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What is a full knee replacement?

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A full knee replacement, formally known as a knee arthroplasty, is a surgical procedure performed to replace a severely diseased or damaged knee joint with an artificial joint, according to MedicineNet. The procedure is used to relieve pain and restore functionality to the knee.

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What is a full knee replacement?
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MedicineNet states that full knee replacement surgery is usually recommended for people whose knee joints have suffered damage through trauma, arthritis or a degenerative disease such as osteoarthritis. According to the Mayo Clinic, the procedure involves a skilled surgeon removing diseased and damaged bone and cartilage from the thighbone, shinbone and kneecap and installing a new artificial joint that is usually made from alloys, plastics and polymers.

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  • Q:

    What do knee replacements look like?

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    An artificial joint for full knee replacements typically has a curved metal component shaped like the lower end of the femur, states the American Academy of Orthopaedic Surgeons. The femoral component is also grooved along the center to enable kneecap motion. A dome-like component covers the back of the kneecap, or patella, and is fitted to its shape. A flat metal component with a plastic upper lining covers the top of the tibia bone and may include a protruding stem.

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  • Q:

    What happens during knee arthroplasty?

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    During a knee arthroplasty, or knee replacement surgery, the surgeon cuts away damaged cartilage and bone from the knee and leg, according to the Mayo Clinic. The surgeon then replaces it with an artificial joint. Modern artificial joints attempt to mimic the natural movement of the knee.

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  • Q:

    How is a knee arthroplasty procedure performed?

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    To perform a knee arthroplasty, orthopaedic surgeons remove cartilage surrounding the tibia and femur, according to the American Academy of Orthopaedic Surgeons. Metal inserts fill in the empty spaces created after removing the cartilage. Surgeons resurface the knee cap if necessary and add a plastic spacer between the metal inserts.

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  • Q:

    What is a joint effusion of the knee?

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    A knee effusion, more commonly called water on the knee, occurs when excess fluid accumulates around the knee joint, according to Medical News Today. This swelling has several causes including arthritis, injury to ligaments and fluid in the bursa. Symptoms of knee effusion include pain when bearing weight, appearance of one knee larger than the other, difficulty straightening the joint and bruising.

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