Obesity reduces knee replacement age

A study by the University of Queensland Rural Clinical School (UQRCS) compared data from the Australian Bureau of Statistics (ABS) National Health Survey 2017-18 with the National Joint Replacement Registry of Australia. Australian Orthopedic Association.

The researchers found that of the 56, 217 patients who received osteoarthritis (OA) knee replacements, 57.7% were obese.

UQRCS study leader Associate Professor Srinivas Kondalsamy-Chennakesavan said the risk of knee replacement for arthritis is related to a person’s body mass index (BMI).


“Obesity women aged 55-64 are 17.3 times more likely to have a knee replacement than their healthy weight counterparts, while obese men in the same age group are at increased risk,” he said. knee position is 5.8 times higher.

“The obese patients with the highest BMI ratios were also seven years younger on average when they had their knee replacements, compared with those of normal weight.”

Around 2.2 million Australians have arthritis and nearly a third of adults are obese, according to ABS.

Lead investigator, Dr. Chris Wall said Weight loss is an important step towards improving outcomes for individuals and Australia’s health system.

“Moderate weight loss has been shown to effectively reduce the symptoms of knee arthritis, and obese patients who maintained a 10 percent reduction in body weight significantly improved their condition,” said Dr. pain and function”.

“By 2030, it is expected that more than 161,000 knee replacements will be performed annually.

“Urgent action is needed at the national level to change our approach towards reducing obesity, otherwise Australia could face a growing burden of future knee replacements. “

This research was carried out in collaboration with Professor Richard de Steiger, Professor Christopher Vertullo, Dr James Stoney, Professor Stephen Graves and Mrs. Michelle Lorimer.

Source: Eurekalert

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