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PurposeThepurposeofthisstudyistoevaluatethetheclinicaloutcomes,complications,andsurgicaltrauma betweenanteriorandposteriorapproachesforthetreatmentofmultilevelCSM.Study design Systematicreviewandmeta-analysis.MethodsRandomizedcontrolledtrialsornon-randomizedcontrolledtrialspublisheduptoNovember 2014that comparedtheclinicaleffectivenessofanteriorandposteriorsurgicalapproachesforthetreatmentofmultilevel CSMwereacquiredbyacomprehensivesearchinfourelectronicdata-bases(PubMed,EMBASE,Cochrane ControlledTrialRegisterandMEDLINE).