You have accessJournal of UrologyTrauma/Reconstruction/Diversion: Urethral Reconstruction (including Stricture, Diverticulum) II (PD22)1 Sep 2021PD22-06 A MODIFIED APPROACH TO MEDIUM-LENGTH OBLITERATIVE BULBAR STRICTURES: TECHNIQUE AND OUTCOMES OF THE MUCOMUCOSAL ANASTOMOTIC NON-TRANSECTING AUGMENTATION (MANTA) URETHROPLASTY Phillip Marks, Roland Dahlem, Maryam Khonsari, Lennart Kühnke, Frederik König, Margit Fisch, and Malte W. Vetterlein Phillip MarksPhillip Marks More articles by this author , Roland DahlemRoland Dahlem More articles by this author , Maryam KhonsariMaryam Khonsari More articles by this author , Lennart KühnkeLennart Kühnke More articles by this author , Frederik KönigFrederik König More articles by this author , Margit FischMargit Fisch More articles by this author , and Malte W. VetterleinMalte W. Vetterlein More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000002011.06AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: For short and obliterative bulbar strictures, non-transecting excision and primary anastomosis (EPA) has come of age to avoid disrupting spongiosal blood flow. Longer obliterative strictures may be treated by a combined "double" ventral + dorsal graft (Palminteri et al. 2008) or an augmented anastomotic approach, which was recently refined by a non-transecting technique combining EPA and a dorsal graft (Welk et al. 2012; Bugeja et al. 2016). We here present the initial experience with our ventral modification of this technique, the mucomucosal anastomotic non-transecting augmentation (MANTA) urethroplasty. METHODS: We included patients with an obliterative bulbar segment (≤2 cm) and mild to moderate spongiofibrosis undergoing MANTA between 2016-2019. The stricture is approached by ventral stricturotomy to avoid extensive urethral dissection and mobilization from the corpora cavernosa. Dorsally, the scar is superficially excised and the spongiosum is left intact. Dorsal mucomucosal anastomosis (excluding sponge tissue) is performed, which is complemented by a ventral onlay buccal mucosal graft. Perioperative characteristics were prospectively collected including uroflowmetry data and validated PROMs (6-item LUTS score of the USS PROM). We evaluated the postoperative improvement of objective (uroflowmetry at three weeks postoperatively) and functional follow-up, which incorporated patient-reported parameters (LUTS score) and functional success, whereas recurrence was defined as the symptomatic need of any re-intervention. RESULTS: Median age in 54 men undergoing MANTA was 51 yr, 83% and 26% had a history of ≥1 urethrotomy and urethroplasty, respectively. Stricture location was bulbar in 70% and penobulbar in 30%. Median operative time and graft length was 55 min and 4 cm, respectively. In 35 patients with measurable uroflowmetry data, median Qmax significantly improved (7.7 ml/s preoperatively to 31 ml/s three weeks postoperatively; p<0.001). Cross-sectional functional follow-up was performed at a median of 40 mo (range 5-57) postoperatively and was available in 50/54 patients (93% response rate). Preoperative median 6-item LUTS score was 12 (IQR 8–14) and improved significantly after surgery to a postoperative median of 1 (IQR 0-3; p<0.001). Overall success was 93% with 4/54 patients suffering from functional stricture recurrence and the need of a re-intervention. CONCLUSIONS: MANTA urethroplasty using a ventral onlay provides excellent mid-term results in patients with bulbar strictures with an obliterative segment ≤2 cm and adds to the surgical armamentarium of non-transecting techniques by minimizing extensive mobilization. Source of Funding: n/a © 2021 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 206Issue Supplement 3September 2021Page: e382-e382 Advertisement Copyright & Permissions© 2021 by American Urological Association Education and Research, Inc.MetricsAuthor Information Phillip Marks More articles by this author Roland Dahlem More articles by this author Maryam Khonsari More articles by this author Lennart Kühnke More articles by this author Frederik König More articles by this author Margit Fisch More articles by this author Malte W. Vetterlein More articles by this author Expand All Advertisement Loading ...
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