Most people who have had a total knee replacement require outpatient physical therapy following surgery. When you go to outpatient physical therapy you can expect to visit a clinic that looks like a gym or fitness center, there may be treadmills and bikes and various weight training machines.
Outpatient physical therapy after a total knee replacement typically lasts 4 to 8 weeks, but the amount of therapy needed depends upon your condition before surgery, motivation, and general health. Remember that everyone heals at different rates, and your recovery time may be shorter or longer.
Be sure to work closely with your doctor and physical therapist to understand your specific rehabilitation process.