Transcanal surgery for vestibular schwannomas: a pictorial review of radiological findings, surgical anatomy and comparison to the traditional translabyrinthine approach
Transcanal surgery for vestibular schwannomas: a pictorial review of radiological findings, surgical anatomy and comparison to the traditional translabyrinthine approach
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DOI：
10.1007/s00405-017-4630-8
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发表时间：
2017-09-01
影响因子：
2.6
通讯作者：
Marchioni, Daniele
中科院分区：
文献类型：
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作者：
Alicandri-Ciufelli, Matteo;Federici, Gaia;Marchioni, Daniele
前庭神经鞘瘤 (VS) 切除术最常用的方法是乙状窦后切除术、中颅窝切除术和经迷路切除术 (TL)。所有这些都需要一定程度的侵入性、骨质去除或大脑操纵。最近，作者描述了经耳道经门突入路 (TTA)，该方法允许通过外耳道 (EAC) 直接进入内耳，可以使用显微镜（扩展 TTA 或 ExpTTA），甚至可以使用独家内窥镜技术（内镜 TTA 或 EndoTTA）。与传统方法相比，其优点是可以从外侧到内侧直接观察内耳道（IAC），很少或没有浅表组织解剖以及很少的岩骨钻孔。总之，从解剖学的角度来看，它们可以被认为是微创方法。描述了这些新入路的放射学结果和解剖学对应性，以便与读者分享可能的放射学发现，并将它们与经典的经岩入路（例如 TL 入路）进行比较和区分。4。
The most popular approaches for vestibular schwannoma (VS) removal are retrosigmoid, middle cranial fossa and translabyrinthine (TL). All require a certain degree of invasivity, bone removal, or brain manipulation. Recently, the authors described the transcanal transpromontorial approaches (TTA), which allow the inner ear to be accessed directly through the external auditory canal (EAC), either with a microscopic (Expanded TTA, or ExpTTA) or even an exclusive endoscopic technique (Endoscopic TTA, or EndoTTA). The advantages compared to traditional approaches are a direct view of the internal auditory canal (IAC) from lateral to medial, very little or no superficial tissue dissection and very little petrous bone drilling. In summary, from an anatomical point of view, they could be considered to be minimally invasive approaches. The radiologic outcome and the anatomical correspondence of these new approaches are described so as to share with the readers the possible radiologic findings and to compare and differentiate them from classic transpetrous approaches such as the TL approach.4.