METHODS: This retrospective observational cohort study included patients undergoing hemithyroidectomy between January 2022 and August 2025. Voice outcomes were evaluated preoperatively and at 3 months postoperatively using the Voice Handicap Index-10 and acoustic analysis. Between-group comparisons and multivariable general linear modelling were performed to identify factors associated with postoperative voice outcomes.
RESULTS: A total of 150 patients were analysed (RA: 58; TO: 37; open: 55). Baseline VHI-10 and acoustic parameters were comparable across groups. The RA group demonstrated significantly higher postoperative VHI-10 scores and greater VHI-10 change scores compared with TO and open approaches (p