Otosclerosis surgery: results of the last 5 years of the University Hospital of Jaén

Objectives: The main aim of our study is to know the percentage of success of otosclerosis surgery in our center. We have assessed it by calculating the post surgical air-bone gap from pure tone audiometries which were realised one year after the surgery. In addition, we have also estimated if there are differences between stapedectomy and stapedotomy procedures as well as possible complications such as new hearing loss at high frequencies or percentage of hearing aid needed after surgery. Methods: A retrospective cohort study was carried out with a total of 45 ears. All of them were diagnosed with otosclerosis and treated at the ENT department of Hospital Universitario de Jaén from 2015 to 2019. In our study, we have considered two cohorts depending on the procedure used, either stapedotomy or stapedectomy. Afterwards, a pure tone audiometry was performed one year after the surgery and the post- surgical air-bone gap was calculated, estimating the pure tone average from both air and bone postsurgical conduction. Results: Surgery success (air-bone gap <20dB) was achieved in 90.3% of the cases using stapedectomy technique while a 85.7% with stapedotomy technique. Altogether, considering both groups, the success of the surgery was 88.9%. There were no statistically significant differences between both techniques. Conclusions: After the results of our study, we can affirm that stapedotomy and stapedectomy have similar success rates in terms of decreasing the post-surgical air-bone gap and achieving clinical improvement of hearing, showing no statistically significant differences between them.