How Many Years Does A Knee Replacement Last? Knee replacement surgery has helped millions of patients regain mobility and reduce pain. The surgery is generally advised when knee pain, stiffness, and degeneration begin affecting daily activities. People considering surgery often want to know the expected lifespan of a knee replacement. https://medium.com/@linda.wockhardthospitals/how-long-does-knee-replacement-surgery-last-4328855286a7