筛动脉眶内段及窦内段的应用解剖研究

目的：研究筛动脉的走行规律及局部位置关系，为筛窦手术和视神经管减压术提供参考。方法：采用显微解剖学技术对６０ 侧成人筛动脉眶内段和窦内段进行观察和测量。结果：筛前动脉眶内段长（５．１６±１．２４）ｍ ｍ ，管径为（０．５６±０．１７）ｍ ｍ ；筛后动脉眶内段长（９．０８±２．２９）ｍ ｍ ，管径为（０．３７±０．１４）ｍ ｍ 。筛动脉的周围有致密结缔组织构成的筋膜鞘，该鞘包绕与之并行的筛神经和筛静脉，筋膜鞘在筛动脉窦内段亦存在。筛动脉窦内行程有三种类型：走在骨管内；走在筛房顶壁和筛粘膜之间；部分走在骨管内。结论：在筛窦手术或视神经管减压术中，正确寻找和处理筛动脉有重要意义

Applied anatomic study on intraorbital and intraethmoidal parts of ethmoidal artery

OBJECTIVE: In order to provide anatomic data for operation of ethmoidal sinus and optic canal decompression. METHOD: Using microanatomic method, the intraorbital and intraethmoidal parts of ethmoidal arteries were observed and measured. RESULT: The length of intraorbital segment of anterior ethmoidal artery was 5.16 +/- 1.24 mm, and its diameter was 0.56 +/- 0.17 mm; the length of intraorbital segment of posterior ethmoidal artery was 9.08 +/- 2.29 mm, with diameter 0.37 +/- 0.14 mm. The ethmoidal artery, nerve and vein were surrounded by fascial sheath which could extend to ethmoidal sinus. Three variants of ethmoidal arteries could be found: It passed through bony canal; It went between the superior wall of ethmoidal cell and ethmoidal mucosa; One part went through bony canal, but the other did not. CONCLUSION: It was important to find ethmoidal artery in operation of ethmoidal sinus and optic canal decompression.