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Reviewed By: Brunilda Nazario,
SOURCES: Nucleus Medical Media Inc.
Copyright - All material ©1999 - 2010 Nucleus Medical Media Inc. All rights reserved.
Total Knee Replacement
During a total knee replacement, your surgeon will replace your knee joint with a prosthetic knee. Bones in the knee joint include the lower end of the femur, or thighbone, the tibia, or shinbone, and the patella, or kneecap. Smooth cartilage, called articular cartilage, covers the bony surfaces, cushioning the knee joint and allowing the parts to move easily. The most common cause of knee disability is osteoarthritis, which causes the articular cartilage to wear away, resulting in severe knee pain and stiffness. When pain medication and other treatments are no longer effective, your surgeon will perform a total knee replacement. During the procedure, your surgeon will remove the damaged cartilage and bone and reshape the bony surfaces to fit the prosthesis, or artificial joint. Your surgeon will cement up to three prosthetic components into place, including a metal femoral shell (pause), a metal and plastic tibial component , and a plastic patellar component. Before closing the incision, your surgeon will bend and rotate your knee to ensure it functions properly. Over 90% of patients experience dramatic pain relief and improved knee function (pause) and have a new joint that will last 10-20 years.
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