• Adv Tech Stand Neurosurg · Jan 2007

    Review

    Surgical anatomy of the petrous apex and petroclival region.

    • H D Fournier, P Mercier, and P H Roche.
    • Departement de Neurochirurgie, Hôpital Ste Marguerite, Marseille, France.
    • Adv Tech Stand Neurosurg. 2007 Jan 1;32:91-146.

    AbstractSurgical exposure of the clivus, the ventral or lateral aspect of the brain stem, and all the intradural structures of the petroclival area remains difficult because of the presence of the petrous apex and peripetrous complex. However, a lateral skull base approach to the petroclival area is the most suitable approach if the lesion to be resected lies medial to the fifth nerve, in front of the acousticofacial bundles, extending towards the midline. The purpose of this study is to review the topographic anatomy of the petrous apex and peripetrous structures, with emphasis on the relationships important to the lateral approaches to the petroclival area. Such anatomical knowledge allows us to study the surgical technique, exposure, and pitfalls of the main lateral transpetrosal skull base approaches used to reach the petroclival area.

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