Abstract
Background: Surgical excision of petroclival meningiomas remains a challenge for neurosurgeons. The complex anatomy of the petroclival region and the location of the target lesion are the main determinates when selecting an optimal surgical approach. Extradural anterior petrosectomies are commonly used in the resection of petroclival meningiomas, though the application of temporal retraction carries the risk of the venous complications. Endoscopic anterior clinoidectomies have recently been proposed to access lesions of this region. We investigate a less invasive 3D endoscopic anterior transpetrosal approach through a subtemporal keyhole craniotomy using a minimally invasive tubular retractor system for the management of petroclival meningiomas.
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