stapedectomy
Pronunciation: stay-puh-DEK-tuh-mee
Surgical procedure replacing the fixed stapes bone with a prosthetic device to restore hearing in otosclerosis.
Full Definition
Stapedectomy is a microsurgical procedure performed to treat conductive hearing loss caused by stapes fixation, most commonly from otosclerosis. The surgery involves removing part or all of the stapes bone and inserting a prosthetic device (typically a piston) to restore sound transmission from the middle ear to the inner ear. Success rates exceed 90% for hearing improvement, with most patients achieving closure of the air-bone gap to within 10 dB. Potential complications include sensorineural hearing loss, dizziness, and taste disturbances. Post-operative audiological follow-up is essential to document outcomes and detect complications.
Usage
Usage note: Distinguish from 'stapedotomy' which preserves the stapes footplate; both procedures may be used interchangeably in some contexts.
In Context
- "The ENT surgeon achieved excellent stapedectomy results with complete air-bone gap closure." — Post-operative assessment report
- "Stapedectomy candidacy requires stable sensorineural thresholds and adequate air-bone gaps." — Surgical consultation guidelines