Acromioclavicular joint injury - type 3

Case contributed by Dr Henry Knipe


Pain in shoulder post tackled at football.

Patient Data

Age: 30 years
Gender: Male

Right AC joint is widened with increased coracoclavicular distance and superior displacement of the distal clavicle compared to acromion process. Overlying soft tissue swelling. 


Grade III AC joint injury. 

AC joint stabilization has been performed with fixation present at the origin/insertion of the CC ligament. Mild subluxation of the AC joint persists. 

Case Discussion

The defining aspect of a Rockwood type 3 AC joint injury is superior displacement of the clavicle compared to the acromion as well as an increased coracoclavicular distance. 

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