The procedure of knee joint replacement is called a total knee arthroplasty (TKA). This surgery involves replacing your knee joint with a manmade one. Osteoarthritis and rheumatoid arthritis commonly cause loss of knee function that necessitates a knee joint replacement.
Osteoarthritis is not a single disease but a culmination of problems that leads to skeletal joint failure. Symptoms include aching, stiffness, and bone enlargement. Diet, exercise, pain medication, and sometimes surgery treat osteoarthritis.