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Explant®
Acetabular Cup Removal System
Surgical Technique
1Explant® Acetabular Cup Removal System Surgical Techninque
• Controlledbonedissectionatthebone-cupinterface
helpsminimizebonelossduringrevisionsurgery.
• Twobladestylesforeachcupsizefacilitateprogres-
siveremovalofthecup.
• BladescloselymatchacetabularcupODtopreserve
bonestock.
• Centeringheads,whichmatchacetabularcupID,
helpstabilizeandguidethebladesduringcutting.
Simple Procedure
Anchoredbyacenteringheadattachedtothehandle,a
stiffTruncatedBladepenetratesdenseperipheralbone
andcreatesachannel.
Afullradius,thinFullBladethenfreesthedomeofthe
cupfromboneattachment.
Minimizes Acetabular Bone Loss
2 Explant® Acetabular Cup Removal System Surgical Techninque
Determinethesizeofacetabularcuptoberemovedby
determiningitsoutsideandinsidediameters.Selectthe
bladebasedontheoutsidediameter(OD)ofthecupand
thePivotHead(22mm-36mm)basedontheinside
diameter(ID).
Note:IftheODisinbetweentheavailablebladesizes,
selectthenextlargestsize.Alternatively,iftheIDisin
betweentheavailablePivotHeadsizes,selectthenext
smallestsize.
IftheshelltobeexplantedisaLargeDiameterHeadshell
andtheinsidediameter(ID)is38mmorgreater,youmust
choosetheappropriatesizeMetasul® LDH®femoralhead
trialthatmostcloselymatchestheIDoftheshell.Place
theadapterontheExplanthandlebyscrewingitdownin
thesamemannerthatyouwouldattachthestandardpivot
heads,makingsurethatitistightenedcompletelyand
securely.Then,placetheappropriatesizedMetasul LDH
femoralheadtrialsecurelyontheadapterbypushingdown
onthetrialheadsothatthetaperontheadaptercapturesit
securely.Alightimpactionwiththepalmofthehandwillbe
enough.
Note: This should be done BEFORE attaching the osteotome
blade. Attachtheappropriatesizedosteotomebladeonthe
handleandsecurewithhexdriver.
Note:IftheODisinbetweentheavailablebladesizes,select
thenextlargestsize.Alternatively,iftheIDisinbetweenthe
availablePivotHeadorLarge Diameter HeadTrialHeadsizes,
selectthenextsmallestsize.
1Select Instrument Size
3Explant® Acetabular Cup Removal System Surgical Techninque
2Assemble BladesThreadtheselectedPivotHeadsortheExplantAdapterwith
Large Diameter HeadTrialHeadsontoeachofthetwohandles.
EnsurethePivotHeadorAdapterwithLarge Diameter Head
TrialHeadisthreadeddowntightlyonthehandletoprevent
looseningduringimpaction.SlidetheselectedTruncated
BladeandcorrespondingFullBladeovertheboltoneach
handle.UsetheTorqueWrenchwiththehexadaptertosecure
thebladetothehandle.TightenuntiltheTorqueWrench
releases.Thiswillensurethatthebladeisfullylockedin
place.
Note:Thehandleboltiscaptured.Onlyloosentheboltwith
thetorquewrenchandhexadaptor.Theboltonlyneedstobe
looseneduntilthebladeisfree.Donotcontinuetounscrew
theboltasitmaybecomeseparatedfromhandle.
Warning: Do not attempt to unscrew the Pivot Head or
Adapter with Large Diameter Head Trial Head from the handle
when the blade is still attached. The sides of the blade are
sharp and caution should be used. Instead, remove the
blades prior to the Pivot Head or Adapter with Large Diameter
Head Trial Head removal.
4 Explant® Acetabular Cup Removal System Surgical Techninque
UsetheBallImpactor, ifrequired,tosecurethe handlewithinthecup.
Assesslocationofscrewsinanyacetabularcupand
removethemtoensurenointerferencewiththeExplant
blades.Also,ensuresofttissueisclearedfromthefaceof
thecup.
