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contentuptodate· Content· item f7_51_7988

©2013 UpToDate ® Print Email Base of the first metacarpal fracture types Type I (Bennet's fracture-dislocation) and type II (Rolando's fracture) are intraarticular. Type III fractures are extraarticular, either transverse (IIIA) or oblique (IIIB). Type IV fractures are seen only in children and involve the proximal epiphysis. Reproduced with permission from: Eiff MP, Hatch RL, Calmbach WL. Fracture Management for Primary Care, 2nd ed., W.B. Saunders 2002. Copyright © 2002 Elsevier.