Knee replacement surgery extends independence.  Procedure increases agility, motor skills, and enables daily activities.
D000203:Activities of Daily Living; D000368:Aged; D019645:Arthroplasty, Replacement, Knee; D003362:Cost-Benefit Analysis; D006801:Humans; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000191:economics / Q000601:surgery*