Knee replacement is a procedure that removes damaged portions of your knee in an attempt to regain the mobility and function of your joint. It is generally considered a highly effective treatment option, and most patients are able to participate in low-impact activities afterwards. Running, however, is usually prohibited, as it can cause further damage in your knee.
Definition
A knee replacement is a surgical procedure in which the bones that comprise your knee are replaced with an artificial implant. It is a common treatment option for patients who have a damaged knee joint that causes severe pain and immobility. Most often, this is the result of arthritis. If a patient's knee is severely damaged, he may be forced to have a replacement in order to be able regain a normal lifestyle.
Types of Knee Replacement
There are two types of knee replacement, partial and total. During partial replacement, also known as unicompartmental knee arthroplasty, either the inside or outside compartment of the knee is replaced. In total replacement, the entire joint is replaced. Because partial replacement only involves part of the knee, it is usually associated with a shorter rehabilitation and recovery time, as well as a possible greater range of motion.
Surgery Procedures
You will be put under anesthesia for your surgery. Once sedated, your surgeon will make an incision over your knee. He will then cut the end of both your femur (thighbone) and tibia (shinbone). This removes the damaged portion of your knee and creates a flat surface for the implant to be inserted. Once in place, the implant is secured and the incision is closed. The operation generally takes between one and a half to two hours.
Rehabilitation and Recovery
Rehabilitation for knee replacement begins almost immediately. Within the first day following the operation you should begin to walk with the assistance of a cane or walker. This will increase circulation and prevent swelling and blood clots. In time, you may have to undergo physical therapy to regain complete strength in your knee. Patients usually start walking without assistance after one or two weeks and resume other normal activities within six weeks.
Running
Once you are physically capable, you may begin to participate in physical activity. Exercise is recommended. However, you should stick to such low-impact activities as walking, swimming and bike riding. High-impact sports, such as running and jogging, are usually prohibited. Running can cause injuries in or near your joint. Since the implant in your knee is artificial, it is not able to heal any damage from injury naturally. Therefore, you must be careful not to injure your knee.
