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Dr Rod Hughes sets out how pharmacists can play a pivotal role in steering people with joint pain towards a prevention programme… Joint health supplements are big business in the UK, with millions of pounds spent over the counter every year. People turn to these supplements for various reasons, but most are seeking relief from the symptoms of arthritis, a group of painful long-term conditions thought to affect around 10 million people in this country. Osteoarthritis (OA) is the most common form of arthritis, affecting around eight million people in the UK. The condition is generally age-related, with joint pain and stiffness developing as the cartilage between the bones gradually wears away. OA changes and the inflammation involved causes difficulty moving and considerable pain. Rheumatoid arthritis (RA) tends to affect younger people and is caused by the body's immune system attacking the joints. As a nation we tend to ignore our joints until they cause us problems, resulting in an increasing number of people taking long-term analgesics to control the pain or needing surgery to repair knees and hips. Treatment guidelines followed by doctors in the UK recommend that people with arthritis are advised to maintain a healthy weight and keep physically active, while strengthening their muscles and protecting any damaged joints during daily activities.

The joint structure is composed of bones that are separated by cartilage which acts as a pad for adjacent bones. Ligaments are attached to the bones around the joint and there are fluid filled sacs which provide gliding surface for adjacent tendons.