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Revision stapes surgery with and without laser: a comparison
H Silverstein1, E Bendet, S Rosenberg
1Ear Research Foundation, Sarasota, Fla 34239.
The Laryngoscope
|December 1, 1994
Summary
Revision stapes surgery outcomes were reviewed, with prosthesis issues being the primary reason for revision. Laser use in primary procedures may reduce adhesions, though hearing results showed no significant difference compared to conventional techniques.
Area of Science:
- Otolaryngology
- Otosclerosis Surgery
- Laser Applications in Surgery
Background:
- Revision stapes surgery is performed to address complications or suboptimal outcomes from primary stapedotomy.
- Common causes for revision include prosthesis malposition, incus erosion, and tympanic membrane adhesions.
- Laser technology has been explored as an alternative to traditional methods in stapes surgery.
Purpose of the Study:
- To evaluate the outcomes of revision stapes surgeries.
- To identify the primary causes for revision stapes surgery.
- To compare hearing results between laser and conventional techniques and assess the impact of laser use on adhesions.
Main Methods:
- Retrospective review of 76 revision stapes surgeries conducted between 1974 and 1992.
- Analysis of surgical indications, techniques used (KTP or argon laser vs. conventional), and audiological outcomes.
- Categorization of outcomes based on air-bone gap closure (<= 10 dB for success, <= 20 dB for improvement) and revision number.
Main Results:
- Prosthesis problems were the most frequent cause for revision (63%), followed by incus erosion/necrosis (29%) and adhesions (29%).
- Overall success (air-bone gap <= 10 dB) was 46% for first revisions and 33% for subsequent revisions.
- Improvement (air-bone gap <= 20 dB) rates were 65% for first revisions and 53% for subsequent revisions.
- No significant difference in hearing outcomes was found between laser and conventional techniques.
- Laser use in primary procedures was associated with a lower incidence of adhesions.
Conclusions:
- Prosthesis issues are the leading indication for revision stapes surgery.
- Hearing outcomes in revision stapes surgery are moderate, particularly for multiple revisions.
- While laser surgery did not show superior hearing results compared to conventional methods, it may reduce the formation of adhesions when used in primary procedures.