What is Osteoarthritis?

In a healthy knee, the ends of the thigh bone, the shin bone, and the knee cap are covered by a layer of articular cartilage. This cartilage acts as a cushion and provides a smooth, gliding surface for the movement of the knee.

Through the years, tremendous demands are placed on our knees. In some, the cartilage can begin to fracture or wear away. If the wear becomes significant, the rubbing of exposed bone can result in stiffness, swelling, and debilitating pain. This is called osteoarthritis and it affects millions worldwide.

The exact causes of osteoarthritis are not fully understood. But osteoarthritis is more likely in those who are older, have a history of past knee injuries, or have placed a lot of stress on their knees from heavy physical activity or weight. This process usually begins on the medial or inner side of the knee, but can occur in any or all of the three compartments. Osteoarthritis is considered a progressive disease.