Degeneration of the joint cartilage and the underlying bone
The primary cause of osteoarthritis is aging and heredity.
Staying at a healthy weight or lose weight.
About 70 million people have will have passed their 65th birthday and be at a risk for osteoarthritis. It is the most common type of arthritis.
The space between the bones has narrowed, an abnormal increase in bone density, and bony projections, cysts, or erosion is visible.