In most of the cases approx. 90% cases fracture clavicle
was not fixed and usually treated with clavicle brace or arm pouch sling or figure of 8 bandage depending upon the nature of fracture.
Fracture clavicle was only fixed if the fracture site was extremely on the lateral side. Than it was fixed with k-wires to maintain AC jiont.
As you as saying you are not able to move your shoulder as much your other shoulder, you can be pain due to frozen shoulder
or restricted movement of the shoulder.
You must consult physiotherapist for regular exercise and opening the movements of the shoulder. I think it will help you.