Lunate dislocation

Case contributed by Dr Bruno Di Muzio

Presentation

Fall from height.

Patient Data

Age: 65 years
Gender: Male

CT Wrist

CT

The lunate is seen displaced and angulated volarly. Comminuted fracture is also seen in the first row of carpal bones.

Diagram

Lunate dislocation: the normal alignment of the distal radius, carpus and metacarpals should remain normal with the exception of the lunate which will be displaced and rotated volarly. 

Case Discussion

A lunate dislocation is an uncommon traumatic wrist injury that requires prompt management and surgical repair. The lunate is displaced and rotated volarly. The rest of the carpal bones are in a normal anatomic position in relation to the radius.

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