Sphincter-saving surgery in low rectal cancer

Area of Science:

• Colorectal Surgery
• Surgical Oncology
• Gastrointestinal Oncology

Background:

• Rectal cancer treatment requires balancing survival, local disease control, and functional preservation (sphincter, urinary, genital).
• Advances in understanding rectal cancer's natural history, staging accuracy, and surgical techniques are evolving treatment strategies.

Purpose of the Study:

• To review and reappraise the role of sphincter-preserving surgery for lower third rectal cancer.
• To evaluate the feasibility and outcomes of sphincter-saving procedures in distal rectal adenocarcinoma.

Main Methods:

• Retrospective review of 35 patients undergoing total rectal resection for distal rectal adenocarcinoma (3.5-8 cm from anal verge) between January 1999 and June 2004.
• Preoperative assessment focused on T staging, tumor size, fixation, and distance from the anal verge.
• Analysis of sphincter-saving procedure rates, recurrence, postoperative morbidity (anastomotic leakage), and functional outcomes (continence).

Main Results:

• Sphincter-saving procedures were performed in 80% (28/35) of patients.
• The overall recurrence rate was 11.4%, with anastomotic leakage in 10.7% of sphincter-saving procedures.
• Excellent continence was achieved in 86.3% of patients, with good functional results reported.

Conclusions:

• Sphincter-preserving surgery is a valid and feasible approach for the majority of lower third rectal cancer cases.
• This surgical strategy effectively balances oncological control with preservation of sphincter, urinary, and genital functions.
• Nerve-sparing techniques and potential use of colonic reservoirs can further optimize functional outcomes.