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Avulsion
Fracture
ofAnteriorCruciateLigament1History1875——Poncet1970——AvulsionfractureoftheACLwasclassifiedby
MeyersMH1996——VeselkoMperformed
arthroscopicplacementandremovalofcannulatedscrewforfixation2008——JinzhongZhaoreported
arthroscopicFigure-of-8suturefixationtechnique2Morbidity——3/10000014%of
ACL
injuryDistribution
of
age
children——8~14
years
old
old
women——over
40
years
oldAccidE-mergNurs,2004,12(3):173-175.InternationalJournalofPediatrics,2012,ArticleID932702,6pages
epidemiology3Fallinjuryandtrafficaccident——51%Sportsinjuries——Skiingandfootball--14%TheKnee,2008,15(3):164-167.4Associatedwithcapsuletear
of
meniscus
or
articularcapsule,sometimes
including
medialandlateralcollateralligamentinjuryorinjuryofarticularcartilageArthroscopy:TheJournalofArthroscopicandRelatedSurgery,2005,21(1):86-92.5Relevant
anatomicalstructure6Residentridge7Residentridge8Branchingridge9Footprints10Footprints1112Theanteriormedialbundleistightinflexion
theposteriorlateralbundleistightinthestraightposition1312损伤机制Youngpeople-kneeflexion,tibialinternalrotationAdults-hyperextensionofthekneeACLlimitsanteriordisplacement,hyperextension,andinternalrotation14DiagnosisInjury
history
of
hyperextensionofkneeBruise
and
hyphemaTheextensionwaslimitedAnterior
drawertestandLachmansignare
positiveX-ray
and
CT
are
conducivetounderstandingoffractureMRIishelpfultounderstandinjury
of
ACL,andothers
combinedinjury.15Anterior
drawertestandLachmansign16X-ray17CT18MRI19Meyers-McKeeverclassificationArthroscopy2005;21[1]:86-9220Howtoidentifyfreshoroldfracturesinimaging21TreatmentItypeConservativetreatment
to
keep
the
knee
in
a
functionalposition
for
6weeksⅡ
and
Ⅲ
types
Manipulation,iffail,selectedsurgeryⅣ
type
Surgery22Reduction
Thedrawertestafterextension23P-R-I-C–E
programProtectionRestIceCompressionElevate
24It
usedtobethemostcommonlytreatmentprogramtoopenreductionandfixedwithwire25AfailedcaseCase126Singletunnelfixationwithsteelwireandextrusionscrew27Noextrusionnailwasfoundbeforeoperationimpinge28Ifthefracturemassissmall,usingEthibondsuture29OldfractureofavulsionfractureofACLCase230Woundfreshness31Tocleanandremovealldead,damagedtissuearoundofthefracturemass32Tointroducethewirebyalumbarpunctureneedle33TothreadthroughNo.5Ethibond,andfixfracturewith"8"tensionband34Toinspectcarefully35Thepatientswerefollowedupfor1monthaftersurgery36Case3TousePDSiiasthethread37TousePDSiiasthethread38TousePDSiiasthethread39Case4OldavulsionfractureofACL40Withbonesclerosis,andACLstretchandtear41Theboneblockcannotberemovedwiththenucleuspulposusclampmicro-grindingdrilltodrill42ToremovebonemasswithnucleuspulposusforcepsEnlargementofthecondylarfossa43Thepicturewastakenafterreconstructionofanteriorcruciateligament44PostoperativeX-ray45followedupfor1monthaftersurgery46Forabiggerfractureblock,hollowscrewisagoodchoice47Lateralmeniscus(LM)isbeingpulledanddisplaced48Ifthefractureofthetibialplateauiscombined,firstofall,thefractureshouldbefixed49X-rayshowedACLavulsionfracturecombinedwithtibialplateaufractureCase450MRI51Tocheckthestabilityofkneejointbeforeoperation52TocarefullyexaminethecollapseofthelateraltibialplateauToreduceandfixtibialplateaufractures53ToremovethesynovialtissueofthefemoralcondyleArthroscopicimageofthereducefracture54TocutthetransverseligamentofmeniscusThereductionofthefracturemassisblockedbythetransverseligamentofthemeniscus55ToreducefractureTofixedfracturewithk-wiretemporarily56To
drill
intosecondK-wireAguidepinisinserted57To
screwintothehollowscrewTo
inspect
after
fixation58PostoperativeX-ray59
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