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Bennett and Rolando fractures of the thumb metacarpals

Bennett and Rolando fractures of the thumb metacarpals
(A) A typical Bennett fracture is a unicondylar fracture of the base of the first metacarpal with the fracture fragment consisting of the volar ulnar corner of the proximal metacarpal.
(B) A Rolando fracture is multi-fragmentary, with the entire articular base of the metacarpal being involved. By definition, no portion of the metacarpal shaft is in continuity with the carpometacarpal joint.
From: Capo JT, Mitgang JT, Harris C. Operative treatment of thumb carpometacarpal joint fractures. In: Operative Techniques in Hand, Wrist, and Elbow Surgery, 2nd ed, Hunt TR, Wiesel SW (Eds), Wolters Kluwer, Philadelphia 2016. Copyright © 2016. Reproduced with permission from Wolters Kluwer Health. Unauthorized reproduction of this material is prohibited.
Graphic 108427 Version 2.0

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