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  • Title: The paramedian supracerebellar transtentorial approach to the posterior fusiform gyrus.
    Author: Chau AM, Gagliardi F, Smith A, Pelzer NR, Stewart F, Mortini P, Elbabaa SK, Caputy AJ, Gragnaniello C.
    Journal: Acta Neurochir (Wien); 2016 Nov; 158(11):2149-2154. PubMed ID: 27677522.
    Abstract:
    BACKGROUND: The posterior fusiform gyrus lies in a surgically challenging region. Several approaches have been described to access this anatomical area. The paramedian supracerebellar transtentorial (SCTT) approach benefits from minimal disruption of normal neurovascular tissue. The aim of this study was to demonstrate its application to access the posterior fusiform gyrus. METHODS: Three brains and six cadaveric heads were examined. A stepwise dissection of the SCTT approach to the posterior fusiform gyrus was performed. Local cortical anatomy was studied. The operability score was applied for comparative analysis on surgical anatomy. RESULTS: The major posterior landmark used to identify the fusiform gyrus with respect to the medial occipitotemporal gyrus was the collateral sulcus, which commonly bifurcated at its caudal extent. Compared with other surgical approaches addressed to access the region, SCTT demonstrated the best operability in terms of maneuverability arc. Favorable tentorial anatomy is the only limiting factor. CONCLUSIONS: The supracerebellar transtentorial approach is able to provide access to the posterior fusiform gyrus via a minimally disruptive, anatomic, microsurgical corridor.
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