Season 3 Case 14

History: Wrist Pain following trauma

Season 3 Case 14

Case 14

History: pain/deformity following trauma


Answer:

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Does the lunate articulate normally with the distal radius? YES

Does the capitate articulate normally with the lunate? NO

So the lunate is NOT dislocated and this is a :

PERILUNATE dislocation

reference:http://www.learningradiology.com/notes/bonenotes/perilunatedislocatepage.htm

Notice the stages of carpal dislocation based upon ligament injury/severity. The perilunate is less severe (Stage 3) than a lunate dislocation (Stage 4).

And always look for an associated scaphoid fx.