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Osteoarthritis is a joint disease that mostly affects cartilage. Cartilage is the slippery tissue that covers the ends of bones in a joint. Healthy cartilage allows bones to glide over each other. It also helps absorb shock of movement.
Osteoarthritis is a common degenerative disorder of the articular cartilage associated with hypertrophic changes in the bone.1 Risk factors include genetics, female sex, past trauma, advancing age, and obesity.2 As the U.S. population ages and becomes more obese, family physicians can expect to see more patients with osteoarthritis.