Definition:

Arthritis characterized by erosion of articular cartilage of the AC/clavicle which becomes soft, frayed, and thinned with eburnation of subchondral bone and outgrowths of marginal osteophytes; pain and loss of function result.

Symptoms:

• Pain in the front of the shoulder
• Point tender on the acromioclavicular joint
• Pain when reaching across to the other shoulder with the affected arm
• Pain with increased activity

Causes:

• Faulty posture
• Inappropriate weight lifting techniques
• Old injuries or trauma
• Lack of strength of shoulder stabilizers

Treatment:

• Stretching and shoulder ROM exercises
• Posture program
• Strengthening shoulder stabilizers