UsetheTruncatedBladetoinitiatecupremoval.This
shorter,stifferbladeisdesignedtopenetratethedenser
peripheralbonearoundthecup.PlacethePivotHeador
AdapterwithLarge Diameter HeadTrialHeadwithinthe
cupIDtoguidethebladearoundthecup.UsetheBall
Impactor,ifrequired,tosecurethehandlewithinthecup.
Usingatechniqueofimpactionandaxialrotation,initiate
achannelaroundthecupperiphery.Ifthebonenearthe
rimisscleroticandtheTruncatedBladeisnotadvancing,
theExplantinstrumentcanberemovedandpreparation
initiatedwithastraightosteotome.
Note:Ifthecuplinerisdamaged,orifthecuphasanoffset
linerpreventingpropercenteringoftheosteotome,remove
thelineranduseaprovisionalinsert.
3Initiate Cup Removal
5Explant® Acetabular Cup Removal System Surgical Techninque
UsetheFullBladetofinalizethecupremoval.Thislonger,
thinnerbladeisdesignedtoreachtowardthedomeof
thecup.RepeatthetechniquedescribedfortheTruncated
Blade.Avoidapplyingtoomuchforceusingthethinblade.
Warning: Should the blade bend and impinge upon the
cup itself, excess torque could lever the cup out of the
acetabulum along with attached bone.
4Finalize Cup Removal
Afterthecuphasbeenexplanted,itisrecommended
thattheshortandlongExplantbladesusedinsurgery
bediscarded.Wearand/orotherdamagethatmay
occurduringthecupremovalcancompromisethe
blades’cuttingability.
Warning: The Explant blades are extremely sharp.
Caution must be used in handling throughout the
surgical procedure and subsequent disposal of the
blades.
5Blade Disposal
6 Explant® Acetabular Cup Removal System Surgical Techninque
Order Information
Instrumentation*
00-7001-021-00—LargeSet
ProductNo. Description Qty.00-7000-021-00 Shell Removal Instrument Set - Large00-7050-098-00 LargeOsteotomeInstrumentCase 100-7053-001-00 TorqueWrench 100-7053-002-00 TorqueWrenchAdapter,Hex3.5mm 100-7053-003-02 CurvedOsteotome,LargeHandle 200-7053-062-10 TruncatedBlade,62mmHemisphere 100-7053-064-10 TruncatedBlade,64mmHemisphere 100-7053-066-10 TruncatedBlade,66mmHemisphere 100-7053-068-10 TruncatedBlade,68mmHemisphere 100-7053-070-10 TruncatedBlade,70mmHemisphere 100-7053-072-10 TruncatedBlade,72mmHemisphere 100-7053-062-20 FullBlade,62mmHemisphere 100-7053-064-20 FullBlade,64mmHemisphere 100-7053-066-20 FullBlade,66mmHemisphere 100-7053-068-20 FullBlade,68mmHemisphere 100-7053-070-20 FullBlade,70mmHemisphere 100-7053-072-20 FullBlade,72mmHemisphere 100-7053-022-00 OsteotomePivotHead,22mm 200-7053-026-00 OsteotomePivotHead,26mm 200-7053-028-00 OsteotomePivotHead,28mm 200-7053-032-00 OsteotomePivotHead,32mm 200-7053-036-00 OsteotomePivotHead,36mm 200-7053-003-03 Explant LargeDiameterHeadAdapter 2
00- 7053-004-00 Ball Impactor (Optional)
* Bladesizingreferstotheoutsidediameterofthecupbeingremoved. Forexample,useProd.Nos.00-7053-050-10(TruncatedBlade)and 00-7053-050-20(FullBlade)fora50mmcup.
