Transition to robotic adrenalectomy: a surgeon-specific learning curve evaluation.

Robotic adrenalectomy is increasingly used in selected centers; however, surgeon-specific learning patterns remain unclear. This retrospective single-center cohort study included adult patients who underwent robotic transabdominal adrenalectomy between March 2024 and December 2025. Total operative time and surgeon-dependent console time were analyzed sequentially using LOESS smoothing and learning curve cumulative sum (LC-CUSUM) analysis with predefined thresholds. Fifty-six patients were included. Mean operative time was 137.8 ± 41.3 min, and mean console time was 91.0 ± 34.4 min. Learning curve analyses showed rapid early improvement followed by stabilization, with a plateau after approximately 32 cases. LC-CUSUM analysis indicated early proficiency for operative time at the 10th-12th case, whereas proficiency based on stricter console thresholds was achieved at approximately the 36th case. Robotic transabdominal adrenalectomy achieves early proficiency, while stabilization of surgeon-dependent console performance requires a longer learning period, supporting a multiphase learning curve model.