Bad knees—we all know someone who has 'em. The acute pain often the result of Osteoarthritis, or degenerative arthritis as it's sometimes called—the most common type of arthritis. The disorder ...

Osteoarthritis is a degenerative type that most commonly affects the hands, knees and hips, Kehl said, noting it’s more complex than just the “wear and tear” type of arthritis that’s ...