What is the most common cause or mechanism of ACJ injury?
The most common cause of ACJ injury is a direct impact on the acromion from a fall with the arm adducted. This impact drives the acromion inferiorly, spraining the intra-articular acromioclavicular ligaments. The coracoclavicular ligament may also be damaged depending on the severity of fall.
What are the complications of ACJ dislocation?
If not properly managed, ACJ dislocation may lead to accelerated osteoarthritis and chronic pain. There can be externally visible deformity, reduced range of shoulder movements and distal clavicle osteolysis
CT confirms the findings of acromioclavicular dislocation.