Pathoanatomy of Acromioclavicular Joint Instability

The diagnosis, prognosis and management of acromioclavicular joint instability remain a point of debate with over 60 types of stabilization procedure described in the published literature. This is a sure sign that we are yet to solve the problem of AC joint instability. In this chapter, we describe the pathoanatomy of AC joint instability using historical articles and classification systems and use these to outline a progressive concept of AC joint instability that will further the reader’s understanding of the problem and how to solve it.

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