Sixteen Years of Experience With Otosclerosis Revision Surgery: Report of 105 Cases

Abstract

Objectives: Otosclerosis is a progressive disease of the bony labyrinth characterised by bone formation, which can cause conductive, mixed and, rarely, sensorineural hearing loss. Surgery on the stapes footplate can be successful for treating conductive hearing loss. However, complaints of new issues after surgery may prompt revision surgery. This report presents the results of revision stapes surgeries. Methodology: Study population consisted of patients who had undergone revision stapes surgery. Indications, findings during surgery, and preoperative and post-operative audiological data were recorded. Success rates of the surgeries were evaluated statistically. Results: Total of 105 cases was included in this study, and the major indication for surgery was hearing loss. Mean preoperative hearing threshold of the patients was 57.1 dB and the mean air-bone gap (ABG) was 27.4 dB; the respective postoperative values were 49.7 and 19.2 dB, respectively (p<0.05). Most common intraoperative pathologies were prosthesis-related problems and fibrotic bands/adhesion in the middle ear. Conclusions: Revision stapes surgery can yield successful results, especially with regard to persistent or late-onset conductive hearing loss. Likelihood of hearing gain may be decreased after repeated surgeries.