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Task performance in stapedotomy: comparison between surgeons of different experience levels.
Daniel L Rothbaum1, Jaydeep Roy, Gregory D Hager
1Department of Otolaryngology-Head and Neck Surgery, Center for Computer Integrated Surgical Systems and Technology, Johns Hopkins University, Baltimore, MD 21287, USA. rothbaum@robotics.me.jhu.edu
Summary
Surgeon experience significantly impacts stapedotomy outcomes. Experienced surgeons show superior performance in stapes footplate fenestration and prosthesis crimping, reducing risks associated with this otologic surgery.
Area of Science:
- Otolaryngology
- Surgical Education
- Biomedical Engineering
Background:
- Stapedotomy is a critical otologic surgical procedure for hearing restoration.
- Micropick fenestration of the stapes footplate (SF) and prosthesis crimping to the incus are technically demanding steps.
- Variable hearing outcomes in stapedotomy suggest potential performance differences in critical surgical maneuvers.
Purpose of the Study:
- To investigate the correlation between surgical experience and performance in key stapedotomy tasks.
- To quantify differences in fenestration and prosthesis crimping between experienced and novice surgeons.
Main Methods:
- A surgical model of stapedotomy was utilized.
- Performance metrics were assessed in 3 experienced and 3 novice surgeons.
- Measures included fenestration targeting accuracy, force applied, crimp quality, prosthesis movement, and dislodgment rates.
Main Results:
- Experienced surgeons exhibited significantly better fenestration targeting.
- During prosthesis crimping, experienced surgeons demonstrated less stapes prosthesis movement.
- Novice surgeons had a significantly higher rate of stapes prosthesis dislodgment.
Conclusions:
- Measurable performance disparities exist between surgeons of varying experience levels in critical stapedotomy steps.
- These performance differences may explain variations in prosthesis placement and associated cochlear trauma.
- Understanding these factors can help improve surgical techniques and patient hearing outcomes.