¡Descarga Clasificación de las fracturas y más Apuntes en PDF de Traumatología solo en Docsity! Müller AO Classifi cation of Fractures—Long Bones This leafl et is designed to provide an introduction to the classifi cation of long-bone fractures. 1 Humerus 11 proximal (types according to topography and extent of bone lesion) 13-A1 13-A2 13-A3 13-C1 13-C2 13-C313-B1 13-B2 13-B3 12 diaphyseal 13 distal 11-A1 11-A2 11-A3 11-B1 11-B2 11-B3 11-C1 11-C2 11-C3 12-A1 12-A2 12-A3 12-B1 12-B2 12-B3 12-C1 12-C2 12-C3 13-A extraarticular fracture 13-A1 apophyseal avulsion 13-A2 metaphyseal simple 13-A3 metaphyseal multifragmentary 13-B partial articular fracture 13-B1 sagittal lateral condyle 13-B2 sagittal medial condyle 13-B3 coronal 13-C complete articular fracture 13-C1 articular simple, metaphyseal simple 13-C2 articular simple, metaphyseal multifragmentary 13-C3 articular multifragmentary 11-A extraarticular unifocal fracture 11-A1 tuberosity 11-A2 impacted metaphyseal 11-A3 nonimpacted metaphyseal 11-B extraarticular bifocal fracture 11-B1 with metaphyseal impaction 11-B2 without metaphyseal impaction 11-B3 with glenohumeral dislocation 11-C articular fracture 11-C1 with slight displacement 11-C2 impacted with marked displacement 11-C3 dislocated 12-A simple fracture 12-A1 spiral 12-A2 oblique (>_ 30°) 12-A3 transverse (< 30°) 12-B wedge fracture 12-B1 spiral wedge 12-B2 bending wedge 12-B3 fragmented wedge 12-C complex fracture 12-C1 spiral 12-C2 segmental 12-C3 irregular 41-A1 41-A2 41-A3 41-B1 41-B2 41-B3 41-C1 41-C2 41-C3 42-A1 42-A2 42-A3 42-B1 42-B2 42-B3 42-C1 42-C2 42-C3 43-A1 43-A2 43-A3 43-B1 43-B2 43-B3 43-C1 43-C2 43-C3 4 Tibia/fi bula 43 distal 42 diaphyseal 41 proximal 41-A extraarticular fracture 41-A1 avulsion 41-A2 metaphyseal simple 41-A3 metaphyseal multifragmentary 41-B partial articular fracture 41-B1 pure split 41-B2 pure depression 41-B3 split-depression 41-C complete articular fracture 41-C1 articular simple, metaphyseal simple 41-C2 artic. simple, metaphyseal multifragmentary 41-C3 articular multifragmentary 42-A simple fracture 42-A1 spiral 42-A2 oblique (>_ 30°) 42-A3 transverse (< 30°) 42-B wedge fracture 42-B1 spiral wedge 42-B2 bending wedge 42-B3 fragmented wedge 42-C complex fracture 42-C1 spiral 42-C2 segmental 42-C3 irregular 43-A extraarticular fracture 43-A1 simple 43-A2 wedge 43-A3 complex 43-B partial articular fracture 43-B1 pure split 43-B2 split-depression 43-B3 multifragmentary depression 43-C complete articular fracture 43-C1 articular simple, metaphyseal simple 43-C2 artic. simple, metaphyseal multifragmentary 43-C3 articular multifragmentary 44-A1 44-A2 44-A3 44-B1 44-B2 44-B3 44-C1 44-C2 44-C3 44 malleolar segment C op yr ig ht © 2 00 7 by A O P ub lis hi ng , S w itz er la nd C he ck h az ar ds a nd le ga l r es tr ic tio ns o n w w w .a of ou nd at io n. or g/ le ga l AO E- E1 -0 18 .1 44-A infrasyndesmotic lesion 44-A1 isolated 44-A2 with fractured medial malleolus 44-A3 with posteromedial fracture 44-B transsyndesmotic fi bular fracture 44-B1 isolated 44-B2 with medial lesion 44-B3 with medial lesion and Volkmann‘s fracture 44-C suprasyndesmotic lesion 44-C1 fi bular diaphyseal fracture, simple 44-C2 fi bular diaphyseal fracture, multifragmentary 44-C3 proximal fi bular lesion 8- Foot 4- Tibia/fi bula 3- Femur/patella 7- Hand 9- Craniomaxillofacial bones 1- Humerus 2- Radius/ ulna 5- Spine 15- Clavicula 91- 92- 44- 43- 42- 41- 33- 32- 31- 23- 22- 21- 13- 12- 11- 51- 53- 52- 6- Pelvis/acetabulum 61- 62- 15- 14- 14- Scapula 34- AO/OTA system for numbering the anatomical location of a fracture in three bone segments (proximal = 1, diaphyseal = 2, distal = 3) Bone 1 2 3 4 Segment 1 2 3 (4) Type A B C Group 1 2 3 Subgroup .1 .2 .3 4 long bones 3 or 4 segments 3 types 3 groups 3 subgroups Diagnosis = “essence” of the fracture MorphologyLocalization - Anatomical location of the fracture. Anatomical location is designated by two numbers: one for the bone and one for its segment (ulna and radius as well as tibia and fibula are regarded as one bone). The malleolar segment (44-) is an exception. The proximal and the distal segments of long bones are defined by a square whose sides have the same length as the widest part of the epiphysis (exceptions 31- and 44-). Alphanumeric structure of the Müller AO Classification of Fractures—Long Bones for adults 11- 13- 12- 21- 23- 22- 31- 33- 32- 41- 43- 42- 44- Example 32-B2 3 femur 2 diaphyseal B wedge fracture 2 bending wedge-
