Source: Associated Press
Posted: August 21, 2006
Summary:
Doctors are testing new ways to spur cartilage to regrow in damaged knees, from implanted "cartilage plugs" to injections of bone-marrow stem cells. The need is huge. Knees are the joint most likely to go bad, and the cartilage that cushions them has only a limited natural ability to repair itself. The question is how to unlock that ability and give it a boost.
Commentary: Hopefully this will lead to new treatments for knee injuries.
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