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What are the components of a knee implant in a total knee replacement?

April 26, 2017components Implant knee replacement total

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What are the components of a knee implant in a total knee replacement?

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The three components of knee implants are: 1. The tibial component has two elements and replaces the top of the shin bone (tibia). This prosthesis is made up of a metal tray attached directly to the bone and a plastic spacer that provides the bearing surface. 2. The femoral component replaces the bottom of the thigh bone (femur). This component also replaces the groove where the patella (kneecap) sits. 3. The patellar component replaces the surface of the knee cap, which rubs against the femur. The kneecap protects the joint, and the resurfaced patellar button slides smoothly on the front of the joint. This may or may not be replaced depending on the condition of the patient.