踝关节生物力学

关于踝关节生物力学AnkleAnatomicalStructuresTibiaFibularTalus第2页,共55页，星期六，2024年，5月Tibia胫骨Thisisthestrongestlargestboneofthelowerleg.Itbearsweightandthebonecreatesthemedialmalleoli(thebumpontheinsideofyourankle)whichisthemedialaspectofthemortiseorthe(hole)thatthetaluslieswithin.这是最强壮的小腿骨。它具有承重和形成了内侧支撑面(组成脚踝的凹面)，能与距骨相契合第3页,共55页，星期六，2024年，5月TheTibiaisthemedialboneandlargestboneofthelowerleg.Tibia胫骨是小腿的最大和支撑骨的骨头。第4页,共55页，星期六，2024年，5月Fibula腓骨Thisisasmallerlateralboneofthelowerleg.Itisnotvitalforweightbearingyetitcomprisesthelateral(outside)aspectofthemalleoliandmakesupthelateralaspectofthemortise.这是小腿的一根更小的外侧骨头。它不承重，它是踝关节的外侧支撑面。第5页,共55页，星期六，2024年，5月Fibula--->Thefibulaislongerandnonweightbearing.Itmakesupthelateralaspectofthemortise.Thelateralmalleoliliesinferior(below)themedialmalleoli它比较长和不承重。并组成踝关节外侧面。并低于内侧面_______________________第6页,共55页，星期六，2024年，5月TalusThisbonetransmitstheforcesfromthecalcaneusupintothetibiaandalsoallowsthearticulationsofPlantarFlexion(pointingthefootdownward)DorsiflexionorpullingthefootupwardandInversion(rollingthefootinward)andEversion(rollingthefootoutward)第7页,共55页，星期六，2024年，5月------Talus第8页,共55页，星期六，2024年，5月TalocruralJointTheformationofthemortise(ahole)bythemedialmalleoli(Tibia)andlateralmalleoli(fibula)withthetaluslyinginbetweenthemmakesupthetalocruraljoint.Thisisahingejointandallowsmostofthemotionwithplantarflexionanddorsiflexion.第9页,共55页，星期六，2024年，5月________________________________TalocruralJt.第10页,共55页，星期六，2024年，5月SubtalarJointThearticulationbetweenthetalusandthecalcaneusisreferredtoasthesubtalarjoint.Motionallowedbythisjointisinversion(rollinward)/eversion(rolloutward)aswellasrearfootpronation(inwardtiltofthecalcaneus)andsupination(outwardtiltofthecalcaneus).第11页,共55页，星期六，2024年，5月calcaneusTalus---SubtalarJointMedialaspectoffoot第12页,共55页，星期六，2024年，5月AnkleLigamentsTherearethreelateralligamentspredominantlyresponsibleforthesupportandmaintenanceofboneapposition(bestpossiblefit).Theseligamentspreventinversionofthefoot.Theseligamentsare:AnteriortalofibularligamentCalcaneofibularligamentPosteriortalofibularligament第13页,共55页，星期六，2024年，5月TalusFibulaTibiaAnt.TalofibularLigamentAnt.TibiofibularLig.第14页,共55页，星期六，2024年，5月Post.TibiofibularLig.<-Fibula<-Ant.TalofibularLig<-TalusPeronealTendonsCalcaneofibularLigamentCalcaneus

SubtalarJoint SpaceCuboid第15页,共55页，星期六，2024年，5月calcaneus<-FibularheadPosteriortibiofibularLigamentAchillesTendonTalusPosteriortalofibularlig.Peronealtendons第16页,共55页，星期六，2024年，5月ThedeltoidligamentThisislocatedonthemedialaspectofthefoot.Itisthelargestligamentbutisactuallycomprisedofseveralsectionsallfusedtogether.Thisligamentprevents(eversion)oftheankle.Thedeltoidligamentistriangularinshapeandhassuperficialanddeeplayers.Itisthemostdifficultligamentinthefoottosprain.第17页,共55页，星期六，2024年，5月TibiaXXXNavicular---

