听神经瘤不同手术入路显微解剖比较的研究

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1、作者姓名：学科专业：学院(系、所)：指导教师：沙米尔外科学(神经外科)湘雅医院袁贤瑞教授论文答辩日期墅!l二垒亘锣答辩委员会主席中南大学2011年5月一主移￡0l本人了解中南大学有关保留、使用学位论文的规定，即：学校有权保留学位论文并根据国家或湖南省有关部门规定送交学位论文，允许学位论文被查阅和借阅；学校可以公布学位论文的全部或部分内容，可以采用复印、缩印或其它手段保存学位论文。同时授权中国科学技术信息研究所将本学位论文收录到《中国学位论文全文数据库》，并通过网络向社会公众提供信息服务。作者签名：签彩移毗年翊血Objectives：ABSTRACTTostudy3appro

2、achesofvestibularschwannomasurgery-Retrosigmoid，middlefossaandTranslabrynthineapproachincadavericheadsbydescribingthemicroanatomyofexposedstructurewithsnapshots，labelanddescription，tobroadentheunderstandingofthestructuresofposteriorfossa,cerebellopontineangle，andmiddlefossafrom3differentvi

3、ews；focusingbasicallyonretrosigmoidapproach．Thisstudyalsodescribestheadvantageanddisadvantageofeachapproachandtogetheritgivesadetailanatomyofintracranial，skullbaseandextracranialstructuresexposedusingthreeapproaches．Therelatedneurovascularstructuresandtheirrelationshipwiththe锄acentstructur

4、eswerealsostudied，theknowledgeofwhichisessentialforthesaferesectionofvestibularschwannomapreservingnormalstructuresanatomicallyandfunctionally．Observationandmeasurementofdifferentbonylandmarksthatprovidesavaluableinformationandorientationofdifferentstructureinskullbasesurgerywerealsoperfor

5、medindryskull．ThestudyWasperformedasapartoftrainingtoresidents，forbetterlearningofthebasicmicrosurgicalskills，drillingmethodsandasacourseforresidenthandonCadavers．Themethodsusedforcadavericpreparation，preservationandthefactorsthatareresponsibleforeffectivedissectionwerealsopointedoutinthis

6、study．StudydesignandsettingsThisstudyWasperformedattheSkullbasemicro-neurosurgeryLaboftheDepartmentofNeurosurgeryofXiangyaHospitalofCentralSouthUniversity(csu)，andwasapprovedbytheethicscommitteefortheAssessmentofResearchProjectsfromtheClinicalBoardoftheUniversityHospitaloftheCentralSouthUn

7、iversity．5alcoh01fixedcadavericheads(1Osides)wereinfusedwithcoloredsiliconandwasdissectedstepwisetostudythemicroanatomyofthestructuresexposedthroughthreeapproachesthatareappliedfortheresectionofvestibularschwannoma：retrosigmoid，middlefossa，andtranslabyrinthine