By C. Benjamin Ma, MD
“Pain and tenderness at the top of the shoulder and difficulty reaching the arm across the body—to swing a golf club or put on a seat belt, for example—may be a sign of acromioclavicular arthritis.
The acromioclavicular (ah-kro-mee-o-klah-vik-u-ler) joint, sometimes called the AC joint, is located at the top of the shoulder where the clavicle (collarbone) and highest part of the scapula (shoulder blade) meet. Most people are not familiar with this joint in the body, but arthritis in the AC joint is actually more common than arthritis in the glenohumeral joint, the shoulder’s large ball-and-socket joint.”
For the full article, follow this link: http://www.arthritis-health.com/types/osteoarthritis/what-acromioclavicular-arthritis-ac-joint-arthritis
