Comparison of Clinical Outcomes on Short Tape Single-Incision Sling Devices (Solyx) and Adjustable Length Device (I-Stop-Mini) for Urodynamic Stress Incontinence at 1 Year.

Abstract

Introduction and hypothesis: The study is primarily aimed at comparing the outcome of voiding dysfunction related to over-tension and the resumption of normal voiding after tension-releasing suture (TRS) manipulation following Solyx and I-stop-mini procedures. Second, it is aimed at determining the cure rate, complications, and quality of life at 1 year postoperatively.

Methods: This is a retrospective study conducted from March 2015 to June 2023. Patients with clinically confirmed pure stress urinary incontinence (SUI) and urodynamic stress incontinence were included; those with pelvic organ prolapse (POP) greater than stage II, neurogenic lower urinary tract dysfunction, or post-void residual of more than 100 ml were excluded. Standardized preoperative evaluations and TRS were used. Follow-ups were conducted at 1 week, 1 month, 3 months, 6 months, and annually. Statistical analyses were performed using SPSS version 17.

Results: Out of 453 patients, 333 underwent Solyx and 120 underwent I-stop-mini procedures. The mean age was 56.6 years with an average BMI of 25.4. After Solyx, 18.9% had urinary retention whereas 10.8% had urinary retention after I-stop-mini. TRS manipulation was done in 12% post-Solyx and 4.2% post-I-stop-mini. Objective cure rates were 87.1% for Solyx and 91.7% for the I-stop-mini, with no statistical difference. Two patients in the Solyx group required repeat mid-urethral sling surgery. No cases of mesh erosion were noted in either of the groups.

Conclusions: Solyx and I-stop-mini are both effective at treating SUI. A short-tape single-incision sling device (Solyx) resulted in more voiding dysfunction than the adjustable-length device (I-stop-mini). TRS helps to resolve postoperative voiding dysfunction.