Abstract To evaluate the initial experience of single-port robot-assisted ureteral reconstruction using a buccal mucosa graft and assess the preliminary learning curve associated with this technique. A retrospective analysis was conducted on 20 consecutive patients who underwent single-port robot-assisted ureteroplasty with buccal mucosa grafts between January 2020 and January 2026. Perioperative parameters, complications, and follow-up outcomes were recorded. Restenosis-free survival was estimated using the Kaplan–Meier method, and the learning curve for operative time was analyzed using the cumulative sum (CUSUM) method. All procedures were completed without conversion. The median follow-up period was 4.5 months (range, 1–12). The overall success rate was 90% (18/20), with two patients developing restenosis at 4 and 7 months postoperatively, requiring reintervention. The 30-day complication rate was 20% (4/20), including one Clavien grade II and three grade IIIa complications. Long-term complications occurred in two patients (10%). CUSUM analysis demonstrated a notable decline in operative time after approximately 10 cases, with stabilization after 17 cases. Single-port robot-assisted ureteroplasty with buccal mucosa grafting appears to be a safe and effective minimally invasive option for complex ureteral strictures, with favorable initial experience and an acceptable learning curve. Larger prospective studies with extended follow-up are required to confirm the long-term efficacy.
Qi et al. (Thu,) studied this question.