Applied Anatomy of the Trochlear Nerve in the Tentorial Lateral Region_West China Medical Journal

Authors：

LIU Weihua

1.The First Affiliated Hospital of Chengdu Medicine College Research Division; 2.Department of Human Anatomy of Chengdu Medicine College, Chengdu 610500, China;

Corresponding?author：

Keywords：

滑車神經; 小腦幕側方區域; 應用解剖

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目的:通過對滑車神經行經小腦幕側方區域的應用解剖學研究,尋找小腦幕側方區域手術時避免損傷滑車神經的臨床解剖標志。方法:對15例（男10例,女5例）防腐固定無畸形、無病變的成人頭顱標本用紅色乳膠灌注后,10倍手術顯微鏡下觀察滑車神經在小腦幕側方區域的行徑,及其與周圍重要神經、血管結構的毗鄰關系,測量滑車神經長度、寬度、厚度及其與周圍標志點的距離,并對所得結果進行統計學分析。結果:滑車神經在小腦上動脈和大腦后動脈之間向前行,進入小腦幕側方區域,在動眼神經三角的后部穿越游離緣硬膜,其長度為（6.78±1.87）mm,寬度為（1.09±0.21）mm,厚度為（0.78±0.11）mm。滑車神經進入小腦幕側方區域的入口處位于前床突、頸內動脈床突上段起始部、動眼神經入口后方,位于后床突后外方；距離前床突（23.24±3.18）mm、頸內動脈床突上段起始部（17.57±3.26）mm、動眼神經入口（11.42±3.32）mm；距離后床突（14.21±3.25）mm。結論:行小腦幕側方區域手術時,為避免損傷滑車神經,前床突、后床突、頸內動脈床突上段起始部和動眼神經入口可以作為尋找滑車神經入口的重要標志,同時注意區分小腦上動脈和大腦后動脈。

Citation： LIU Weihua,ZHOU Hongli. Applied Anatomy of the Trochlear Nerve in the Tentorial Lateral Region. West China Medical Journal, 2009, 24(3): 683-685. doi: Copy

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1.
2.
3. SEKHAR L N, JANNETTA P J, MAROON J C.Tentorial meningiomas: surgical management and results[J].Neurosurgery,1984,14（3）:268-275.
4. GUIDETTI B, CIAPPETTA P, DOMENICUCCI M.Tentorial meningiomas: surgical experience with 61 cases and longterm results[J].J Neurosurg,1988,69（2）:183-187..
5. ASARI S, MAESHIRO T, TOMITA S,et al.Meningiomas arising from the falcotentorial junction.Clinical features, neuroimaging studies, and surgical treatment[J].J Neurosurg,1995,82（5）:726-738..
6. GOKALP HZ, ARASIL E, ERDOGAN A,et al.Tentorial meningiomas[J].Neurosurgery,1995,36（1）:46-51..
7. SAMII M, CARVALHO GA, TATAGIBA M,et al.Meningiomas of the tentorial notch:surgical anatomy and management[J].J Neurosurg,1996,84（3）:375-381..

West China Medical Journal

Applied Anatomy of the Trochlear Nerve in the Tentorial Lateral Region

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