What is osteoarthritis?
Osteoarthritis is a chronic, progressive disease of the joints.
In a healthy joint, cartilage covers the bone surfaces and allows smooth, pain-free movement.
When osteoarthritis sets in, this cartilage gradually breaks down. The joint then becomes the site of chronic inflammation, which leads to pain, stiffness and reduced mobility.
Over time, the body tries to stabilise the joint by producing extra bone around it. These bony changes are visible on radiographs and are the classic signs of osteoarthritis.
