Answer:Injuries to the SCJ are rare, comprising less than 1% of all joint dislocations and only 3% of shoulder girdle injuries.
Explanation:
http://brownemblog.com/blog-1/2018/1/5/scj-dislocation#:~:text=Injuries%20to%20the%20SCJ%20are,3%25%20of%20shoulder%20girdle%20injuries.
