Anatomical characteristics of endoscopic extended transnasal approach to clivus region
XU Dedong
WANG Wenbo
LI Yong
DUAN Zhenying
YAO Hanxun
QI Shengjin
XIA Xuewei
Abstract：Objective To observe the anatomic landmarks of the endoscopic extended transnasal approach to the cliv-us region, which provides anatomic basis for the approach.Methods Five formalin-fixed adult cadaveric head specimens were used, a rigid endoscope ( Karl Storz) was inserted into the bilateral nasal cavity for simulating the endoscopic extend-ed transnasal approach to the clivus region.Results The clivus regions were divided into three parts:the upper, the mid-dle and the lower clivus.Bony landmarks of the clivus regions were presented, such as parasellar internal carotid arterial canal bulge, internal carotid arterial canal bulge and optic canal bulge etc.Intradural anatomic landmarks were the posteri-or cerebral artery, superior cerebellar artery, basilar artery, cranial nerveⅥ, pons, vertebral artery, cranial nerveⅨ-Ⅻand medulla oblongata.Conclusion The anatomic landmarks of the endoscopic extended transnasal approach to the clivus region are clearly defined, and the approach can be performed according to the anatomic landmarks.
Keywords：neuroendoscopyextended transnasal approachclivus regionanatomy
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 9-11 )