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Introduction: Meatal stenosis and fossa navicularis strictures (FNSs) are commonly caused by lichen sclerosus and instrumentation. We present the technique and short-term functional outcomes of glans cap-preserving dorsal inlay-free graft augmentation for the reconstruction of meatal stenosis and FNS. Methods: This retrospective study analyzed patients with meatal stenosis and FNS who underwent glans cap-preserving dorsal inlay-free graft augmentation at our institute since 2019. The surgical technique included a ventral subcoronal approach, preservation and mobilization of the glans cap, a ventral midline urethrotomy incision over the stricture, and a dorsal midline meatotomy incision extending to the proximal normal urethral mucosa at the fossa navicularis, followed by dorsal inlay graft augmentation. During the follow-up, patients were periodically assessed for symptom scores, urinary flow rates (UFRs), and patient-reported outcomes. Results: A total of 26 patients with a mean age of 45 ± 15 years were assessed. The predominant cause of stricture was lichen sclerosus (n = 15; 58%). The mean stricture length was 3.8 ± 0.5 cm, 73% had a circumcised phallus, and an oral mucosa graft augmentation was performed in 22 (85%) patients. Notable postoperative complications included intractable meatal hemorrhage (n = 1) and glans suture granuloma (n = 1), which required intervention. At a mean follow-up of 40 months, there were four failures, of which one patient required redo-urethroplasty. The remaining patients (n = 22; 85%) showed improved symptom scores (P < 0.05), UFRs (P < 0.05), and satisfactory patient-reported outcomes. Conclusion: Glans cap-preserving dorsal inlay-free graft augmentation is a safe and feasible technique with satisfactory short-term functional outcomes for the management of meatal stenosis and FNS in carefully selected patients.
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INTRODUCTION: Calyceal diverticulum (CD) is the outpouching of a calyx into the renal parenchyma, connected by an infundibulum. Often associated with recurrent stones, common surgical options include percutaneous nephrolithotomy (PCNL) or retrograde intrarenal surgery (RIRS). We aim to present the real-world practises and outcomes comparing both approaches and the technical choices made. MATERIALS AND METHODS: Retrospective data including 313 patients from 11 countries were evaluated. One hundred and twenty-seven underwent mini-PCNL and one hundred and eighty-six underwent RIRS. Patient demographics, perioperative parameters, and outcomes were analysed using either T test or Mann-Whitney U test. Categorical data between groups were analysed using the Chi-squared test. Propensity score matching (PSM) was performed matching for baseline characteristics. Subgroup analyses for anomalous/malrotated kidneys and difficult diverticulum access were performed. RESULTS: After PSM, 123 patients in each arm were included, with similar outcomes for stone-free rate (SFR) and complications (p < 0.001). Hospitalisation was significantly longer in PCNL. Re-intervention rate for residual fragments (any fragment > 4 mm) was similar. RIRS was the preferred re-intervention for both groups. Intraoperative bleeding was significantly higher in PCNL (p < 0.032) but none required transfusion. Two patients with malrotated anatomy in RIRS group required transfusion. Lower pole presented most difficult access for both groups, and SFR was significantly higher in difficult CD accessed by RIRS (p < 0.031). Laser infundibulotomy was preferred for improving diverticular access in both. Fulguration post-intervention was not practised. CONCLUSION: The crux lies in identification of the opening and safe access. Urologists may consider a step-up personalised approach with a view of endoscopic combined approach where required.