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Arthritis

Updated 02 October 2018

What is rheumatoid arthritis?

Rheumatoid arthritis (RA) is a chronic, progressive, autoimmune disease characterised by inflammation of the peripheral joints.

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Rheumatoid arthritis (RA) is a chronic, progressive, autoimmune disease characterised by inflammation of the peripheral joints of the hands, wrists, elbows, shoulders, hips, knees and feet, usually on both sides of the body.

Damage is caused by persistent inflammation of the synovium, the membrane lining the joint, with subsequent damage or destruction of the cartilage, bone erosion and joint deformities. Unfortunately, once cartilage and joints have been damaged by inflammation, they don’t heal well, so much of the treatment of RA is aimed at suppressing the inflammation so typical of the condition.

Although normally confined to the joints, rheumatoid arthritis may affect other systems such as the lungs, heart and nervous system, but this is rare. It’s now understood that there’s an immune reaction against the body's own synovial tissue, called an autoimmune reaction.

Reviewed by Dr Stella Botha, rheumatologist at Groote Schuur Hospital, Cape Town (MBChB, MRCP, PhD). November 2017

Image credit: Shutterstock

 

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Arthritis expert

Professor Asgar Ali Kalla completed his MBChB (Bachelor of Medicine and Bachelor of Surgery) degree in 1975 at the University of Cape Town and his FRCP in 2003 in London. Professor Ali Kalla is the Isaac Albow Chair of Rheumatology at the University of Cape Town and also the Head of Division of Rheumatology at Groote Schuur Hospital. He has participated in a number of clinical trials for rheumatology and is active in community outreach. Prof Ali Kalla is an expert in Arthritis for Health24.

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