What Is Knee Osteoarthritis?

Knee osteoarthritis is the most common form of osteoarthritis. Learn more about how managing the disease can help to preserve your range of motion, mobility, and joint function.

The knees are the joints most often affected by osteoarthritis (OA). Knee arthritis occurs when the cartilage in the knee breaks down, which can happen due to aging, being overweight, or injury, among other things.

The disease process begins before symptoms—pain, stiffness, and motion restriction—are noticed. Because of this and the fact that knee osteoarthritis is a progressive disease, getting a diagnosis and proper treatment as early as possible is key.