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Updated: Feb 6, 2026
07:35
The Microscopic Transcanal Approach in Stapes Surgery Revisited
Published on: February 16, 2022
2.9K
Primary Endoscopic Stapes Surgery: Audiologic and Surgical Outcomes
Ashley M Nassiri1, Robert J Yawn1, Matthew M Dedmon1
1Department of Otolaryngology, Vanderbilt University Medical Center, Nashville, Tennessee.
Summary
Endoscopic stapes surgery, including stapedotomy and stapedectomy, effectively treats stapes fixation. This hearing restoration surgery significantly improves air-bone gap, with 84% of patients achieving closure within 10 dB.
Area of Science:
- Otolaryngology
- Neurosurgery
- Audiology
Background:
- Stapes fixation, often due to otosclerosis, causes conductive hearing loss.
- Surgical intervention aims to restore hearing by addressing stapes immobility.
Purpose of the Study:
- To evaluate the outcomes of primary endoscopic stapes surgery.
- To assess both surgical and audiologic results of endoscopic stapedotomy and stapedectomy.
Main Methods:
- A retrospective case series was conducted at two tertiary otologic centers.
- Eighty-one ears with confirmed stapes fixation underwent total endoscopic stapedotomy or stapedectomy.
- Surgical and audiologic outcomes were analyzed retrospectively.
Main Results:
- The median air-bone gap improved from 31.3 dB preoperatively to 6.25 dB postoperatively (p < 0.0001).
- 96.3% of patients achieved an air-bone gap closure to less than 15 dB, and 84% to less than 10 dB.
- No cases of sensorineural hearing loss or facial nerve injury were reported; transient dysgeusia and disequilibrium occurred in some patients.
Conclusions:
- Endoscopic stapedotomy and stapedectomy are effective in managing stapes fixation.
- The procedures result in significant improvement in air-bone gap, with a median postoperative value of 6.25 dB.
- High rates of hearing improvement, with 84% of patients achieving closure within 10 dB, support the efficacy of these endoscopic techniques.
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