Outcomes of single stage Dorsolateral Onlay Buccal mucosal graft Urethroplasty in long segment anterior urethral stricture: A Single -Centre Study in a Tertiary Care Hospital in Eastern India.

Objectives: To evaluate the results of dorsolateral onlay buccal mucosal graft (BMG) urethroplasty in various types of long segment anterior urethral stricture. Materials and Methods: This prospective study was conducted in the Department of Urology, R G Kar Medical College, Kolkata from April 2022 to March 2025. We studied 50 patients with long segment anterior urethral stricture, who underwent substitution urethroplasty using dorsolateral onlay BMG urethroplasty. Patients with anterior urethral stricture more than 1.5 cm were included as study population. They were assessed by detailed history, physical examination, ultrasonography of KUB with PVRU, uroflowmetry, retrograde urethrography and voiding cystourethrography, sono-urethrograms and cystoscopy. All patients were treated with dorsolateral onlay BMG urethroplasty. Patients were followed-up with uroflowmetry at 3 monthly for one year and RGU and/or urethroscopy if indicated. Success was defined as normal voiding pattern without any intervention post-operatively. Results: The etiology of stricture was lichen sclerosus et atrophicus in 44% (22 cases). Pan anterior urethral strictures were more common. Out of total 50 cases, 42(84%) had successful outcome and 8 (16%) were failure. Conclusion: We conclude that it is simple, technically feasible, easily adoptable and finally successful procedure.