--TalusTibialisPosteriorTendonTibialisAnt.TendonDeltoidLigamentX第18页,共55页，星期六，2024年，5月Musclesofthelowerleg/ankleThereare4compartmentsthatmakeupthelowerlegthatoperatethemotionsoftheankle.Injurycancauseswellinginsidethesecompartmentsthatcanleadtotissuedeathornervedamage.第19页,共55页，星期六，2024年，5月第20页,共55页，星期六，2024年，5月AnteriorCompartmentAnt.TibialisExt.HallicusLongusExtensorDigitorumLongusContainsAnt.TibialNerveContainsAnteriorTibialArteryDorsiflexorsofthefoot(liftsfootup)<-Ant.Comp第21页,共55页，星期六，2024年，5月LateralCompartmentEvertersofthefoot(turnsfootoutward)PeroneusLongusPeroneusBrevisPeroneusTertiusContainsthesuperficialperonealnerve<-Lat.Comp.第22页,共55页，星期六，2024年，5月PosteriorSuperficialGroupPlantarflexors(pushesfootdownwards)GastrocnemiusSoleusSuperficialPosterior

第23页,共55页，星期六，2024年，5月PosteriorDeepAssistswithPlantarflexionTibialisPosteriorFlexorHallicusLongusFlexorDigitorumLongusPosteriortibialarteryPost.Deep---

第24页,共55页，星期六，2024年，5月AssessingtheLowerLegandAnkleHistoryPasthistoryMechanismofinjuryWhendoesithurt?Typeof,qualityof,durationofpain?Soundsorfeelings?Howlongwereyoudisabled?Swelling?Previoustreatments?第25页,共55页，星期六，2024年，5月ObservationsPosturaldeviations?Istheredifficultywithwalking?Deformities,asymmetriesorswelling?Colorandtextureofskin,heat,redness?Patientinobviouspain?Israngeofmotionnormal?第26页,共55页，星期六，2024年，5月PercussionandcompressiontestsUsedwhenfractureissuspectedPercussiontestisablowtothetibia,fibulaorheeltocreatevibratoryforcethatresonatesw/infracturecausingpainCompressiontestinvolvescompressionoftibiaandfibulaeitheraboveorbelowsiteofconcernThompsontestSqueezecalfmuscle,whilefootisextendedofftabletotesttheintegrityoftheAchillestendonPositivetestsresultsinnomovementinthefootHoman’stestTestfordeepveinthrombophlebitisWithkneeextendedandfootofftable,ankleismovedintodorsiflexionPainincalfisapositivesignandshouldbereferred第27页,共55页，星期六，2024年，5月CompressionTestPercussionTestHoman’sTestThompsonTest第28页,共55页，星期六，2024年，5月AnkleStabilityTestsAnteriordrawertestUsedtodeterminedamagetoanteriortalofibularligamentprimarilyandotherlateralligamentsecondarilyApositivetestoccurswhenfootslidesforwardand/ormakesaclunkingsoundasitreachestheendpointTalartilttestPerformedtodetermineextentofinversionoreversioninjuriesWithfootat90degreescalcaneusisinvertedandexcessivemotionindicatesinjurytocalcaneofibularligamentandpossiblytheanteriorandposteriortalofibularligamentsIfthecalcaneusiseverted,thedeltoidligamentistested第29页,共55页，星期六，2024年，5月AnteriorDrawerTestTalarTiltTest第30页,共55页，星期六，2024年，5月Kleiger’stestUsedprimarilytodetermineextentofdamagetothedeltoidligamentandmaybeusedtoevaluatedistalanklesyndesmosis,anterior/posteriortibiofibularligamentsandtheinterosseusmembraneWithlowerlegstabilized,footisrotatedlaterallytostressthedeltoidMedialSubtalarGlideTestPerformedtodeterminepresenceofexcessivemedialtranslationofthecalcaneusonthetalusTalusisstabilizedinsubtalarneutral,whileotherhandglidesthecalcaneus,mediallyApositivetestpresentswithexcessivemovement,indicatinginjurytothelateralligaments第31页,共55页，星期六，2024年，5月Kleiger’sTestMedialSubtalarGlideTest第32页,共55页，星期六，2024年，5月

