Revision operations after previous stapes surgery for persisting hearing loss.

Area of Science:

• Otolaryngology
• Neurosurgery
• Surgical Innovation

Background:

• Otosclerosis often requires surgical intervention, with stapes surgery being a common treatment.
• Recurrent or persistent conductive hearing loss following stapes surgery can occur due to prosthesis dislocation or adhesions in the oval window.
• The likelihood of hearing loss increases with the number of previous stapes operations.

Purpose of the Study:

• To investigate the causes of recurrent or persistent hearing loss after stapes surgery for otosclerosis.
• To evaluate the effectiveness of revision stapes surgery in improving hearing outcomes.

Main Methods:

• A retrospective analysis was conducted on 48 patients who underwent revision stapes surgery between 2005 and 2008.
• The study assessed hearing improvement and identified reasons for previous surgical failures.

Main Results:

• Adhesions and prosthesis dislocation were the primary reasons for failed stapes surgery.
• The mean postoperative air-bone gap was 12.0 dB.
• Hearing improvement (air-bone gap closure) within 10 dB was achieved in 55.8% of cases, 11-20 dB in 25.6%, and over 20 dB in 18.6%.

Conclusions:

• Revision stapes surgery is a safe and effective procedure for improving hearing in patients with persistent hearing loss after otosclerosis treatment.
• Multiple previous stapes surgeries negatively impact hearing outcomes (p < 0.05).