Could a new treatment which extracts fat cells from the tummy and injects them into aching joints be the bees knees?

For millions of people in this country, knee pain is part and parcel of their daily lives.

Around one in five people aged over 45 has osteoarthritis, where the cartilage that cushions the bone in our knees wears thin. It’s a growing problem, says orthopaedic surgeon Mark Wilkinson, who is also a professor of orthopaedics at the University of Sheffield.

‘The incidence is increasing because of our ageing population, and because rates of obesity, a major risk factor for knee osteoarthritis, are rising,’ he says.

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