Fig. (2) Coracoclavicular distance ratio is calculated as the ratio of the coracoclavicular distance on the affected side (C-C) to that on the contralateral side. Acromioclavicular dislocation ratio is calculated as the ratio of the distance between the undersurfaces of the acromion and distal clavicle (A-C) to the width of the distal end of the clavicle (W).