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자료유형
학술저널
저자정보
Lee Geonho (Department of Otorhinolaryngology-Head and Neck Surgery Chungnam National University Hospital Daeje) Kim Yoonjoong (Department of Otorhinolaryngology-Head and Neck Surgery Chungnam National University Hospital Daeje) Kim Bong Jik (Department of Otolaryngology-Head and Neck Surgery Chungnam National University College of Medicine)
저널정보
대한청각학회 Journal of Audiology & Otology Journal of Audiology & Otology Vol.25 No.3
발행연도
2021.1
수록면
159 - 162 (4page)

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Temporal bone trauma can cause hearing loss and in case of prolonged conductive hearing loss, traumatic ossicular injury should be considered. Separation of the incudostapedial joint is the most common lesion, and stapediovestibular dislocation is relatively rare but can easily cause perilymphatic fistula. Here, we report a very rare case of external stapediovestibular dislocation after trauma, ending up with successful surgical outcome. A 27-year-old man with non-progressive hearing loss on the right side since childhood visited the clinic. Audiogram showed a conductive hearing loss with air-bone gap of 55 dB on the right side. Temporal bone CT revealed the disruption of ossicular chain. An exploratory tympanotomy identified multiple ossicular disruptions including external stapediovestibular dislocation with shiny fibrous membrane sealing the oval window. Ossicular chain reconstruction was performed using the total ossicular replacement prosthesis of titanium. A postoperative audiogram showed a recovery of air-bone gap less than 10 dB. To the best of our knowledge, this is the first case of external long-standing stapediovestibular dislocation, with oval window completely sealed with fibrous membrane, ending up with successful hearing recovery by surgery. This case would help dealing with such condition which can be encountered in the clinic.

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