Defining the surgical planes on MRI improves surgery for cancer of the low rectum

Area of Science:

• Colorectal Surgery
• Surgical Oncology
• Rectal Cancer Management

Background:

• Low rectal cancer presents significant challenges in preoperative staging and surgical management.
• Traditional abdominoperineal excision for low rectal cancer is associated with suboptimal oncological outcomes.
• This may be attributed to the unique anatomy of the low rectum and poorly defined surgical planes.

Purpose of the Study:

• To discuss the anatomical and surgical planes relevant to low rectal cancer management.
• To describe a two-plane surgical approach for low rectal cancer.
• To improve oncological outcomes in patients with low rectal cancer.

Main Methods:

• Review of anatomical and surgical literature pertaining to the low rectum.
• Discussion of the mesorectal plane and the extralevator plane.
• Description of the two-plane approach technique.

Main Results:

• Identification of critical anatomical planes for dissection in low rectal cancer surgery.
• The two-plane approach utilizes both the mesorectal and extralevator planes.
• This approach aims to provide clearer excision margins and potentially better oncological control.

Conclusions:

• The anatomical features of the low rectum necessitate careful consideration of surgical planes.
• A two-plane approach, incorporating the mesorectal and extralevator planes, offers a structured method for managing low rectal cancer.
• This technique may enhance surgical precision and improve outcomes compared to traditional methods.