NexGen_Complete_Knee_Solution_LPS_Surgical_Technique

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1、®NEXGENCOMPLETEKNEESOLUTIONSurgicalTechniqueForLegacy®PosteriorStabilizedKneesINTRODUCTIONTheMICRO-MILL®InstrumentationSystemhasbeendesignedtoprovideasimple,preciseandreproducibletechniquewithanumberofoptionsthatofferthesurgeonmorechoicesandgreaterflexibility.Inresectingthefemorala

2、ndtibialsurfacestoaccepttheprostheticcomponents,thesurgeoncanchoosebetweentheMillingTechniqueorthe5-in-1SawBladeTechnique.Inaddition,implantflexibilityofferstheopportunitytoswitchfromacruciateretainingprosthesistoaposteriorstabilizedprosthesisquicklyandeasily.Boththemillingand5-in-

3、1sawbladeproceduresaredesignedtocreatesmooth,accurateresectedsurfacesandprecisekneealignment.TheMillingTemplatesandthe5-in-1SawGuidesattachtothesameFemoralMountingBases,providinganaccurate,reproduciblereferenceforallfemoralprecisioncuts.Thishelpsavoidtheinaccuraciesthatcanbeassocia

4、tedwithmultipleinstrumentsetupsandreferencingresectedsurfaces.Theresultismoreaccurateandreproduciblefemoralresection,leadingtoimprovedfemoralfitandmoreprecisejointalignment.Thissurgicaltechniquewasdevelopedinconjunctionwith:AlfredJ.Tria,Jr.,M.D.ClinicalAssociateProfessorDivisionofO

5、rthopaedicsUniversityofMedicineandDentistry–NewJerseyRobertWoodJohnsonMedicalSchoolNewBrunswick,NJ.1PREOPERATIVEPLANNINGUsethetemplateoverlay(availablethroughyourZimmerrepresentative)todeterminetheanglebetweentheanatomicaxisandthemechanicalaxis.Thisanglewillbereproducedintraoperati

6、vely.Thissurgicaltechniqueensuresthatthedistalfemurwillbecutperpendiculartothemechanicalaxisand,aftersofttissuebalancing,willbeparalleltotheresectedsurfaceoftheproximaltibia.2STEPONEtruecenteroftheankleisabout5-10mmmedialtothemid-pointbetweenthemedialandlateralALIGNTHETIBIAmalleoli

7、.PositiontheproximalportionoftheInthisstep,thetibialcutisaligned,ensuringalignmentguidesuperiortothetibialtubercleproperposteriorslopeandrotationandthattheandcenteritmediolaterally.UsetheTibialresectionisperpendiculartothemechanicalaxis.DepthResectionGaugeinthedepthresectionslotont

8、hereferenceguide(Fig.3)toe