NexGen-LCCK内部培训资料

NexGen

LegacyCCK

(LCCK)NexGen

LegacyCCK

适应症

不稳定膝关节需要高度限制性设计

存在严重骨缺损需要金属垫块

特点

从属于NexGen

CompleteSolution产品系列

既有通用性，又有特殊性

在LegacyPS假体基础上设计

既可用于困难的初次手术，也可用于翻修手术

1–

钴铬钼合金制造，左右各5sizes2–

加深的滑车切迹可以改良髌股轨迹：减少接触应力，降低髌骨脱位风险3–

既可适应聚乙烯髌骨假体，也可适应病人自身的髌骨NexGen

LegacyCCK

股骨假体设计特点NexGen

LegacyCCK

股骨假体设计特点4–

不同曲率半径的股骨髁保持最大接触面积,减小对聚乙烯的压力5-

5种不同尺寸提供最佳的股骨覆盖,并提供更多的屈伸平衡的选择6–只用骨水泥固定1–

钛6铝4钒合金(ZimmerTivanium®)2–Doubledovetaillockingmechanism:safelockbetweenpolyandtibialcomponent->minimizedbacksidewear.3–Stabilizingfinshavebeendesignedinordertoincreaseboththemechanicalstrengthandtherotationalstabilityofthetibialcomponent.NexGen

LegacyCCK

胫骨假体1–7ºposteriorslopeinordertoeasefemoral’sposteriorroolback.2–DesignbasedonANADATdatabase.3–Upto10tibialsizes(1to10)NexGen

LegacyCCK

TibialComponentNexGen

LegacyCCK

Straight

StemNexGen

LegacyCCK

Offset

Stem

Stem

Extensions

Same

stems

for

bothFemoralandTibialcomponents

Titanium-Vanadium-Aluminium

Alloy(ZimmerTivanium®)

Sharp

edges

provideabetter

fixation

oncorticalbone

Straight

or4,5mm

Offset

Three

lenghts

andupto11diameters(10to24mm)NexGen

LegacyCCK

ModularityNexGen

LegacyCCK

Modularity

Stem

ExtensionsFixation

providedbyaMorseCone+2femoralscrewsFixation

providedbyaMorseCone+1tibialscrewNexGen

LegacyCCK

ModularityFemoralAugmentsAnteriorAugments–Cementedusedonly

PosteriorandDistalAugments5,10,15y20mm

Thickness

For

cemented

or

screw

fixationTMaugments!TibialAugments

FullWegde7º

Half

Wedges16y26º

Half

Blocks5,10,15y20mm

FullBlocks10mm

For

cemented

or

screw

fixationNexGen

LegacyCCK

Modularity

Third

Wedges

TMaugments

andcones!1-UltraHighMolecularWeight

Polyethylene(UHMWPE)forarticularsurfaces&patellas2-

Certified

Compression

Molding

Production

Process–PurityandQualityCertified.3-

Up

to6different

poly

thicknessesinorder

to

optimize

kinematics

of

the

knee.4-Five

different

Patella

SizesNexGen

LegacyCCK

ArticularSurface&PatellaTMAugmentation

Patella!NetShapeBarStockCompressionMoldingExtrusionConsolidationTechnologiesNexGen

LegacyCCK

ArticularSurface&PatellaNetShapeBarStockNexGen

LegacyCCK

ArticularSurface&PatellaHigher

ConstraintWHEN?(Collateral

instability)Lower

ConstraintWHEN?(Collateral

stability)NexGen

LegacyCCK

LPSvs.LCCKArticularSurfaceNexGen

Revision

Higher

Constraint

(LCCKPoly)

CDEFGH1-2Str-PStr-P

3-4YYStr-Y-efStr-Y-ef

5-6GRGRGG

7-10

Str-BStr-BBBFemoralSizeTibialSizeNexGen

Revision

Lower

Constraint

(LPSPoly)

CDEFGH1-2Str-PStr-P

3-4YYStr-Y-efStr-Y-ef

5-6GRGRGG

7-10

Str-BStr-BBBFemoralSizeTibialSizeNexGen

LegacyCCK

Unique

Selling

PropositionsMaximum

patient

specificity

through

broad

size

ranges

and

ample

choice

offemoralandtibialaugments

and

stems.Simpleandreproduciblesurgical

technique

that,along

with

the

unique

design

features,provides

excellent

alignment

and

balancing.Femoraldesign

based

on

primary

NexGenLPS,whichderivesfrom

the

clinically

succesfullI/B(Insall-Burstein)seriesdesign.Offsetfemoralandtibialstems

allowing

forafinepositioning

of

bothfemoralandtibialcomponents;perfect

fitinthe

medullarycanal.LCCKSurgicalTechniqueObjectivesinRevision

Knee

ArthroplastyTKRFixationKinematicsStabilityAlignmentRevisionAlgorithm3.-Stabilizekneeinextension1.-Re-buildsolidtibial

plataform

2.-Stabilizekneeinflexion

STEP1:

Re-buildsolidtibialplatformSTEP2:

StabilizekneeinFlexion

(Setfemoralrotation)STEP3:

StabilizekneeinExtension

(Set

patella

height)ProblemSolutionStability-GapsChange

on

DistalFemur

AffectsONLYExtensionNOTFlexionStability-GapsNOTExtensionChange

onPosteriorFemur

AffectsONLYFlexionStability-GapsChange

onTibiaAffects

BothSolve

the

problem…..FlexionExtensionFinalTrialReductionFinalImplantation:Attachstem,impactonceInsertshortscrewintostemandtightenImpacttib