Shunya Hanakita1, Kentaro Watanabe1, Pierre-Olivier Champagne1, Sébastien Froelich2. 1. Department of Neurosurgery, Lariboisière Hospital, Assistance Publique - Hôpitaux de Paris, Paris Diderot University, 2 rue Ambroise Pare, 75010, Paris, France. 2. Department of Neurosurgery, Lariboisière Hospital, Assistance Publique - Hôpitaux de Paris, Paris Diderot University, 2 rue Ambroise Pare, 75010, Paris, France. sebastien.froelich@aphp.fr.
Abstract
BACKGROUND: Petroclival lesions are among the most complex to address in skull base surgery, being closely related to critical neurovascular structures and brainstem. The combined petrosectomy allows a wide exposure of large petroclival lesions with short working distance and provides multiple angles of attack, while limiting brain retraction. METHOD: We describe in a step-wise fashion the surgical steps of the combined petrosectomy. CONCLUSION: Combined petrosectomy with posterior transposition of the transverse-sigmoid sinus provides a wide surgical corridor to the ventral brainstem, middle and upper clivus, and infra-retrochiasmatic region.
BACKGROUND:Petroclival lesions are among the most complex to address in skull base surgery, being closely related to critical neurovascular structures and brainstem. The combined petrosectomy allows a wide exposure of large petroclival lesions with short working distance and provides multiple angles of attack, while limiting brain retraction. METHOD: We describe in a step-wise fashion the surgical steps of the combined petrosectomy. CONCLUSION: Combined petrosectomy with posterior transposition of the transverse-sigmoid sinus provides a wide surgical corridor to the ventral brainstem, middle and upper clivus, and infra-retrochiasmatic region.
Entities:
Keywords:
Anterior petrosectomy; Combined petrosectomy; Petroclival region; Posterior petrosectomy; Skull base surgery