Carpometacarpal fracture dislocation

Case contributed by A.Prof Frank Gaillard


30 year old 'assaulted' one day ago. Swollen right hand and wrist. Decreased range of motion.

Patient Data

Age: 30
Gender: Male


Case Discussion

AP, oblique and lateral views of the right hand and wrist have been performed.  

There is a comminuted, fracture of the base of the 4th metacarpal involving the articular surface. On lateral projection the carpometacarpal joint of the 4th digit appears disrupted with dorsal subluxation / dislocation of the base of the 4th metacarpal, resulting in palmar angulation and shortening. Bone fragments projected posterior to the fracture on the lateral projection probably have their origin from the 4th metacarpal.  

A small bone fragment is also seen at the base of the 5th metacarpal on oblique projection, presumably representing another fracture.

No other fracture is identified.  

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Case information

rID: 12281
Published: 7th Nov 2010
Last edited: 16th Nov 2015
Inclusion in quiz mode: Included

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