Weight gain in middle age increases knee replacement risk, study shows
- Adults who gained only 5kg are more likely to have a total knee replacement
- Weight gain increases the risk of knee osteoarthritis, the most common cause of pain
- While weight loss can relieve symptoms, preventing weight gain is more effective
Adults who are just under a rock in middle age are much more likely to have a knee replacement, a study finds.
Women who gained 5 kg were a third more likely to have a total knee replacement, while the odds increased by 25 percent for men.
Weight gain increases the risk of knee osteoarthritis, the most common cause of joint pain.
The team analyzed 20 studies of hundreds of thousands of people.
Lead author Professor Anita Wluka, of Monash University in Australia, said: “Weight loss can alleviate the symptoms of knee osteoarthritis by reducing the load on the joint and lowering inflammation levels.”
Women who gained 5kg were a third more likely to have a total knee replacement
But the team found that stopping weight gain in the first place is more effective than losing it, because knee pain can make exercise difficult.
dr. Wluka and her team reviewed existing research on the relationship between weight gain and knee osteoarthritis.
Overall weight gain was found to have a significant adverse effect on pain, stiffness, function, quality of life, and changes in the joint visible on X-rays.
Weight gain was also linked to more damage to cartilage, bone and other parts of the joint.
Men’s odds of needing a total knee replacement increased by 25 percent if they gained just five pounds
Looking specifically at two studies involving more than 250,000 participants, the authors concluded that weight gain significantly increased the likelihood of total knee replacement surgery.
dr. Wluka added: “Preventing osteoarthritis and slowing its progression would not only reduce the need for surgery, but it would also take the pressure off the health service, which, as a result of our aging and increasingly overweight population, faces.” with an increasing demand for knee replacement.
“Given the challenges associated with weight loss, attention should also be paid to preventing weight gain, with people with osteoarthritis also receiving advice and support on how to maintain their current weight, something that can be particularly problematic as we age.” .
“Weight maintenance in middle age would reduce the risk of knee osteoarthritis, and in people with osteoarthritis, it would reduce the aggravation of pain, loss of function and the need for expensive joint replacements.”