The urinary and sexual outcomes of buccal mucosal graft urethroplasty versus end-to-end anastomosis: a systematic review with meta-analysis.

Abstract

The urinary and sexual outcomes after urethroplasty may be a concern for patients, but there are still some controversies regarding the consequences of buccal mucosal graft urethroplasty (BMG) in terms of erectile dysfunction (ED). This meta-analysis aimed to compare urinary and sexual outcomes of BMG and end-to-end urethroplasty (EE). The PubMed, Web of Science, Cochrane, and Embase databases were searched until February 31, 2023. Data extraction and quality assessment were performed by 2 designated researchers. Dichotomous data were analyzed as odds ratios with 95% confidence intervals (CIs). Heterogeneity across studies was assessed by the I2 quantification, and publication bias using Begg's and Egger's tests. Meta-analysis was performed using RevMan software. Outcomes included stricture recurrence, ED, penile complications, and voiding symptoms. Eighteen studies, including 1648 participants, were included in our meta-analysis. The meta-analysis revealed that there was no significant difference in stricture recurrence (OR = 0.74; 95% CI, 0.48-1.13; P = .17) and voiding symptoms (OR = 1.12; 95% CI, 0.32-3.88; P = .86) between the BMG group and the EE group. BMG was associated with lower risk of penile complications (OR = 0.40; 95% CI, 0.24-0.69; P = .001) and ED (OR = 0.53, 95% CI, 0.32-0.90, P = .02). The study may help clinicians choose procedures that achieve better recovery of the urological and sexual function in the treatment of urethral stricture. This meta-analysis is the first to evaluate the urinary and sexual outcomes of BMG vs EE. A limitation is that most of the included studies were retrospective cohort studies. BMG is as effective as EE in the treatment of bulbar urethral stricture, but BMG has fewer complications and ED than EE.