As I get older, I’m having a harder time getting up and down stairs because of leg weakness and pain. My doctor is suggesting a total knee replacement. How will this help?

The most common cause of pain and muscle weakness in older adults is arthritis. The surface of the joint gets worn away until the bones begin to rub against each other. This causes pain, swelling, and difficulty moving. If this is true for you, replacing the joint can relieve the pain and improve your ability to walk, climb stairs, get in and out of the car, and even take up golf or some other activity that interests you.