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Updated: Aug 9, 2026
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Robot-assisted Total Mesorectal Excision and Lateral Pelvic Lymph Node Dissection for Locally Advanced Middle-low Rectal Cancer
Published on: February 12, 2022
[Total mesorectal excision and preservation of autonomic nerves]
1Department of Surgery, Ajou University School of Medicine, Suwon, Korea. suhkw@ajou.ac.kr
Summary
Total mesorectal excision (TME) is the standard for rectal cancer, offering low recurrence rates. Proper technique ensures preservation of nerves and pelvic structures, crucial for functional outcomes and cancer control.
Area of Science:
- Surgical oncology
- Rectal cancer treatment
- Pelvic anatomy
Context:
- Total mesorectal excision (TME) is the established standard for rectal cancer surgery.
- Its efficacy is demonstrated by low local recurrence rates, even without adjuvant therapies.
- TME is widely accepted for middle and lower rectal cancers, with ongoing discussion regarding upper rectal cases.
Purpose:
- To define the critical technical aspects of total mesorectal excision.
- To highlight the importance of maintaining the correct dissection plane.
- To establish clinical benchmarks for high-quality TME.
Summary:
- TME involves an en-bloc resection along the plane between parietal and visceral pelvic fasciae.
- Distal clearance to the puborectalis muscle is essential due to potential distal tumor spread and lymph node involvement.
- Adherence to the proper dissection plane is vital to prevent visceral pelvic fascia tearing and preserve autonomic nerves.
Impact:
- High-quality TME is associated with preserved sexual and urinary function.
- Achieving a single-digit, 5-year cumulative recurrence rate is a key indicator of successful TME.
- The procedure requires a learning curve for surgeons to master its intricacies.
