Osteoarthritis: The most common type of arthritis, it occurs when the cartilage that cushions the knee joint wears down over time, leading to pain, stiffness, and swelling. Rheumatoid Arthritis: An autoimmune disease that causes the body's immune system to attack the joint, leading to pain, swelling, and deformity. Gout: A type of arthritis that occurs when uric acid crystals accumulate in the joint, causing sudden and severe pain. Best Knee Replacement Hospital in Vadodara Best Knee Replacement Surgeon in Vadodara