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Acromioclavicular joint injuries - Rockwood classification

Classification

Type I: Sprain of the acromio-clavicular or coracoclavicular ligament

Type II: Subluxation of the acromioclavicular joint associated with a tear of the acromioclavicular ligament; 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 the acromion and clavicle, which displaces superiorly

Type VI: Dislocated lateral end of the clavicle lies inferior to the coracoid

Explanation

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Reference(s)

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