Juvenile otosclerosis: radio-clinical features and outcomes of surgical treatment

ABSTRACT

Purpose: To review the radio-clinical features and to evaluate the outcomes of surgery approaches for the treatment of otosclerosis in pediatric population. Methods: It's a retrospective study including 12 patients under 18 years of age, diagnosed with otosclerosis and using data over a 24 ­ year ­period (1996-2020). A clinical examination, an audiometric assessment and a computed tomography of the temporal bone (CT-Scan) prior to surgery had been performed in all cases. All patients underwent surgical treatment under general anesthesia. Follow ­up was essentially clinical and audiometric with a mean period of 4years. Results: Mean age of our patients was 15.3 with a ratio of 0.5. Only three of them had a family history of otosclerosis. Major functional sign was hearing loss; tinnitus was noted in only 5 cases. CT-Scan had shown typical radiographic evidence of otosclerosis grade Ia (Veillon classification) in 9 cases, grade Ib in 1 case and no abnormalities in 2 cases. Surgery was performed in all cases 8 patients underwent stapedotomy and 4 had stapedectomy. The audiometric results were good, air-bone gap closure to within 10 dB was achieved in 84% of cases (10 cases) and to within 20dB in 100% of cases at last follow-up. Conclusion: Audiometric and radiological assessments are essential to guide the diagnosis and the treatment of juvenile otosclerosis. Stapes surgery is a good option for closing the air-bone gap in children with bilateral juvenile otosclerosis