Knee joint replacement is surgery to replace a knee joint with an artificial joint. The artificial joint is called a
Alternative Names
Total knee replacement; Knee arthroplasty; Knee replacement - total; Tricompartmental knee replacement
Description
You may receive general
After you receive anesthesia, your surgeon will make an incision (cut) over your knee to open it up. Then your surgeon will:
- Move your kneecap (patella) out of the way, then shape the ends of your thigh bone and shin bone to fit the prosthesis. Your surgeon will also cut the underside of your kneecap to prepare it for the artificial pieces that will be attached there.
- Fasten the two parts of the prosthesis to your bones. One part will be attached to the end of your thigh bone and the other part will be attached to your shin bone. Both parts will then be attached to the underside of your kneecap. Your surgeon will use a special bone cement to attach these parts.
Usually, artificial knees have metal parts. Now, though, some surgeons are using some different materials, including metal on metal, ceramic on ceramic, or ceramic on plastic.
Why the Procedure Is Performed
Knee joint replacement may be recommended for:
- Severe arthritis (osteoarthritis or rheumatoid arthritis) of the knee that has not gotten better with medicine, injections, and physical therapy after 6 months or more of treatment. Your doctor may recommend knee replacement for these problems:
- Inability to sleep through the night because of knee pain
- Knee pain that has not improved with other treatment
- Knee pain that limits or keeps you from being able to do your normal activities, especially your daily activities such as bathing, preparing meals, household chores, and other things.
- Some tumors that affect the knee
