A Case of Isolated Malleus Fracture Caused by Negative Pressure

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  • 陰圧により生じたツチ骨単独骨折例
  • インアツ ニ ヨリ ショウジタ ツチ ホネ タンドク コッセツレイ

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<p>Isolated fracture of the malleus is a rare condition and is often caused by typical events, such as sudden withdrawal of a finger from the ear canal. Here, we report a case of isolated fracture of the malleus. The patient, a 36-year-old man, put his finger in the left ear canal and pulled it out suddenly, and immediately developed hearing loss on the same side. His left audiogram showed conductive hearing loss, and isolated fracture of the malleus was suspected based on the typical medical history. We performed transcanal endoscopic ear surgery (TEES) in order to obtain a good view of the tympanic cavity, and fixed the malleus fracture with calcium phosphate bone cement, which has appropriate osteoconductive characteristics. After the surgery, normal hearing was restored in the patient. Calcium phosphate bone cement is a useful material for restoring osteoconductive hearing.</p>

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