2019•Oxford University Press eBooksRequires access
Acromioclavicular Joint Trauma
M. O’Keeffe, Kiran Khursid, Peter L. Munk, Mihra S. Taljanovic
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Abstract
Chapter 10 reviews acromioclavicular joint trauma. The acromioclavicular (AC) joint represents the articulation between the acromion process and lateral clavicle and is a synovial joint stabilized by 3 ligaments. AC joint injuries are most common in active/athletic young adults. The most common injury is AC joint dislocation sustained during contact sports. This injury usually happens from a fall on an outstretched arm. The degree of separation can be evaluated by radiography and, if needed, CT and MRI. The injury is divided into 6 types by the Rockwood classification based on degree of separation of the acromion from the clavicle.