AO classification of distal radius fractures

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Presentation transcript:

AO classification of distal radius fractures AO classification of distal radius fractures. A: Extraarticular metaphyseal fracture. Junction of the metaphysis and diaphysis is identified by the “square” or T method (greatest width on frontal plane of distal forearm; illustrated in A1). A1: Isolated fracture of distal ulna. A2: Simple radial fracture. A3: Radial fracture with metaphyseal impaction. B: Intraarticular rim fracture (preserving the continuity of the epiphysis and metaphysis). B1: Fracture of radial styloid. B2: Dorsal rim fracture (dorsal Barton fracture). B3: Volar rim fracture (reverse Barton 5 Goyrand-Smith type 2, Letenneur). C: Complex intraarticular fracture (disrupting the continuity of the epiphysis and metaphysis). C1: Radiocarpal joint congruity preserved; metaphysis fractured. C2: Articular displacement. C3: Diaphyseal-metaphyseal involvement. It should be considered that injury of the distal radioulnar joint is possible in any of these fractures. (Reproduced, with permission, from Green DP, Hotchkiss RN, Pederson WC, eds: Operative Hand Surgery, 4th ed. New York: WB Saunders; 1999.) Source: Chapter 2. Musculoskeletal Trauma Surgery, Current Diagnosis & Treatment in Orthopedics, 5e Citation: Skinner HB, McMahon PJ. Current Diagnosis & Treatment in Orthopedics, 5e; 2014 Available at: https://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/books/skin5/skin5_c002f012.png&sec=45452251&BookID=675&ChapterSecID=45451708&imagename= Accessed: October 12, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved