Minim Invasive Neurosurg 2002; 45(3): 132-135
DOI: 10.1055/s-2002-34349
Original Article
© Georg Thieme Verlag Stuttgart · New York

Endoscope-Assisted Far-Lateral Transcondylar Approach to the Skull Base

N.  Hayashi1 , A.  R.  Cohen1
  • 1Division of Pediatric Neurosurgery, Rainbow Babies and Children’s Hospital, Department of Neurological Surgery, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
Further Information

Publication History

Publication Date:
26 September 2002 (online)

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.

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A. R. Cohen,M. D., F.A.C.S., F.A.A.P., Professor of Neurosurgery 

Division of Pediatric Neurosurgery · Rainbow Babies and Children's Hospital · Case Western Reserve University School of Medicine

11100 Euclid Avenue

Cleveland, OH 44106

USA

Phone: +1-216-844-8284

Fax: +1-216-844-5710 ·

Email: alan.cohen@uhhs.com