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Review
. 2015 Jun;16(2):161-5.
doi: 10.1007/s10195-014-0288-9. Epub 2014 Mar 27.

Carpometacarpal dislocation of the thumb associated with fracture of the trapezium

Ozkan Kose  1 , Mert Keskinbora, Ferhat Guler
Affiliations
Review

Carpometacarpal dislocation of the thumb associated with fracture of the trapezium

Ozkan Kose et al. J Orthop Traumatol. 2015 Jun.

Abstract

Carpometacarpal dislocation (CMC) of the thumb associated with fracture of trapezium is an extremely rare injury, with only 12 cases that sustained similar injuries reported in the literature. In this article, another patient with this rare injury was reported, and all previously published cases were extensively reviewed. The presented case and all previously published cases had a longitudinally oriented trapezium fracture, which is naturally unstable and almost always associated with dislocation of the CMC joint. In contrast to previous descriptions, we believe that CMC joint dislocation and trapezium fracture are not two distinct pathologies that occur simultaneously by chance but share cause and consequence.

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Figures

Fig. 1
Fig. 1
Volar (a) and dorsal (b) appearance at presentation
Fig. 2
Fig. 2
Anteroposterior (a) and oblique (b) radiographs. White arrow trapezium fracture
Fig. 3
Fig. 3
Postreduction radiograph of the carpometacarpal (CMC) joint showing adequate reduction and a congruent joint
Fig. 4
Fig. 4
Final hand radiographs 6 months after injury
Fig. 5
Fig. 5
Classification of trapezium fractures by Walker et al. [16]. Black lines show the fracture
See this image and copyright information in PMC

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