FunctionalTestsWhileweightbearingthefollowingshouldbeperformedWalkontoes(plantarflexion)Walkonheels(dorsiflexion)Walkonlateralbordersoffeet(inversion)Walkonmedialbordersoffeet(eversion)HopsoninjuredanklePassive,activeandresistivemovementsshouldbemanuallyappliedtodeterminejointintegrityandmusclefunctionIfanyofthesearepainfultheyshouldbeavoided第33页,共55页，星期六，2024年，5月PreventionofInjurytotheAnkleStretchingoftheAchillestendonStrengtheningofthesurroundingmusclesProprioceptivetraining:balanceexercisesandagilityWearingproperfootwearandortapewhenappropriate第34页,共55页，星期六，2024年，5月SpecificInjuriesAnkleInjuries:SprainsSinglemostcommoninjuryinathleticscausedbysuddeninversionoreversionmomentsInversionSprainsMostcommonandresultininjurytothelateralligamentsAnteriortalofibularligamentisinjuredwithinversion,plantarflexionandinternalrotationOccasionallytheforceisgreatenoughforanavulsionfracturetooccurw/thelateralmalleolus第35页,共55页，星期六，2024年，5月Severityofsprainsisgraded(1-3)Withinversionsprainsthefootisforcefullyinvertedoroccurswhenthefootcomesintocontactw/unevensurfaces第36页,共55页，星期六，2024年，5月第37页,共55页，星期六，2024年，5月Grade1InversionAnkleSprainEtiologyOccurswithinversionplantarflexionandadductionCausesstretchingoftheanteriortalofibularligamentSignsandSymptomsMildpainanddisability;weightbearingisminimallyimpaired;pointtendernessoverligamentsandnolaxityManagementRICEfor1-2days;limitedweightbearinginitiallyandthenaggressiverehabTapemayprovidesomeadditionalsupportReturntoactivityin7-10days第38页,共55页，星期六，2024年，5月Grade2InversionAnkleSprainEtiologyModerateinversionforcecausinggreatdealofdisabilitywithmanydaysoflosttimeSignsandSymptomsFeelorhearpoporsnap;moderatepainw/difficultybearingweight;tendernessandedemaPositivetalartiltandanteriordrawertestsPossibletearingoftheanteriortalofibularandcalcaneofibularligamentsManagementRICEforatleastfirst72hours;X-rayexamtoruleoutfx;crutches5-10days,progressingtoweightbearing第39页,共55页，星期六，2024年，5月Management(continued)WillrequireprotectiveimmobilizationbutbeginROMexercisesearlytoaidinmaintenanceofmotionandproprioceptionTapingwillprovidesupportduringearlystagesofwalkingandrunningLongtermdisabilitywillincludechronicinstabilitywithinjuryrecurrencepotentiallyleadingtojointdegenerationMustcontinuetoengageinrehabtopreventagainstre-injury第40页,共55页，星期六，2024年，5月Grade3InversionAnkleSprainEtiologyRelativelyuncommonbutisextremelydisablingCausedbysignificantforce(inversion)resultinginspontaneoussubluxationandreductionCausesdamagetotheanterior/posteriortalofibularandcalcaneofibularligamentsaswellasthecapsuleSignsandSymptomsSeverepain,swelling,hemarthrosis,discolorationUnabletobearweightPositivetalartiltandanteriordrawer第41页,共55页，星期六，2024年，5月ManagementRICE,X-ray(physicianmayapplydorsiflexionsplintfor3-6weeks)CrutchesareprovidedaftercastremovalIsometricsincast;ROM,PREandbalanceexerciseonceoutSurgerymaybewarrantedtostabilizeankleduetoincreasedlaxityandinstability第42页,共55页，星期六，2024年，5月EversionAnkleSprains

-(Represent5-10%ofallanklesprains)EtiologyBonyprotectionandligamentstrengthdecreaseslikelihoodofinjuryEversionforceresultsindamagetodeltoidligamentandpossiblyfxofthefibulaDeltoidcanalsobeimpingedandcontusedwithinversionsprains第43页,共55页，星期六，2024年，5月第44页,共55页，星期六，2024年，5月第45页,共55页，星期六，2024年，5月第46页,共55页，星期六，2024年，5月InjuryPreventionStrengthtrainingallowsthesupportingmusculaturetostabilizewhereligamentsmaynolongerbecapableofholdingtheoriginaltensionbetweenbonesofthejoint.Thiswillalsohelppreventreinjury.第47页,共55页，星期六，2024年，5月ChronicAnkleInjury“theviciouscycle”Whyaresomepeoplepronetoanklere-injuryoverandover?Mostcommonlyduetolackofrehabilitation,butmoreimportantlylackofneuromusculartraining.Thismeansthepersonhasnotretrainedthebodytorecognizewheretheankleandfootareduringmotion.Thissetsupthebodyparttobere-injuredduetoimproperfeedbacktothebrainaboutbodyposition.第48页,共55页，星期六，2024年，5月InjuryPreventionNeuromuscularControlistheabilitytocompensateforunevensurfacesorsuddenchangeinsurfaces.ItisretrainedbyusingbalanceandagilityexercisessuchasaBAPSboardorstandingononelegwitheyesclosedaswellasusingasinglelegonaminitrampoline.第49页,共55页，星期六，2024年，5月NeuromuscularControlTrainingCanbeenhancedbytrainingincontrolledactivitiesUnevensurfaces,BAPSboards,rockerboards,orDynadiscscanal