Objective: To investigate the surgical technique of trans-frontotemporal extended epidural approach to the cavernous sinus.
Methods: A microsurgical study on the exposure and dissection of the cavernous sinus and its surrounding structures on cadavers was performed via an extended epidural approach with frontotemporal skull-base craniectomy.
Results: The extended epidural approach offered an appropriate exposure of the cavernous sinus with minimal brain retraction and nerve damage.
Conclusions: The extended frontotemporal epidural surgical approach is superior to the routine intradural or combined epi- and intradural approaches. It is suitable for most of the cavernous sinus surgeries.