Is it necessary to cut the leg off during knee replacement surgery?

No. Knee replacement surgery does not require amputating the leg. The procedure involves removing the damaged portions of the knee joint, including the worn-out cartilage and bone, and replacing them with artificial components, called implants. In most cases, the surgeon will make incisions around the knee to access the joint and perform the replacement. The leg remains intact and is not amputated during knee replacement surgery.