Journal
CLINICAL NEUROLOGY AND NEUROSURGERY
Volume 104, Issue 4, Pages 387-391Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0303-8467(02)00022-7
Keywords
anatomy; cerebellar pontine angle; cranial nerve; endoscopy; posterior fossa approach
Categories
Ask authors/readers for more resources
This anatomic study describes how to optimize the use of the endoscope in the cerebellar pontine angle (CPA) through a retrosigmoid approach. Unlike the microscope, that only permits visualization of structures directly ahead, the endoscope can see 'around the corner', also showing the structures down narrow. Nevertheless, to use the endoscope it is necessary to insert it into the CPA that is full of neurovascular structures which limit its movements. Thus, to avoid damages it is important to inspect this region accurately, by means of preferential trajectories to insert the endoscope. A retrosigmoid approach was performed in cadaver heads, and the CPA region was inspected employing 0degrees, 45degrees rigid endoscopes (4 mm in diameter). The neurovascular structures of the CPA have been visualized using three trajectories. The limits of view offered by each trajectory as well as the neurovascular structures together with the obstacles encountered on each route have been described. The systematic adoption of three different endoscope trajectories at the CPA level permits to view from different angulation the same structure as well as its relationships with the surrounding nerves and vessels. Considerable experience on cadavers should have already been obtained with the endoscope prior to any application in the operating room. (C) 2002 Elsevier Science B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available