Joint preservation techniques are used in patients with cartilage defects to preserve the joints and to restore the function. Articular cartilage restoration relieves pain, improve function and can delay or prevent the onset of arthritis in the joint.
Articular cartilage is the cartilage that covers the bony surface of joints. It has a smooth surface which allows the bones of the knee joint to slide over each other with very little friction. Articular cartilage is often damaged by injury or normal wear and tear. Articular cartilage, when damaged or worn away, the affected joint becomes painful, stiff, and has limited range of motion. As the articular cartilage has limited ability to heal by itself, surgical repair may be required to stimulate the growth of new cartilage.