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1、RADIUS/ULNABONE:RADIUS/ULNA(2)Location:Proximalsegment(21)Types:A.Extra-articular(21-A)B.ArticularfractureinvolvingarticularC.Articularfractureinvolvingartic-surfaceofonly1ofthe2bones(21-B)ularsurfaceof2bones(21-C)Groups:Radius/ulna,proximal,extra-articular(21-A)Radius/ulna,proximal,articularsurf
2、aceoneboneRadius/ulna,proximal,articularbothbones(21-C)(21-B)1.Ulnaonly2.Radiusonly3.Radiusand1.Ulnafractured,2.Radiusfrac-3.Articularof1.Simpleofboth2.Simpleof3.Multifrag-(21-A1)(21-A2)ulna(21-A3)radiusintacttured,ulnain-1bone,extra-bones(21-C1)1,multifrag-mentaryof(21-B1)tact(21-B2)articularofm
3、entaryofboth(21-C3)other(21-B3)other(21-C2)©2007LippincottWilliams&WilkinsS19Radius/UlnaJOrthopTrauma•Volume21,Number10Supplement,November/December2007SubgroupsandQualifications:Radius/ulna,proximal,extra-articularulnafractured(21-A1)1.Avulsionoftricepsinsertionfrom2.Metaphysealsimple(21-A1.2)3.M
4、etaphysealmultifragmentaryolecranon(21-A1.1)(21-A1.3)A1Radius/ulna,proximal,extra-articularradiusfractured(21-A2)1.Avulsionofbicipitaltuberosityof2.Necksimple(21-A2.2)3.Neckmultifragmentary(21-A2.3)radius(21-A2.1)A2Radius/ulna,proximal,extra-articular,fracturebothbones(21-A3)1.Simpleofbothbones(2
5、1-A3.1)2.Multifragmentaryof1boneand3.Multifragmentaryofbothbonessimpleofother(21-A3.2)(21-A3.3)(1)multifragmentaryulna(2)multifragmentaryradiusA3S20©2007LippincottWilliams&WilkinsJOrthopTrauma•Volume21,Number10Supplement,November/December2007Radius/UlnaRadius/ulna,proximal,articularfractureulna(2
6、1-B1)1.UnifocaI(21-B1.1)2.Bifocal(21-B1.2)3.Bifocalmultifragmentary(21-B1.3)(1)olecranon1line(1)multifragmentaryolecranon(2)olecranon2lines(2)multifragmentarycoronoidprocess(3)olecranonmultifragmentary(3)multifragmentaryofboth(4)coronoidprocessaloneB1Radius/ulna,proximal,articular,radialfracture(
7、21-B2)1.Simple(21-B2.1)2.Multifragmentarywithoutdepres-3.Multifragmentarywithdepression(1)nondisplacedsion(21-B2.2)(21-B2.3)(2)displacedB2Radius/ulna,proximal,articularof1,extra-articularofother(21-B3)1.Ulnaarticularsi
