Abstract
The far-lateral transcondylar approach was used in this cadaveric study in an attempt
to evaluate the usefulness of endoscope-assisted microsurgery in this region of the
skull base. The study was carried out using 4 latex-injected, formalin-fixed cadaver
heads. After initial examination of intradural structures under an operating microscope,
a zero degree 4 mm diameter solid-rod endoscope lens was introduced and guided into
position under the direction of the operating microscope. Photographs of the regional
anatomy were taken through this lens and through a 30 degree angled lens and compared
to photographs of the anatomy taken through the microscope. Clear close-up views of
the dural portals and intradural course of the cranial nerves were obtained using
the endoscope. The endoscope was introduced through three corridors enclosed with
cranial nerves, providing the surgeon with panoramic views of the vertebrobasilar
arteries and anterior brainstem surface. The endoscope can be guided through narrow
corridors and placed immediately adjacent to a region of interest at the skull base.
It enables the surgeon to look around blind corners and work behind structures that
are hidden from microscopic view.
Key words
Aneurysm - Brain Tumor - Endoscopy - Far-Lateral Approach - Microsurgery - Skull Base
Surgery
References
alan.cohen@uhhs.com
