Doctors administer knee gel injections to treat knee osteoarthritis, the most common form of arthritis. They are also known as hyaluronic acid injections, viscosupplementation, or rooster comb ...

Knee osteoarthritis is a complex disease that affects the whole joint, including bone, cartilage, ligaments and muscles.

A single shot that appears to regrow worn knee cartilage and head off arthritis sounds like science fiction, yet early data from aging and cartilage research are edging that idea closer to reality.