorter in the robot-assisted group than in the open surgery group (mean±standard deviation: 29.1±8.6 cm vs. 33.8±9.9 cm, P=0.004) because of a shorter proximal resection margin (21.7±8.7 cm vs. 26.4±10.6 cm, P=0.006). The number of recruited lymph nodes (35.8±21.8 vs. 39.6±16.5, P=0.604) and arterial vessel length (8.84±2.6 cm vs. 8.78±2.4 cm, P=0.891) did not differ significantly between the 2 surgical approaches. Lymph node metastases were found in 33 of 137 samples (24.1%), but the numbers did not differ significantly between the procedures. Among these 33 cases, metastatic lymph nodes were located in the mesorectum (75.8%), in the sigmoid colon mesentery (33.3%), and at the arterial ligation site of the inferior mesenteric artery (12.1%). The circumferential resection margin and the proportion of complete mesorectal fascia were comparable between the groups.
Conclusion
There were no significant differences between the 2 surgical approaches regarding arterial vessel length, recruitment of lymph node metastases, and resection margins.

Citations

Citations to this article as recorded by

Can robotic surgery lead the way in the treatment of rectal cancer?
Jeonghee Han
Annals of Coloproctology.2024; 40(2): 87. CrossRef
Comparative analysis of short-term outcomes and oncological results between robotic-assisted and laparoscopic surgery for rectal cancer by multiple surgeon implementation: a propensity score-matched analysis
E. Barzola, L. Cornejo, N. Gómez, A. Pigem, D. Julià, N. Ortega, O. Delisau, K. A. Bobb, R. Farrés, P. Planellas
Journal of Robotic Surgery.2023; 17(6): 3013. CrossRef

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