Total knee replacement is actually a resurfacing procedure where approximately ½ inch of bone is removed from the lower end of the thigh bone (femur), the upper end of the lower leg bone (tibia), and the under-surface of the knee cap (patella). These surfaces are then covered with a metal prosthesis on the femur and a plastic prosthesis on the tibia and patella.
Total knee replacement is a rapidly-growing procedure. Initially, knee replacement was intended for patients in their late 60s and 70s. Recent improvements to the prosthesis and overall surgical technique have enabled the procedure to be performed on patients in their 50s as well as their 80s and 90s. Each year, over 600,000 primary total knee replacements are performed in the United States.
Below-Knee Amputation - MoveForward
During a tibial osteotomy, the tibia is cut just below the joint, and a wedge of bone is either added or removed from the tibia just below the knee to realign the joint. The graft is usually taken from the pelvic bone. The osteotomy is held in place with a metal plate or pins.