Everything You Need to Know About Knee Replacement Surgery In order to live a healthy and active lifestyle, good knees are essential! However, when suffer from an injury or arthritis occurs, particularly osteoarthritis, your ability to bend and flex your knees can become restricted due to damage, inflammation and pain. If not taken care of properly, the damage can progress, making life so much more difficult and painful. Deterioration of your joint and surrounding tissue can make it quite difficult to perform basic daily activities, even while you sit or lie down. While cartilage wears down and bone rubs against bone, pain and reduced mobility follow. Knee replacement surgery is a common solution that provides dramatic pain relief for more than 90 percent of patients. The vast majority of knee replacement procedures are used to treat osteoarthritis. The procedure which was introduced in 1968, relies on a mechanical implant to replace severely arthritic or damaged knee joints. Total knee replacement (TKR), also called total knee arthroplasty (TKA), is considered one of the safest and most effective procedures in orthopedics. Two different types of knee replacement exist: total and partial. Total Knee Replacement Total Knee Replacement makes up about 90 percent of all knee replacement procedures. During TKR, a surgeon plans to repair your knee joint by covering the thighbone with a metal covering and encasing the shinbone with plastic. The prosthesis replaces the rough and irregular surfaces of the worn bone with smooth surfaces. In many cases, the surgeon can also replace the undersurface of your kneecap with a plastic surface. This further reduces pain and provides a smoother functioning joint. If this is an option you are considering, it’s important to remember that the procedure involves some removal of bone and cartilage. This is a major surgery! After a TKR, you should expect to spend three to five days at the hospital. Doctors will recommend you begin weight-bearing therapy immediately following the operation. In addition, you will undergo some combination of physical and occupational therapy starting at the hospital. In most cases, you will likely be able to stand and walk, at least with the assistance of a cane or walker, before you leave the hospital. Starting in the hospital, and usually before you exit the operating room, your knee may be cradled in a passive motion machine and medical staff will monitor the flexion (bending in) and extension (extending out) limits of your knee. After discharge, it is probably you will go home for recovery and rehabilitation.