About Arthritis

About Arthritis

Arthritis is a disease resulting in damage of joint cartilage, the tissue that covers the ends of your bones. This damage can cause you severe pain, stiffness, disability and deformity. These symptoms can interfere with your basic daily tasks such as walking, driving a car and preparing food. The severity of symptoms can vary from mild to moderate or severe.

Arthritis is an umbrella term for many conditions affecting the joints, the most common of which is osteoarthritis.

elderly couple hiking in the mountains

Arthritis is very common, affecting 1 in 7 Australians. The prevalence of arthritis increases with age and is higher amongst women. Approximately 28% of men and 39% of women between the age of 55 to 64 years suffer from arthritis. This increases to 39% and 57% respectively for 65 years and over.1

man on tennis court grabbing knee in pain

What is Knee Osteoarthritis?

Osteoarthritis is wear and tear in a joint. It can affect main structures in your body including bone, cartilage, ligaments, and tendons. In knee osteoarthritis, cartilage in the knee gradually wears away, becoming frayed and rough, reducing the protective space that typically exists between the bones. As a result, this often results in a painful bone rubbing on bone feeling.2

When is Knee Replacement Surgery a Possible Treatment Option?

Knee Replacement Surgery is a treatment for Knee Osteoarthritis that may be recommended by a healthcare professional when all non-surgical treatment options have been attempted and no longer provide effective treatment. This short animation provides some information if you are considering if knee replacement surgery is the right treatment option for you.


1. Australian Bureau of Statistics. 2021. Arthritis and osteoporosis, 2017-18 financial year | Australian Bureau of Statistics. [ONLINE]. [Accessed 02 June 2021].
2. Arthritis of the Knee - OrthoInfo - AAOS. 2021. Arthritis of the Knee - OrthoInfo - AAOS. [ONLINE]. [Accessed 02 June 2021].


This information is intended for residents of Australia only.

The information on this site is for educational purposes only and is not medical advice. Always talk to your doctor before you make decisions about your health.

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