Total knee replacement (also called knee arthroplasty) is a common orthopaedic procedure that is used to replace the damaged or worn surfaces of the knee. Replacing these surfaces with an implant or "prosthesis" will relieve pain and increase mobility, allowing you to return to your normal, everyday activities.

Knee and hip replacements are two of the most commonly performed elective operations. For the majority of patients, joint replacement surgery relieves pain and helps them to live fuller, more active lives.

Osteoarthritis (OA) is a common disorder caused by a loss of cartilage that affects the joints.

Computers have been assisting surgeons in the operating room since the 1980s. Today approximately 7% of all joint replacement surgeries are completed with the aid of computer navigation technology. Similar to the GPS in your car, these devices guide surgeons to precisely position the components of a hip or knee replacement. These tools can help surgeons decide what thickness of bone to remove and how to improve limb alignment. In theory, a well-balanced and properly aligned joint replacement should, like your new car tires, last longer if in acceptable alignment. The number of joint replacements done with this technology may grow over the next decade as it continues to improve.

Choosing the right surgeon to perform your joint replacement is important, and it can be a daunting task. There are several ways to find a surgeon who is right for you. A personal referral from your primary care doctor or friends and family that have experience with joint replacement are a few possibilities. Another form of referral would be through your medical insurance provider who may list preferred surgeons in their network. A third and powerful referral tool is the Internet.

A joint replacement can relieve pain and help you live a fuller, more active life.

After orthopaedic surgery, your doctors and nurses will make every effort to control your pain. While you should expect to feel some discomfort, advancements in pain control now make it easier for your doctor to manage and relieve pain.

Belt buckles, key chains and smartphones may set off sensitive metal detectors at airport security checkpoints. Many commonly used orthopaedic implants may also set off the metal detectors.

During a dental procedure, it is possible for bacteria from the mouth, teeth or gums to travel through the bloodstream and settle in an artificial joint.

If you are allergic or sensitive to metal, then it is important to alert your surgeon prior to having joint replacement surgery. The most common metal allergy is nickel, which is found in very small quantities in knee implants and in some hip implants. While up to 14% of people will have some reaction to certain metal allergy tests, metal allergy is a very rare cause of failure in knee replacements.