Acromioclavicular joint injury: grade II

Case contributed by Dr Bruno Di Muzio


Man with a history of right shoulder trauma after a fall striking the shoulder against the ground.

Patient Data

Gender: Male

MRI Right shoulder

Coronal T2-weighted fat-saturated MR image shows type II acromioclavicular joint dislocation. Note disruption of all ligamentous fibers around acromioclavicular joint. Sagital T2-fat-saturated MR image shows oedematous fluid around the coracoclavicular ligaments (rupture of conoid and trapezoid ligaments).


Case Discussion

On MRI series we can see a type II acromioclavicular joint injury with the following finds:

  • the coracoclavicular ligament complex  (conoid and trapezoid ligament) has sign of rupture.
  • blood and fluid are seen in the coracoclavicular interspace.
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Case information

rID: 13572
Case created: 23rd Apr 2011
Last edited: 12th Mar 2017
Inclusion in quiz mode: Included

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