Acromio-clavicular joint injury

Case contributed by Dr Kirpal Chauhan
Diagnosis almost certain


Fall down from bike

Patient Data

Age: 60 years
Gender: Male

Under surface of clavicle does not align with under surface of acromion with superior subluxation of clavicle. Normal coracoclavicular distance (7 mm) and acromioclavicular joint space (4.4 mm).

A left 4th bifid rib is seen anteriorly.

Case Discussion

The patient fell down from the bike and developed acromioclavicular (AC) joint tenderness. Shoulder frontal radiograph showed type II Rockwood AC joint injury (rupture of an acromioclavicular ligament).

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