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Updated: May 10, 2026

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Clinical Application of Single-Surgeon, Three-Port, Laparoscopic Resection for Colorectal Cancer with Natural Orifice Specimen Extraction
Published on: March 24, 2023
[Laparoscopic versus open intersphincteric resection for low rectal cancer: a clinical comparative study]
Tong Zhou1, Guang-jun Zhang, Zuo-liang Liu
1Department of Gastrointestinal Surgery, The Affiliated Hospital of North Sichuan Medical College, Sichuan Nanchong 637000, China. zhanggj1977@126.com.
Summary
Laparoscopic intersphincteric resection offers comparable oncological outcomes to open surgery for low rectal cancer. This minimally invasive approach results in less blood loss, faster recovery, and shorter hospital stays without increased complications.
Area of Science:
- Colorectal Surgery
- Surgical Oncology
- Minimally Invasive Surgery
Background:
- Low rectal cancer treatment often requires complex surgical procedures.
- Intersphincteric resection is a technique used for cancers located near the anal sphincter.
- Minimally invasive approaches are increasingly explored to improve surgical outcomes.
Purpose of the Study:
- To compare clinical and oncological outcomes of laparoscopic versus open intersphincteric resection for low rectal cancer.
- To evaluate the safety and efficacy of laparoscopic intersphincteric resection.
- To assess postoperative recovery and complication rates between surgical methods.
Main Methods:
- Retrospective comparative study of patients with low rectal cancer.
- Inclusion of patients undergoing either laparoscopic (n=27) or open (n=41) intersphincteric resection from January 2007 to January 2010.
- Comparison of operative procedures, postoperative complications, anal function, and clinicopathological data.
Main Results:
- Laparoscopic resection showed significantly less blood loss (150.5 vs. 258.4 ml) and faster bowel function recovery (2.9 vs. 3.6 days).
- The laparoscopic group experienced shorter hospital stays (7.7 vs. 9.1 days) and diet resumption (6.6 vs. 7.5 days).
- Postoperative complication rates (18.5% vs. 19.5%) and oncological outcomes (lymph nodes, margins, recurrence) were comparable between groups.
Conclusions:
- Laparoscopic intersphincteric resection is as effective as open surgery for low rectal cancer.
- The laparoscopic approach offers benefits including reduced blood loss, quicker recovery, and shorter hospital stays.
- Oncological results and postoperative morbidity are similar, supporting the use of laparoscopic intersphincteric resection.

