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  • Title: Trautmann-focused mastoidectomy for a simple, safe presigmoid approach: technical note.
    Author: Tanahashi K, Uda K, Araki Y, Takeuchi K, Choo J, Chalise L, Motomura K, Ohka F, Wakabayashi T, Natsume A.
    Journal: J Neurosurg; 2021 Mar 01; 134(3):843-847. PubMed ID: 32217804.
    Abstract:
    The presigmoid approach (PSA) is selected to obtain more lateral access to cerebellopontine angle tumors, brainstem cavernous malformations, or vertebrobasilar artery aneurysms than the standard retrosigmoid approach. However, mastoidectomy for the PSA can be considered time-consuming and to carry a higher risk of complications due to the anatomical complexity of the region. The authors established a method of minimized mastoidectomy focused on exposing Trautmann's triangle as the corridor for the PSA while maximizing procedural simplicity and safety and maintaining a sufficient operative view. The authors present their method of minimized mastoidectomy in a cadaver dissection and operative cases, showing potential as a useful option for the PSA.
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