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Updated: Jun 24, 2026

Step-by-Step Stapedotomy through Transcanal Exclusive Endoscopic Approach
Published on: March 5, 2022
Otosclerosis: The effect of stapes surgery on the bone conduction audiogram
Francisco Antoli-Candela1, Francisco Gomez-Molinero, Ignacio Busturia-Berrade
1Instituto ORL Antoli Candela, University of Madrid, Ciudad Universitaria, Spain. iac@antolicandela.com
Objective:
The present study defines the extent of bone conduction loss that can be accounted for by stapes fixation.
Study Design:
Prospective clinical evaluation.
Setting:
Tertiary.
Patients:
Two hundred consecutively operated cases. All patients have been operated by the first author.
Intervention:
Posterior partial stapedectomy with a platinum-Teflon piston over a perichondral graft.
Main Outcome Measures:
The bone conduction is studied preoperatively, 1 week, 1 month, and 1 year after surgery.
Results:
There are at least 3 postoperative gain patterns that change with time, from 1 week to 1 year after surgery. These are patients with maximum gain at 1, 2, and 4 kHz.
Conclusion:
The results suggest that these changes are due to the relation of the preoperative and postoperative oval window transfer functions. The gain in the 3 postoperative audiometric thresholds can be approximated by looking at the characteristics of the preoperative bone conduction audiogram.
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