桥小脑角微血管减压手术入路解剖.pdf

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1、61O江苏医药ZOO6年7月第3Z卷第7期JiangsuMedJJulyZOO6Vol3ZNo.7论著桥小脑角微血管减压手术入路解剖韦永祥梁维邦倪红斌蒋健!摘要"目的为桥小脑角微血管减压手术提供针对性的解剖学数据方法选取1O具甲醛固定尸体标本模拟侧卧手术体位经乙状窦后入路行解剖测量测量双侧共计ZO侧结果手术入路中深部相关结构距骨窗(乙状窦横窦移行处>的距离:面听神经出脑干区为(4.11O.37>cm三叉神经入脑干区为(4.47O.4Z>cm两者间距为(O.68O.16>cm小脑水平裂中点与前方骨壁

2、的距离(代表桥小脑角池的宽度>(O.Z6O.1O>cm小脑绒球最高点的垂直高度(O.34O.O9>cm岩静脉在手术入路中与三叉神经根入脑干区密切关系小脑腹侧面与神经根关系密切的血管主要为小脑上动脉~小脑下前动脉和小脑下后动脉结论在桥小脑角微血管减压术中骨窗的位置桥小脑角蛛网膜下腔的宽度小脑绒球的大小岩静脉的位置等为入路中重要的解剖学标记脑神经周围的动脉~静脉等结构与脑神经的位置关系与脑神经的压迫综合征的发病机制有密切关系!关键词"微血管减压术;桥小脑角解剖;乙状窦后入路Theanatomyofmi

3、crovasculardecompressionoperationapproachWEIYOn8xian8LIANGWeiban8NIHOn8binetal.DePartmentO]NeurOsur8eryDrumTOwerHOsPitalMedicalCOlle8eO]Nanin8UniversityNanin8Z1OOO8CHINAAbstractObectiveToprovidetherelativeanatomicaspectsforthesurgicalapproachofmicrvas

4、culardecompression(MVD>operation.MethodsTencadavericspecimensof6menand4womenwereanatomizedandmeasuredinanalogueparkbenchoperationpositionbilaterally.ResultsDistanceofthefacialnervefromthebrainstemtothemeetingpointofthetransverseandsigmoidsinusesaverag

5、ed(4.11O.37>cmbetweentrigeminalnerverootentryzone(4.47O.4Z>cm.Andthedistancebetweenthemaveraged(O.68O.16>cm.Thedistancefrommedpointofhorizontalfis-sureofthecerebellumtoanteriorbonewall(thewidthofthecerebellopontineanglecistern>was(O.Z6O.1O>cm.Theverti

6、caldistanceofflocculusaveraged(O.34O.O9>cm.Thepetrosalveinhadacloserelationshiptothetrigeminalnerverootentryzone.Andthesuperiorcerebellarartery(SCA>anteriorinferiorcerebellarartery(AICA>andtheposteriorinferiorcerebellarartery(PICA>hadacloserelationshi

7、ptobrainnerveroot.ConclusionTheskullboneholewidthofthecerebellopontineanglecisternhighoftheflocculusandpositionofpetrosalveinetc.areveryimportantaspectsintheMVDoperationapproach.Thepositionofarteryandveinaroundthebrainnerverootsisrelatedtothepathogene

8、sisofbrainnervecompressionsyndrome.KeywordsMicrovasculardecompressionoperation;Anatomyofcerebellopontine;RetrosigmoidapproachJian8suMedJJulyZOO63Z(7>:61O-61Z.]本世纪6O年代Jannatta应用微血管减压术1O具甲醛固定尸体标本男6具女4具普通(microvasculardecompressionMVD>治疗桥小脑解剖工具头架