등골근 건 절제술로 치료한 일측성 전음성 난청 1예

Abstract

The ossification of stapedial tendon is a rare disorder of middle ear that results in conductive hearing loss. It might be easily misdiagnosed as otosclerosis, and only exploratory tympanotomy can indicate cases where the mobility of stapes is not fixed or has increased. Cutting of the tendon results in nearly normal ossicular mobility and hearing improvement. A 41-year-old patient visited our clinic with slowly progressive hearing loss. Hearing evaluation revealed that he had a conductive hearing loss with intact tympanic membrane. The mobility of stapes was enhanced by cutting of the tendon through exploratory tympanotomy ; hearing was improved thereafter.