Extended Posterior Petrosectomy
Last Updated: September 30, 2018
There are several variations of the posterior transpetrosal approach (posterior petrosectomy or presigmoid approach) that differ in the magnitude of petrous pyramid osteotomy.
The progressive degrees of bone removal of the otic capsule provide some advantages, mostly for gaining further access to the anterolateral brainstem and medial clivus. When combined with a subtemporal approach, the posterior petrosectomy expands the exposure as high as CN IV and as low as the jugular tubercle.
In this chapter, I will describe the techniques for extended posterior...