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The Effect of Carbon Fiber Reinforcement on Contact Area, Contact Pressure, and Time-dependent Deformation in Polyethylene Tibial Components by T. M. Wright; T. Fukubayashi; A. H. Burstein is a Medicine article available to read on EtoBox.

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## Abstract To study the mechanical behavior of a commercially available UHMWPE reinforced with carbon fibers, measurements of contact area, contact pressure and time‐dependent deformation were made on tibial components from a contemporary total knee replacement loaded to physiological levels. For comparison, similar measurements were performed on identical components manufactured from plain UHMWPE. Contact area and pressure results reflected the increased stiffness of the carbon‐UHMWPE material, with smaller contact areas and generally higher contact pressures versus the plain UHMWPE at the same load. Stresses in both materials under the contact area approached or exceeded the yield stresses for the materials when the physiological load was high or the radius of the femoral component indenter decreased (similar to flexion of the knee). Time‐dependent deformation over a 24 h period was reduced significantly in the carbon‐UHMWPE components for a high physiological load.

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Author

T. M. Wright; T. Fukubayashi; A. H. Burstein

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Heterocorporation; Wiley (ISSN 0021-9304)

Published

1981

Language

EN

Field

Medicine (Health Sciences)