Knee replacement is a treatment option for patients with chronic knee pain and decreased mobility as a result of arthritis in the joint. Most often, it is a highly effective procedure and patients are able to live a healthy and active life, including participating in low-impact physical activities. However, high-impact sports such as are usually prohibited following a knee replacement.
Definition
Knee replacement is a procedure in which the bones that compose your knee joint are removed and replaced with an artificial implant. It is usually done if you suffer from chronic arthritis, which has severely damaged your knee, causing pain and immobility. There are two types of knee replacement: total and partial. Total knee replacement involves replacing your entire knee joint, while partial replacement involves removing only the inside or outside compartments of your knee.
The Procedure
The operation begins after you have been given an anesthetic. Your surgeon will then make an incision about 8 to 10 inches long over your knee. Your thighbone and shinbone are cut flat to remove the damaged portion of the bones and allow room for the implant. The artificial joint is then inserted and secured, and the incision is closed. Depending on the type of replacement done, the surgery usually lasts about an hour and a half to two hours.
Recovery
You will have to stay in the hospital for at least a day or two following the operation. During this time, you should start to put weight on your leg immediately. You can walk around with the assistance of a cane, walker or crutches. Even while sitting, you should move your foot and ankle in order to prevent swelling and blood clots. You will most likely need to undergo physical therapy in order to regain strength and mobility in your knee.
Running
Once you have recovered from your knee replacement, you will be able to participate in low-impact activities. This includes walking, swimming, golf and bike riding. Anything that does not put excessive strain on your knee should be alright. However, high-impact activities such as running or jogging are usually prohibited. These activities put too much pressure on your knee and can cause damage. You should ask your doctor about which activities are suitable for you and what your physical limitations are.
Prognosis
Following knee replacement, you will be able to gradually resume normal activities. Walking without assistance generally occurs after a week or two, and other activities within four to six weeks.
Knee replacement is considered a highly effective treatment option. Most patients experience significant pain relief and increased mobility.
