Osteoarthritis is the most common form of chronic arthritis. The condition affects approximately 1.4 million Australians, or approximately 7.3% of the population. The cause of osteoarthritis (OA) is not completely understood. Being overweight or obese can contribute to OA, particularly in females. Obesity is more strongly associated with OA of the knee than the hip. Individuals with a history of joint trauma or injury are more likely to develop OA. Joint injuries include dislocation, fracture, and tears of the cartilage or ligaments. Congenital abnormalities (conditions that are present at birth) can cause abnormal joint alignment, which may lead to OA. The alignment of a joint affects the load across the cartilage and other tissues. Areas of cartilage under high load or pressure can degrade faster or be damaged by joint movement. This may lead to early-onset OA. OA may run in families. A person is more likely to develop OA if their parents have OA that is early in onset or involves more than one joint.
Total knee replacement surgery was first performed in 1968. Since then, knee replacement surgeons have been using improvements in surgical materials and techniques have greatly increased its effectiveness. Total knee replacement, or total knee arthroplasty, is a surgical procedure in which parts of the knee joint are replaced with artificial parts (prostheses). Dr Singh has been performing knee replacement surgery since 2004.
Approximately 97% of total knee replacements performed in Australia are due to OA. The disease is uncommon before the age of 45 years and mostly affects people aged 65 years or over. It is more common in females than in males.
Osteoarthritis usually progresses slowly and may produce non-specific local symptoms that impair health-related quality of life, such as pain with joint use, stiffness, loss of joint mobility and function and alteration in the shape of the joint. The knee is most commonly involved, followed by the hip. The spine, foot and joints of the hand can also be affected.
In the Hospital – Knee Replacement Recovery Time The day after your surgery, it is also important to get out of bed and mobilise (initially under supervision by the physiotherapist and nursing staff) to reduce digestive/circulatory problems and encourage healing. Delay in mobilisation can increase the chances of developing post-operative constipation and clots in the leg.