The Efficacy and Safety of Mid-Urethral Slings for the Treatment of Female Stress Urinary Incontinence: A Systematic Review

Abstract

Introduction: Stress urinary incontinence (SUI) is a prevalent condition that significantly impacts quality of life. The synthetic mid-urethral sling (MUS), placed via a retropubic or transobturator approach, has become the gold standard surgical treatment. This review synthesizes the extensive evidence on the long-term efficacy and safety of this procedure.

Methods: A comprehensive systematic review of RCTs and large, long-term prospective cohort studies was performed. We included studies evaluating retropubic or transobturator mid-urethral slings for female SUI. The primary outcomes were objective and subjective cure rates and the incidence of major complications, including mesh exposure.

Results: The analysis of a vast body of literature demonstrated that mid-urethral slings have high and durable success rates, with objective cure rates consistently reported between 80-90% at long-term follow-up. While complications like bladder perforation (more common with the retropubic route) and groin pain (more common with the transobturator route) can occur, the overall rate of serious adverse events is low. Mesh exposure rates are typically less than 5%.

Discussion: The mid-urethral sling is one of the most well-studied procedures in all of surgery. The evidence robustly supports its role as a highly effective, safe, and durable treatment for SUI. Proper patient selection and surgical technique are paramount to optimizing outcomes.

Conclusion: The mid-urethral sling is a safe and highly effective procedure with excellent long-term cure rates for female stress urinary incontinence.