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作者对83个尸体标本进行了研究,认为人的视神经管是一种复杂的解剖结构,可有多种正常的变异。对其邻近组织及与该区手术暴露有关的界标和尺度作了记录,并对视神经管颅外减压的眶筛途径也进行了研究,以观察颅外进路是否可以将视神经充分减压。资料和方法:对尸体的83个视神经管的正常解剖及其变异在3—40倍放大镜下进行研究。暴露视神经管可通过眶筛径路到达。取标准的内眥切口,沿骨膜下剥离,暴露出泪囊、筛骨前后神经血管束和眶内侧壁。通过一个开口进入筛窦和蝶窦;即可暴露视神经管(图1)。此刻用一个金钢小钻和微型刮齿从内侧通过眶筛径路进行视神经管的完全减压术(图1)。
The authors conducted a study of 83 corpse specimens, that the human optic canal is a complex anatomical structure, there are many kinds of normal variation. The adjacent tissues and landmarks and scales related to the surgical exposure in this area were recorded and the orbital sieve pathway of extracranial decompression of the optic canal was also studied to observe whether the extracranial approach could fully decompress the optic nerve. Materials and Methods: Normal anatomy of the 83 optic nerve tubes of the body and its variation were studied under a magnifying glass of 3-40 magnification. The exposed optic canal can be reached through the orbital pathway. Take the standard incision, subperiosteal dissection, exposing the lacrimal sac, ethmoid before and after the neural vascular bundles and orbital wall. Enter the ethmoid and sphenoid sinus through one opening; expose the optic canal (Figure 1). At this point with a small diamond and micro-scraping of steel from the medial through the orbital path for complete decompression of the optic canal (Figure 1).