Acromioclavicular joint injury: grade II
Man with a history of right shoulder trauma after a fall striking the shoulder against the ground.
MRI Right shoulder
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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).
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.