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作 者:陶存山[1] 卢亦成[2] 楼美清[2] 王冰心[1] 汪亮[1] 李文[1] 张康[1] 蒋建华[1]
机构地区:[1]中国人民解放军第359医院神经外科,江苏镇江212001 [2]中国人民解放军第二军医大学附属长征医院神经外科,上海200003
出 处:《中国微侵袭神经外科杂志》2005年第8期363-365,共3页Chinese Journal of Minimally Invasive Neurosurgery
摘 要:目的观察视神经管的解剖结构以及视神经管磨除前后相关结构显露范围的变化,为手术提供解剖依据。方法手术显微镜下观察、测量15例成人干颅骨和15例经甲醛溶液固定的成人尸头。结果视神经管的最狭窄部位在中部,其横截面积为(17.21±3.74)mm2。眼动脉均在视神经下方的管底硬膜层内走行。视神经管上壁磨除前视神经颈内动脉(OCT)三角宽度为(3.61±1.35)mm;磨除后为(7.16±1.42)mm。结论视神经管在管中部对视神经的束缚作用最强;眼动脉均在视神经下方的管底硬膜层内走行,因此沿视神经纵行剪开其上方的硬膜是安全的。Objective To provide anatomic evidence for operation based on the anatomic characteristics of the optic canal and the change of exposed range between pre- and post-resection of the roof of the optic canal. Methods Fifteen dry adult cadaveric heads and 15 formalin-fixed cadaveric head specimens were measured for the relative structures under the operative microscope. Results The middle part of the optic canal was the narrowest, with a transverse area of(17.21 ± 3.74) mm^2. The width of opticocarotid triangle was (3.61 ±1.35) mm before grinding the upper wall of the optic canal, and (7.16 ± 1.42) mm after the grinding. Conclusion The middle of the optic canal has the strongest restrictive effect on the optic nerve. Since the ophthalmic artery commonly courses beneath the optic nerve in the dura, it is safe to incise the dura vertically over it.
分 类 号:R322[医药卫生—人体解剖和组织胚胎学]
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