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Trauma
intermediate
X-Type

Acromioclavicular Joint Injuries - Classification and Management

Shoulder Trauma

A 28-year-old male cyclist presents after a direct fall onto his left shoulder. He has tenderness over the AC joint with a prominent distal clavicle. AP radiograph shows 75% superior displacement of the clavicle relative to the acromion. The axillary view shows normal anteroposterior alignment. Regarding acromioclavicular joint injuries:

Mark each as TRUE or FALSE

A

The Rockwood classification extends the Tossy classification to include Types IV-VI; Type III involv...

B

The CC ligaments (conoid and trapezoid) provide vertical stability while the AC ligaments (superior ...

C

Type III injuries should be treated surgically in all patients given the significant CC ligament dis...

D

Type III injury management is controversial; current consensus favors initial conservative treatment...

E

Type IV injuries show posterior displacement into the trapezius and require axillary view for diagno...

Answer the questions to see explanations

Click T (True) or F (False) for each option