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Knee Replacement

Just What Your Knee May Need

Nearly half of U.S. adults will develop some degree of knee arthritis in their lifetime. Knee arthritis gets in the way of many everyday activities, from riding a bike, to climbing stairs, or even walking around the block. Left untreated, knee issues can cause chronic pain and disability. Not surprisingly, knee surgery is the most common form of joint replacement in the United States.

The orthopedic surgeons at Community Memorial Healthcare always look to minimally invasive options first, such as medication, orthotics, injections, and arthroscopic knee surgery. However, if you continue to experience chronic, debilitating knee pain, knee replacement may be your best option.

Anatomy of the Knee

Your body’s largest and strongest joint, the knee consists of three parts:

  • The lower end of the femur (thighbone)
  • The upper end of the tibia (shinbone)
  • The patella (kneecap)

At the knee joint, the ends of these bones are covered with articular cartilage that protects and cushions the bones when you move your knee.

Two tough, wedge-shaped pieces of cartilage (meniscus) help cushion and stabilize the joint and act as “shock absorbers” when you walk.

The knee joint is surrounded by the synovial membrane, which releases synovial fluid to lubricates the cartilage.

Knee Replacement Surgery

During knee replacement surgery, your surgeon removes damaged cartilage and bone and replaces them with man-made prostheses secured by specially formulated bone cement. Depending on which areas of the knee are damaged, prostheses may be placed in the femur, tibia, and/or patella.

Robotic-assisted Knee Replacement with the ROSA® Joint System

ROSA is short for “Robotic Surgical Assistant” and that’s exactly what the robot does — assist surgeons in planning, personalizing, and performing knee and hip replacements for exceptional accuracy and efficiency.

Partial Knee Replacement

If only certain areas of cartilage are damaged, it may be possible to perform a partial knee replacement, in which only the affected portions of the knee are replaced. Compared to total knee replacement, partial knee replacement usually causes less blood loss and postsurgical pain, and a faster recovery. Because the healthy parts of the knee are not removed, a partial knee replacement may bend better and feel “more natural.”