Season 2 Case 15
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Answer: Lunate dislocation
Notice the pie-shaped lunate on the frontal, but the lateral is the give-away with the lunate rotated volarly (towards the palm) with the remained of the carpal bones aligned (notice the scaphoid and the capitate still align up in our nice normal “concentric C” pattern.
Short write up: http://radiopaedia.org/articles/lunate-dislocation
Keys to remember is that this is a more severe injury than the more commonly seen perilunate dislocation. This generally requires prompt surgical repair.