Imaging Case of the Week 261 Answer

The right shoulder x-ray shows a grade III dislocation of the right acromio-clavicular joint. There is an upward displacement of the distal clavicle compared to the acromion. The coraco-clavicular (i.e. CC) distance is also increased; normally, the CC distance is approximately 10-13 mm and in our case, it is nearly 23 mm.

The Rockwood six grade classification is commonly used to classify ACJ injuries. Further information can be found here.


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