Score: Rockwood's classification
Use: Acromioclavicular joint injury
Type I
Sprain of the acromioclavicular or coracoclavicular ligament
Type II
Subluxation of the acromioclavicular joint associated with a tear of the acromioclavicular ligament, but the coracoclavicular ligament is intact
Type III
Dislocation of the acromioclavicular joint with injury to both acromioclavicular and coracoclavicular ligaments
Type IV
Clavicle is displaced posteriorly through the trapezius muscle
Type V
Gross disparity between acromion and clavicle which displaces superiorly
Type VI
Dislocated lateral end of clavicle lies inferior to the coracoidReference
Classification and Diagnosis in Orthopaedic Trauma. Editors: Rahij Anwar, Kenneth W. R. Tuson, Shah Alam Khan. Cambridge University Press, 2008