摘要
目的研究海绵窦上壁的显微解剖，为海绵窦直接显微手术的开展提供形态学依据。方法在手术显微镜下观察和测量了４４侧成人海绵窦上壁结构。结果海绵窦上壁呈纵长的四边形。外侧界为前床岩韧带和前床突外缘；内侧界为鞍隔的硬膜缘；前界为前床突基底部和镰状硬膜皱褶；后界为后床岩韧带。上壁的硬膜由浅、深两层组成，分别与外侧壁的浅、深层相延续。颈内动脉穿出海绵窦上壁时，浅、深两层硬膜分别形成远侧硬膜环和近侧硬膜环。将海绵窦上壁分成颈内动脉三角、动眼神经三角和床突间隙，这些区域无重要神经结构通过。结论在经海绵窦上入路直接显微手术中，利用上壁动眼神经三角。
Objective To study the microanatomical structures of the superior wall of the cavernous sinus in order to provide morphologic base for direct microsurgical operation to cavernous sinus Methods The superior wall of the cavernous simus was studied in 44 specimens from 22 adult cadacer heads Results The superior wall of cavernous sinus, longitudinal trapezoid in shape, was limited laterally by anterior petroclinoid ligament and lateral margin of anterior clinoid process, and medially by the dura of the diaphragma sellae, anteriorly by the base of anterior clinoid process and the falciform dural fold, and posteriorly by the posterior petroclinoid ligament The superior wall of cavernous sinus was formed by two layers: superficial dural layer and deep layer The clinoid segment of ICA was surrounded by two fibrous rings:a distal ring formed by the superficial dural layer and a proximal ring formed by the deep dural layer The superior wall of the sinus was divided into three areas: the carotid trigone, the oculomotor trigone and the clinoid space, where there was a relative lack of nerve structures Conclusion The superior approach to the superior wall of the sinus was directed through the oculomotor triangles, the carotid triangles, the clinoid space and the medial triangles safely
出处
《中华显微外科杂志》
CSCD
北大核心
1999年第2期130-132,共3页
Chinese Journal of Microsurgery
