乙状窦前入路磨除岩部后壁的应用解剖  

Applied an atomy of drilling the posterior wall of the petrous pyramid through transpetrous presigmoid approach

作　　者：王玉海[1] 卢亦成[1] 王春莉[2] 袁国梁[1] 楼美清[1] 

机构地区：[1]第二军医大学长征医院神经外科,上海200003 [2]解放军第101医院传染科

出　　处：《第二军医大学学报》2001年第8期741-743,共3页Academic Journal of Second Military Medical University

基　　金：上海市优秀学科带头人基金资助项目( 99XD1 40 0 2 )

摘　　要：目的 :为经颞骨岩部乙状窦前入路颞骨岩部的磨除提供解剖依据。 方法 :用 1 5例成人尸头湿标本模拟经颞骨岩部乙状窦前入路进行磨除颞骨岩部的显微解剖研究。 结果 :岩部后壁磨除的范围可用一三角形表示 :从岩乙状窦交叉点到后半规管最后部可磨除深度是 4 .52 mm;从后半规管最后部到前庭小管可磨除深度是 2 .1 4mm;从前庭小管到总脚可磨除深度是1 .88mm;从总脚到三角形的底可磨除深度是 2 .3 6mm。 结论 :岩乙状窦交叉点。Objective: : To provide anatomical basis for drilling the po sterior wall of the petrous pyramid through transpetrous presigmoid approach. Methods: A microanatomy study using 15 cadaveric adult heads on dr illing petrous bone was peformed through transpetrous presigmoid approach. Results: A triangle could be used to stand for the drilling range.In this triangle,drilling depth was 4.52 mm from the petrosigmoid intersection (PS) to the most posterior portion of the posterior semicircular canal,2.14 mm from the most posterior portion of the posterior semicircular canal to the vestibular aqueduct, 1.88 mm from the vestibular aqueduct to the common crus, and 2.36 mm from common crus to the trianglar base. Conclusion: PS and f issure of endolymphatic sac are important landmarks in drilling petrous bone.

关 键 词：乙状窦前入路 颞骨岩部 迷路 局部解剖学 岩斜区病变 

分 类 号：R651.1[医药卫生—外科学] R602[医药卫生—临床医学]