Title: The Microanatomic Study of the Endoscope-assisted Suboccipital Transcondylar Keyhole Approach
Abstract: Objective:To explore the possibility of far-lateral keyhole approach in an attempt to apply endoscope and minimally invasive keyhole skill.Methods:Ten adult cadaver heads,fixed with formalin and the intracranial vessels perfused with red and blue latex,were used in this study.A longitudinal 'S' shape skin incision about 7 cm was performed with its super border 2 cm behind the middle point of mastoid and inferior margin at the level of C2.After inverting suboccipital muscles and exposing the far lateral of the occipital bone,a bone flap(3 cm in diameter)was cut with a craniotome and the cerebellar hemisphere was retracted.The exposed anatomic structures were observed under microscope and endoscope.Results:By adjusting endoscope and the angle of microscope,the ispilateral vertebral artery,posterior inferior cerebellar artery,anterior inferior cerebellar artery,VII,VIII,IX,X,XI and Xll cranial nerves and the ventrally lateral aspect of medulla oblongata were exposed via this keyhole approach.Conclusion:With the technology of modern microsurgery and endoscope,several diseases in cranio-cervical junction region can be operated on via this far-lateral keyhole approach without drilling jugular tubercle.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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