Impact of Rods and Bridges in Loop Stomas: Systematic Review and Meta-Analysis

Overview

This systematic review and meta-analysis evaluated the efficacy and safety of using rods or bridges in loop stoma formation. The analysis incorporated randomized controlled trials assessing complications such as stomal retraction, skin necrosis, and infections, with evidence graded by GRADE and robustness tested by trial sequential analysis.

Background

Diverting loop stomas, including loop ileostomies and colostomies, are commonly used in colorectal surgery to reduce anastomotic leakage and promote healing. Despite their protective role, stomas can cause complications like retraction, prolapse, and skin issues. Traditionally, support rods or bridges are placed to prevent stoma retraction and maintain positioning, but their efficacy remains controversial with conflicting evidence from randomized trials. A rigorous evaluation is needed to guide evidence-based surgical practice regarding routine rod or bridge use.

Data Highlights

Key Findings

• Use of rods or bridges does not consistently reduce the risk of stomal retraction compared to no support.
• Some evidence suggests rods may increase the risk of peristomal skin complications and infections.
• The quality of evidence varies, with some studies showing moderate to high risk of bias.
• Trial sequential analysis indicates that current evidence may be insufficient to definitively confirm benefits or harms.
• Heterogeneity among studies limits the ability to draw firm conclusions.
• Routine use of rods or bridges in loop stomas remains controversial due to inconsistent efficacy and potential for increased complications.

Clinical Implications

Clinicians should carefully weigh the potential benefits and risks of using rods or bridges in loop stoma formation. Given the inconsistent evidence and possible increased risk of skin complications and infections, routine use of support devices may not be justified. Individualized surgical decisions based on patient risk factors and surgeon experience remain essential.

Conclusion

This systematic review highlights the uncertain benefit and potential risks associated with rods and bridges in loop stomas. Further high-quality randomized trials are needed to establish clear guidelines for their use in colorectal surgery.

References

1. PRISMA 2020 Statement -- Preferred Reporting Items for Systematic Reviews and Meta-Analyses
2. GRADE Working Group -- Grading quality of evidence and strength of recommendations
3. Cochrane Handbook -- Cochrane Collaboration's recommendations
4. Trial Sequential Analysis -- Copenhagen TSA program