Utility of a freehand frameless navigation system in computed tomography-assisted ventral bulla osteotomy for otitis media in calves.

ABSTRACT: Ventral bulla osteotomy has not been widely adopted for treating otitis media in calves due to its prolonged surgical duration (>1 h), high surgical invasiveness, and challenges in application for bilateral cases. This study aimed to evaluate the utility of a freehand frameless navigation system for computed tomography-assisted ventral bulla osteotomy in 21 calves diagnosed with otitis media. Preparation times-including computed tomography examination and registration procedures-varied between 18 and 73 min. This technique allows for a minimal skin incision, approximately 1 cm in length, allowing instrument access via a 7-mm-diameter trocar. Surgical times for the 36 affected ears across 21 animals ranged between 7 and 26 min per ear. This technique reduced total procedure time, including

SUBMITTER: Tsuka T 

PROVIDER: S-EPMC12904415 | biostudies-literature | 2026

REPOSITORIES: biostudies-literature