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1、FemoralNeckFractures ---achangingparadigmDepartmentofOrthopaedics---MangmangChenDefinition1oneofthemostcommonlytreatedorthopaedicinjuries,3.58%2increasingnumberoffemoralneckfractures.LongerlifespanofpatientsIncreasedactivityofpatientsOsteoporosis3(這里可以放一些圖片)Demographics:M
2、ost>75yOver1millionfemoralneckfracturesweretreatedinthe>65yearoldpopulationintheUSBetween1991-2008.(有一張圖片最好，地圖分布圖)HipFractures:DemographicsVeryheterogeneouspatientpopulationCanrangerfromindependentmobile,healthyelderlypatientsVarydegressofdementia(1分38的時候看不懂)110°~140°，ave
3、rage127°。>140°coxavalgus<110°coxavaraAnatomyCollodiaphysialangleAxis…AnatomyCollodiaphysialangleAxis…Elderlypeople：indirectviolence——lowenergydamageYoungadults：indirectviolence——highenergydamagenonunion10％－20％（shearforcegreater），AVN20％－40％（Bloodsupply）femoralneck?antevers
4、ionTheaxisofthefemoralneckandfemoralcoronaryformingAngle,12°~15°Anatomy①Smallartery：Femoralheadroundligament，1/20②shaftofthefemur;nutrientartery③the?artery?ring?onthe?fundus?of?neck?of?femur：medialfemoralcircumflexartery;lateralfemoralcircumflexartery;Themainsource，2/3－4/
5、5AnatomyBloodsupplyBloodsupplyAnatomymedialfemoralcircumflexartery---AVNthemainfactorthe?artery?ring?onthe?fundus?of?neck?of?femurAccordingtothelocationclassificationfracturelines?closertothefemoralheadRichbloodsupplyPoorbloodsupply---rateofthenecrosisFractureend;Contacta
6、reaAccordingtoX-rayFormedbyfracturelineandhorizontalline(IliacCreast)thegreatertheangle;compressivestress;fractureend;contactarea;unstableclassificationPauwelsangleabductiontype：Pauwelsangle<30°stableintermediatetype：30°50°unsta
7、bleclassificationthe?degree?of?displacement?of?fractureTypeⅠ:incompletefracture5TypeII：completefracture,Notdisplaced18TypeIII：completefracture，partiallydisplaced28TypeIV：completefracture,completelydisplaced38---1994Generally,thegreaterthedisplacement,thegreaterriskof…Gard
8、enclassificationClinicalmanifestationanddiagnoseMedicalhistory：historyoftraumaPhysicalsign：1.mal
