Knee replacement, X-ray

Knee replacement. Coloured X-ray of theprosthetic knee (dark red), seen in profile, of apatient with osteoarthritis. The implant attachesto the leg bones, and has a flexible joint thatcan hinge like the old joint. The implant isattached to the top of the tibia (shin bone, lowerframe, green) and to the bottom of the femur(thigh bone, upper frame, red). The patella(kneecap, red, left of implant) and a lower legbone (fibula, green) are also seen (right oftibia). The implant replaced the old joint thathad lost its cartilage due to osteoarthritis.Healthy cartilage reduces friction between thebones, and its progressive loss causes joint painand immobility.. Stunning Photo Gifts From Science Photo Library

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