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S.T.A.R. Ankle Surgical Technique - PGT Instrumentation

S.T.A.R. Ankle Surgical Technique - PGT Instrumentation

ID：40352841

大小：5.91 MB

页数：24页

时间：2019-07-31

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1、S.T.A.R.®ScandinavianTotalAnkleReplacementSURGICALTECHNIQUECONTENTSDescriptionOverview1Components2Indications/ContraindicationsContraindications,Warnings/Precautions&Post-OperativeManagement3SurgicalTechniquePlacementofTheTibialAlignmentGuide6PreparationoftheTalus8Anterior/PosteriorCutGuide11Media

2、l/LateralCutGuide12FinalTibialPreparation16TalarComponentImplantation17TibialComponentImplant17Closure18ImplantDimensions19PostoperativeTreatment21ObtainingX-ray21AdditionalInformation21Caution:UnitedStatesfederallawrestrictsthesedevicestosalebyorontheorderofaphysician.DescriptionOverviewTheS.T.A.

3、R.®Anklesystemincludesthreefunctionalcomponents,andasetofcustomizedaccessoryinstrumentsthatareusedinthesurgicalprocedure.Thethreeprincipalcomponentsoftheprosthesisare:•Ametaltibialcomponentwithtitaniumplasmaspraycoating;•Anultrahighmolecularweightpolyethylenemobilebearing;and•Ametaltalarcomponentw

4、ithtitaniumplasmaspraycoating.Themobilebearingarticulatesonthetibialandtalarmetalimplantsurfaces,asshowninthephotographofthethreecomponentsoftheS.T.A.R.®Anklesystembelow:TibialPlateMobileBearingTalarComponentTheS.T.A.R.®Ankleisdesignedtoreplaceaportionofthetibialandtalarcomponentsofthenormalanklej

5、oint,whilepreservingrangeofmotionasmuchaspossible.TherearetwobearingsurfacesintheS.T.A.R.®Ankle:(1)theinterfacebetweentheuppersideofthemobilebearingandthefacingsurfaceofthetibialplate,and(2)theinterfacebetweenthelowersurfaceofthemobilebearingandthefacingsurfaceofthetalarcomponent.Thetibialplatehas

6、oneflatsurfaceandonesurfacewithtworaisedcylindricalbarrelsorientedintheanterior/posteriordirection.Theupperflatsurfaceofthemobilebearingslidesagainsttheflatsurfaceofthetibialplate.Theprojectingcylindersofthetibialplateservetofixthedevicetoboneatthedistaltibia.Thelowersurfaceofthemobilebearingiscon

7、cave,fittingagainsttheconvexuppersurfaceofthetalarcomponent.1Themobilebearingdesignofthedeviceisintendedtoreducetheshearandtorqueforcesonthebearing,whichcanleadtolooseningofeithermetalcomponent,andtodecreasestres

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