What is Shoulder Osteoarthritis?
Shoulder OA is osteoarthritis of the shoulder joint. It is a degenerative joint disease that comes from wear and tear with age and degeneration of cartilage that covers the joint surface. With diminished cartilage, inflammation, irritation, pain and swelling can occur. The progression of this disease leads to bone spurs, which is caused by the ends of two bones rubbing together.
Also known as “wear-and-tear” arthritis, osteoarthritis is a condition that destroys the smooth outer covering (articular cartilage) of bone. As the cartilage wears away, it becomes frayed and rough, and the protective space between the bones decreases. During movement, the bones of the joint rub against each other, causing pain.
Osteoarthritis usually affects people over 50 years of age and is more common in the acromioclavicular joint than in the glenohumeral shoulder joint.