Tubbs R S, Oakes W J
Department of Cell Biology, University of Alabama at Birmingham, USA.
J Neurosurg. 1998 Dec;89(6):1015-9. doi: 10.3171/jns.1998.89.6.1015.
The cisternal portion of the trochlear nerve (fourth cranial nerve) can easily be injured during intracranial surgical operations. To help minimize the chance of such injury by promoting a thorough understanding of the anatomy of this nerve and its relationships to surrounding structures, the authors present this anatomical study.
In this study, in which 12 cadaveric heads (24 sides) were used, the authors describe exact distances between the trochlear nerve and various surrounding structures. Also described are relatively safe areas in which to manipulate or enter the tentorium, and these are referenced to external landmarks.
This information will prove useful in planning and executing surgical procedures in and around the free edge of the tentorium cerebelli.
滑车神经（第四脑神经）的脑池段在颅内外科手术期间很容易受到损伤。为了通过促进对该神经的解剖结构及其与周围结构关系的全面了解，以帮助将此类损伤的几率降至最低，作者进行了这项解剖学研究。
在本研究中，使用了12个尸体头部（24侧），作者描述了滑车神经与各种周围结构之间的确切距离。还描述了在小脑幕上进行操作或进入小脑幕的相对安全区域，并以外部标志为参照。
这些信息将证明在小脑幕游离缘及其周围规划和实施手术过程中很有用。
