Klassifikation von Verletzungen des Akromioklavikulargelenkes nach Rockwood

Anwendung

Verletzung des AC-Gelenkes

Typ 1 A mild force applied to the point of the shoulder does not disrupt either the acromioclavicular or the coracoclavicular ligaments.
(Sprain of acromioclavicular ligament, acromiclavicular joint intact, deltoid and trapezius muscles intact)
Typ 2A moderate to heavy force applied to the point of the shoulder will disrupt the acromioclavicular ligaments, but the coracoclavicular ligaments remain intact. (Acromioclavicular joint wider; may be a slight vertical separation when compared with the normal shoulder, sprain of the coracoclavicular ligaments, coracoclavicular interspace might be slightly increased, deltoid and trapezius muscles intact)
Typ 3When a severe force is applied to the point of the shoulder, both the acromioclavicular and coracoclavicular ligaments are disrupted. (Acromiclavicular joint dislocated and the shoulder complex displaced inferiorly, coracoclavicular interspace greater than normal shoulder, deltoid and trapezius muscles usually detached from the distal end of the clavicle. In children, a pseudodislocation of the acromioclavicular joint occurs, the coracoclavicular ligaments remain intact to the intact periosteal tube, and the clavicle is displaced out of the periosteal tube)
Typ 4In this major injury, not only are the acromioclavicular and coracoclavicular ligaments disrupted, but the distal end of the clavicle is displaced posteriorly into or through the trapezius muscle. Coracoclavicular space may be displaced, but may appear to be the same as the normal shoulder, deltoid and trapezius muscles detached from the distal clavicle.
Typ 5A violent force has been applied to the point of shoulder that not only ruptures the acromioclavicular and coracoclavicular ligaments but also disrupts the deltoid and trapezius muscle attachments and creates a major separation between the clavicle and the acromion.
Acromioclavicular joint dislocated and gross disparity between clavicle and the scapula.
Typ 6Another major injury is an inferior dislocation of the distal end of the clavicle to the subcoracoid position. The acromoiclavicular and coracoclavicular ligaments are disrupted. Coracoclavicular interspace reversed with the clavicle being inferior to the acromion or the coracoid, deltoid and trapezius muscles are detached from the distal clavicle.