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FemoralNeckFractures
---achangingparadigmDepartmentofOrthopaedics---MangmangChen
Definition1oneofthemostcommonlytreatedorthopaedicinjuries,3.58%2increasingnumberoffemoralneckfractures.LongerlifespanofpatientsIncreasedactivityofpatientsOsteoporosis3(这里可以放一些图片)
Demographics:Most75yOver1millionfemoralneckfracturesweretreatedinthe65yearoldpopulationintheUSBetween1991-2008.(有一张图片最好,地图分布图)
HipFractures:DemographicsVeryheterogeneouspatientpopulationCanrangerfromindependentmobile,healthyelderlypatientsVarydegressofdementia(1分38的时候看不懂)
110°~140°,average127°。140°coxavalgus110°coxavaraAnatomyCollodiaphysialangleAxis…
AnatomyCollodiaphysialangleAxis…Elderlypeople:indirectviolence——lowenergydamageYoungadults:indirectviolence——highenergydamagenonunion10%-20%(shearforcegreater),AVN20%-40%(Bloodsupply)
femoralneck?anteversionTheaxisofthefemoralneckandfemoralcoronaryformingAngle,12°~15°Anatomy
①Smallartery:Femoralheadroundligament,1/20②shaftofthefemur;nutrientartery③the?artery?ring?onthe?fundus?of?neck?of?femur:medialfemoralcircumflexartery;lateralfemoralcircumflexartery;Themainsource,2/3-4/5AnatomyBloodsupply
BloodsupplyAnatomymedialfemoralcircumflexartery---AVNthemainfactorthe?artery?ring?onthe?fundus?of?neck?of?femur
Accordingtothelocationclassificationfracturelines?closertothefemoralheadRichbloodsupplyPoorbloodsupply---rateofthenecrosisFractureend;Contactarea
AccordingtoX-rayFormedbyfracturelineandhorizontalline(IliacCreast)thegreatertheangle;compressivestress;fractureend;contactarea;unstableclassification
Pauwelsangleabductiontype:Pauwelsangle30°stableintermediatetype:30°Pauwelsangle50°adductiontype:Pauwelsangle50°unstableclassification
the?degree?of?displacement?of?fractureTypeⅠ:incompletefracture5TypeII:completefracture,Notdisplaced18TypeIII:completefracture,partiallydisplaced2
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