2018分型概述及踝关节分型.ppt

2018OTA/AO(orAO/OTA)FractureandDislocationClassificationCompendium,AO分型历史,1996年，第一版AO分型在AOFoundationandtheOrthopaedicTraumaAssociation(OTA)合作下出版。分型目的：astandardizedandrationalmethodologyofdescribingfracturesanddislocationaswellasamechanismtocodedataforfuturerecall,1、2、3定位,thecenteroffracture,Thelocationofthefractureisdeterminedbyfindingitscenter.Thisisdefinedasfollows:Inasimplefracture,thecenterofthefractureisobvious(Fig3).Inawedgefracture,thecenterisatthelevelofthebroadestpartofthewedge(Fig4).Inafragmentarywedgeandamultifragmentaryfracture,thecentercanbedeterminedonlyafterreduction(Fig4).Anydiaphysealfractureassociatedwithadisplacedarticularcomponentisconsideredanarticularfracture.Ifafractureisassociatedwithanundisplacedfissurethatreachesthejoint,itisclassifiedasametaphysealordiaphysealfracturedependingonitscenter.Ifonebonehastwocompletelyseparatefractures,oneinthediaphysisandoneintheproximalordistalendsegments(eg,afemoraldiaphysisandafemoralneckfracture),eachfracturemustbeclassifiedseparately.,AO编码原则,Universalmodifiers（通用修饰语）,1Nondisplaced2Displaced3Impaction压缩（软骨、干骺端）4Noimpaction5Dislocation（a前、b后、c中心、d下、e外、f多方向）6Subluxation/ligamentousinstability（a前、b后、c中心、d下、e外、f多方向）7Diaphysealextension骨干延长？8Articularcartilageinjury软骨损伤9Poorbonequality10Replantation再植11Amputationassociatedwithafracture骨折所致截肢12Associatedwithanonarthroplastyimplant合并非关节成型植入物13Spiraltypefracture螺旋型骨折14Bendingtypefracture屈曲型骨折,Qualifications资格条件？,Thefracturequalificationsaredescriptivetermsoffracturemorphologyorlocationthatarespecifictoeachfracture.2U1B1(d)2U1B1(e),2018完整AO编码骨折,Example:Humerus,proximalendsegment,articularor4-partfracture,withmultifragmentarymetaphysealfractureandsimplearticularfracturewithananteriordislocation11C3.2(x)5a,Theprocessofclassificationandcodingadiaphysealfracture,Theprocess