ProductNo. Description Qty.Large Diameter Head Femoral Head Trials
01.00189.381 ≥38mm 101.00189.401 ≥40mm 101.00189.421 ≥42mm 101.00189.441 ≥44mm 101.00189.461 ≥46mm 101.00189.481 ≥48mm 101.00189.501 ≥50mm 101.00189.521 ≥52mm 101.00189.541 ≥54mm 101.00189.561 ≥56mm 101.00189.581 ≥58mm 101.00189.601 ≥60mm 1
ProductNo. Description Qty.00-7000-020-00 Shell Removal Instrument Set - Small00-7050-096-00 SmallOsteotomeInstrumentCase 100-7053-001-00 TorqueWrench 100-7053-002-00 TorqueWrenchAdapter,Hex3.5mm 100-7053-003-01 CurvedOsteotome,SmallHandle 200-7053-042-10 TruncatedBlade,42mmHemisphere 100-7053-044-10 TruncatedBlade,44mmHemisphere 100-7053-046-10 TruncatedBlade,46mmHemisphere 100-7053-048-10 TruncatedBlade,48mmHemisphere 100-7053-050-10 TruncatedBlade,50mmHemisphere 100-7053-042-20 FullBlade,42mmHemisphere 100-7053-044-20 FullBlade,44mmHemisphere 100-7053-046-20 FullBlade,46mmHemisphere 100-7053-048-20 FullBlade,48mmHemisphere 100-7053-050-20 FullBlade,50mmHemisphere 100-7053-022-00 OsteotomePivotHead,22mm 200-7053-026-00 OsteotomePivotHead,26mm 200-7053-028-00 OsteotomePivotHead,28mm 200-7053-032-00 OsteotomePivotHead,32mm 200-7053-036-00 OsteotomePivotHead,36mm 200-7053-003-03 Explant LargeDiameterHeadAdapter 2
00-7000-019-00 Shell Removal Instrument Set - Medium00-7050-097-00 MediumOsteotomeInstrumentCase 100-7053-001-00 TorqueWrench 100-7053-002-00 TorqueWrenchAdapter,Hex3.5mm 100-7053-003-00 CurvedOsteotome,MediumHandle 200-7053-052-10 TruncatedBlade,52mmHemisphere 100-7053-054-10 TruncatedBlade,54mmHemisphere 100-7053-056-10 TruncatedBlade,56mmHemisphere 100-7053-058-10 TruncatedBlade,58mmHemisphere 100-7053-060-10 TruncatedBlade,60mmHemisphere 100-7053-052-20 FullBlade,52mmHemisphere 100-7053-054-20 FullBlade,54mmHemisphere 100-7053-056-20 FullBlade,56mmHemisphere 100-7053-058-20 FullBlade,58mmHemisphere 100-7053-060-20 FullBlade,60mmHemisphere 100-7053-022-00 OsteotomePivotHead,22mm 200-7053-026-00 OsteotomePivotHead,26mm 200-7053-028-00 OsteotomePivotHead,28mm 200-7053-032-00 OsteotomePivotHead,32mm 200-7053-036-00 OsteotomePivotHead,36mm 200-7053-003-03 Explant LargeDiameterHeadAdapter 2
Itisrecommendedthatbothhandlesbeassembledwiththeosteotomebladespriortocupremovaltoreducesurgerytime.(SeeStep#2)
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97-7255-206-001108-H031MLPrintedinUSA©2011Zimmer,Inc.
Thisdocumentationisintendedexclusivelyforphysiciansandisnotintendedforlaypersons.Informationontheproductsandprocedurescontainedinthisdocumentisofageneralnatureanddoesnotrepresentanddoesnotconstitutemedicaladviceorrecommendations.Becausethisinformationdoesnotpurporttoconstituteanydiagnosticortherapeuticstatementwithregardtoanyindividualmedicalcase,eachpatientmustbeexaminedandadvisedindividually,andthisdocumentdoesnotreplacetheneedforsuchexaminationand/oradviceinwholeorinpart.Pleaserefertothepackageinsertsforimportantproductinformation,including,butnotlimitedto,contraindications,warnings,precautions,andadverseeffects.
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