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Basics
Description
The AC joint can become a source of pain in the shoulder, often because of degenerative osteoarthritis, posttraumatic arthritis, or distal clavicle osteolysis.
Diagnosing problems of the AC joint:
Best diagnosed with pain on palpation, reproduction of pain with cross-body adduction, and diagnostic injections
Plain radiographs, especially the Zanca view, or bone scans may help image the [...]



