肩关节解剖.ppt

ShoulderAnatomy ShoulderAnatomy IntroductionGreatestRangeofMotioninthebody Ball SocketJoint Layers BonesLigaments jointcapsule MusclesandTendonsoftheRotatorCuffAnotherlayerofmuscle Deltoid Skin ShoulderAnatomy Anatomy PhysiologyTheanatomyoftheshoulderBones Humerus Scapula ClavicleLigaments Glenohumeralligaments CoracoacromialCoracoclavicular andAcromioclavicularTendons Muscles RotatorCuffandDeltoidBursaSynergisticMovementsAbduction AdductionFlexion ExtensionMedial LateralRotation ShoulderBoneAnatomy Bones2MainArticulationsGlenohumeral Humerus GlenoidAcromioclavicular Acromion ClavicleHumeralHead articulateswiththeGlenoidLesserandGreaterTuberosity RotatorCuffattachmentBicipitalGroove BicepsTendon ArticularCartilage HyalineCartilage resilient compressibleandavascular absorbsenergy withstandscompressiveandshearforces distributesload Allowssmoothglidingmotion BonesCont Scapula attachmentsforshouldermuscles SpinousProcess SpineoftheScapulaAcromion Lateral superiorpartofthescapulaCoracoidProcess ForwardprojectionoftheScapularNeckGlenoidFossa GlenoidCavity SurroundedbyGlenoidLabrum ShoulderBoneAnatomy TwoShoulderJointsGlenohumeralJoint GlenoidFossaandHumerus AcromioclavicularJoint AcromionandClavicle ShoulderBoneAnatomy AcromioclavicularJoint GlenohumeralJoint Clavicle Humerus Acromion GlenoidFossa Scapula LateralBoneView Anterior Posterior PosteriorBoneView ShoulderLigamentAnatomy LigamentsLigaments softtissue connectbonetobone 3ligamentsinJointcapsuleSuperiorGL MiddleGL InferiorGlenohumeralComplex3ligamentssupporttheAcromioclavicularJoint Coracoacromial Coracoclavicular Acromioclavicular ShoulderLigamentAnatomy LigamentsCont TheJointCapsule providesstability TheGHLsareincorporatedintoit Slack loosetoallowunrestrictedrangeofmotionTightentopreventsubluxationordislocation AnteriorLigamentsView ViewwithCapsularTissue AnteriorLigamentsView ViewwithCapsularTissue LateralLigamentView Anterior Posterior LateralLigamentView Anterior Posterior ViewwithoutCapsularTissue PosteriorLigamentsView PosteriorLigamentsView ViewwithoutCapsularTissue ShoulderJointLigamentsView Anterior Posterior TheBumper Slightlyconcave Concavityintheglenoid TheintactLabrumincreasestheconcavityoftheGlenoid50 50 Concavityintheglenoid Glenoidrimhelpsrestoreglenoiddepthandstability SuctionCup ShoulderJointStability AnteriorRotatorCuffView LateralRotatorCuffView Supraspinatus Infraspinatus TeresMinor Subscapularis Anterior Posterior PosteriorRotatorCuffView Supraspinatus Infraspinatus TeresMinor RotatorCuffAnatomy RotatorCuffTendons MusclesTendons muscletoboneTheRotatorCuff deepestlayeroftendonsandmusclesintheshoulderSubscapularis attachesattheLesserTuberositySupraspinatus Infraspinatus TeresMinor attachattheGreaterTuberosityTheouterlayerofmusclesisDeltoid ShoulderJointRotatorCuffView Anterior Posterior Lateral ShoulderAnatomy FunctionsoftheRotatorCuff Providesstability HoldsHumeralheadinthesocketformedbytheGlenoid Compressionfromthesubscapularisandinfraspinatuscanholdthehumeralheadcenteredontheglenoid RotatorCuffFunction BursaShoulderAnatomy BursaBetweenRotatorCuffandAcromion Everywhereinthebody twomovingsurfaces butnotajoint Bursaisaclosedsackthathasasmallamountoflubricatingfluidinside HowBursaworks Rubbingyourhandstogetherproducesfriction Ifyouplaceaplasticbagcontainingafewdropsofoliveoilbetweenyourhandsyou llfindthatyourhandsmovefreelyagainstoneanother eliminatingfriction BursaPosteriorAnatomy ShoulderAnatomySummary TheShoulderisacomplexarrayof Bones Clavicle Scapula HumerusTendons Muscles Subscapularis Supraspinatus Infraspinatus andtheTeresMinorLigaments Superior Middle Lower PosteriorGlenohumeralLigaments aswellastheGlenoidLabrum Whichprovidesupportandstabilizationfortheshoulderjoint ShoulderMovements TheRotatorCuffhelpstorotatetheshoulderinthemanydirectionsthatwerequiretofunctionindaytodayactivities whilecontrollingabduction ShoulderMovements TheRotatorCuffSupraspinatus abduction extern