Stapled versus handsewn methods for colorectal anastomosis surgery

Area of Science:

• Surgical Techniques
• Gastrointestinal Surgery
• Evidence-Based Medicine

Background:

• Previous systematic reviews have not established superiority between stapled and handsewn colorectal anastomosis techniques.
• An updated review was conducted to reassess available data on the safety and effectiveness of these surgical methods.

Purpose of the Study:

• To compare the safety and effectiveness of stapled versus handsewn colorectal anastomosis surgery.
• To test the hypothesis that stapled techniques reduce complication rates.

Main Methods:

• A comprehensive literature search of randomized controlled trials (RCTs) was performed in major databases (CENTRAL, MEDLINE, EMBASE).
• Nine RCTs involving 1233 adult patients undergoing elective colorectal anastomosis were included.
• Outcomes analyzed included mortality, anastomotic dehiscence, stricture, hemorrhage, reoperation, wound infection, and procedure/hospital stay duration.

Main Results:

• No significant differences were observed between stapled and handsewn techniques for mortality, overall dehiscence, clinical dehiscence, or radiological dehiscence.
• Stapled anastomosis was associated with a higher incidence of stricture (NNT 17).
• Stapled techniques showed a shorter anastomosis duration, but no significant difference in reoperation, wound infection, or hospital stay.

Conclusions:

• Current evidence is insufficient to demonstrate the superiority of either stapled or handsewn colorectal anastomosis in elective settings.
• No new RCTs comparing these techniques in elective surgery have emerged in the past decade.
• Further clinical trials are recommended for high-risk situations like emergency surgery, trauma, and inflammatory bowel disease.