Surgical aspects of cochlear implantation: mechanisms of insertional trauma.
Surgical aspects of cochlear implantation: mechanisms of insertional trauma.
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DOI：
10.1159/000094642
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发表时间：
2006-01-01
影响因子：
--
通讯作者：
Wright, Charles G
中科院分区：
文献类型：
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作者：
Roland, Peter S;Wright, Charles G
混合式电声装置的发展使得保留残余听力成为人工耳蜗植入手术的一个重要目标。我们的实验室最近进行了解剖学研究，旨在更好地了解与电极插入相关的残余听力损失的机制。本文提供了一个基于显微解剖，扫描电子显微镜和颞骨组织学的观察，可能会发生在植入手术中的内耳损伤的概述。耳蜗结构，包括侧壁组织，基底膜，骨螺旋板和蜗轴的创伤被认为是与听力保护的特定类型的损伤的影响。这些发现与未来植入器械的设计以及与用于植入的手术技术相关的各种重要问题相关，包括可能使用圆窗作为电极插入的入口。
The development of hybrid electroacoustic devices has made conservation of residual hearing an important goal in cochlear implant surgery. Our laboratory has recently conducted anatomical studies directed toward better understanding mechanisms underlying loss of residual hearing associated with electrode insertion. This paper provides an overview of observations based on microdissection, scanning electron microscopy and temporal bone histology relating to inner ear injury that may occur during implant surgery. Trauma to cochlear structures including lateral wall tissues, the basilar membrane, the osseous spiral lamina and the modiolus is considered in relation to the implications of specific types of injury for hearing preservation. These findings are relevant to the design of future implant devices and to various important issues regarding the surgical technique used for implantation, including the possible use of the round window as a portal of entry for electrode insertion.