Knee replacement surgery is a common procedure that can help relieve pain and improve function in people with osteoarthritis of the knee. Osteoarthritis is a degenerative joint disease that causes the cartilage in the joint to become damaged, dry, and brittle. This can cause pain and limited movement in the joint. Knee arthroplasty also called a “complete knee replacement,” is the most common type of surgical treatment for osteoarthritis of the knee