A pioneering trial to treat knee arthritis by using patients' own stem cells to regrow worn out cartilage is to start in the UK later this year; if successful the new technique offers hope to millions of people who suffer with the pain and stiffness of osteoarthritis, although the researchers warn that the treatment is unlikely to remove the need for joint replacement surgery. The trial will ...

Researchers say that stem cells taken from the patient's bone marrow could be transferred to the infected joint to encourage growth of the cartilage.

Joint pain is typically associated with old age, but nearly 300,000 children in the U.S. actually suffer from arthritis. The arthritis in older people is degenerative, caused by wear and tear damage to cartilage over the years.

It's a problem that plagues more than 21 million Americans: Osteoarthritis causes cartilage in the joints to break down.

IN the past, if you had a cartilage lesion, there would be only two options to choose fromaccept your fate of early arthritis or, for other cases, get knee replacement surgery.