Ossiculoplasty for Malleus Bar with Incudostapedial Disconnection and Fused Incudomalleolar Joint
Ossiculoplasty for Malleus Bar with Incudostapedial Disconnection and Fused Incudomalleolar Joint
复制标题
锤骨杆与间镫骨分离及间踝关节融合的骨成形术
DOI：
10.1155/2020/8828969
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发表时间：
2020
影响因子：
0.6
通讯作者：
Nakai Masako
中科院分区：
文献类型：
--
作者：
Kanazawa Yuji;Matsuura Hitomi;Aiso Natsumi;Nakai Masako
锤骨杆是锤骨柄与鼓室后壁之间的异常骨性连接。我们报告了一名患有锤骨杆和另一种小骨畸形的患者。一名 11 岁男孩自幼就有听力障碍。计算机断层扫描（CT）显示右耳锤骨杆上有镫骨间断。在鼓室成形术中，首先识别并移除锤骨杆。术中发现了融合的锤骨，在术前 CT 上看不到。因此，融合的锤骨-砧骨被移除；然后，重建听骨链，从而改善术后听力水平。术前CT显示断连的镫骨关节，但未发现融合的锤骨砧骨。鉴于中耳锤骨杆异常的变化，听骨成形术的手术程序应根据术前 CT 上不可见的任何发现进行术中调整。
Malleus bar is an abnormal bony connection between the malleus handle and the posterior wall of the tympanic cavity. We report a patient with a malleus bar and another malformation of the ossicles. An 11‐year‐old boy presented with hearing impairment since early childhood. Computed tomography (CT) revealed a malleus bar with an incudostapedial disconnection in the right ear. At tympanoplasty, the malleus bar was first identified and removed. A fused malleus‐incus, not visible on the preoperative CT, was found intraoperatively. Therefore, the fused malleus‐incus was removed; then, the ossicular chain was reconstructed, resulting in an improved postoperative hearing level. On preoperative CT, the disconnected incudostapedial joint had been identified, whereas the fused malleus‐incus had not. Given the variations in the malleus bar anomaly of the middle ear, the surgical procedure for ossiculoplasty should be adapted intraoperatively based on any findings not visible on the preoperative CT.