解剖学杂志2018，Vol.41Issue(2)：172-174,195,封4,5.DOI:10.3969/j.issn.1001-1633.2018.02.011
经脑干腹侧至面神经脑桥小脑三角段的显微外科解剖
Microsurgical anatomy of cerebellopontine angle segment of the facial nerve through ventral brainstem
摘要
Abstract
Objective:To study the anatomical relationship between cerebellopontine angle segment of facial nerve and surrounding neurovascular structures and to offer anatomic parameters for treating hemifacial spasm with microvascular decompression.Methods:Fifteen adult head specimens were exposed to the ventral surface of the brainstem through oropharynx to clivus.Microscopic measurements were made on the sections and structures around the cerebellopontine angle segments of the facial nerve.Results:The distance from root detachment point of facial nerve to root exit point of facial nerve,internal acoustic pore were (6.08±0.85) mm,(11.55 ± 1.11) mm.The distance from root detachment point of vestibulocochlear nerve to root enter point of vestibulocochlear nerve,internal acoustic pore were (6.86±0.91) mm,(10.20±1.19) mm.The root exit point and root detachment point of facial nerve were important regions of decompression of facial nerve,which were located in the inner side of root exit point of glossopharyngeal nerve,root detachment point of vestibulocochlear nerve,inside edge of flocculus.The distance from root exit point of facial nerve to root exit point of glossopharyngeal nerve,root detachment point of vestibulocochlear nerve,inside edge of flocculus were (2.12±0.44) mm,(6.32±0.76) mm,(5.65± 0.99) mm,respectively.The distance from root detachment point of facial nerve to root exit point of glossopharyngeal nerve,root detachment point of vestibulocochlear nerve,inside edge of flocculus were (5.95 ± 0.70) mm,(1.18±0.53) mm,(2.98±0.73) mm,respectively.Conclusion:The root exit point of the facial nerve and the root detachment point of facial nerve are the focal point of decompression and can avoid the damage during operation for it closely related to the vascular compression and deep space.Glossopharyngeal nerve,vestibulocochlear nerve,and flocculus are important signs for fast positioning of cerebellopontine angle segment of facial nerve to decompression in the operation.关键词
脑干腹侧/面神经/脑桥小脑三角段/显微外科解剖Key words
ventral brainstem/facial nerve/cerebellopontine angle segment/microsurgical anatomy引用本文复制引用
代飞虎,董吉荣..经脑干腹侧至面神经脑桥小脑三角段的显微外科解剖[J].解剖学杂志,2018,41(2):172-174,195,封4,5.
