Calculation of wear (f.i. wear modulus) in the plastic cup of a hip joint prosthesis

D.J. Ligterink

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    Abstract

    The wear equation is applied to the wear process in a hip joint prosthesis and a wear modulus is defined. The sliding distance, wear modulus, wear volume, wear area, contact angle and the maximum normal stress were calculated and the theoretical calculations applied to test results. During the wear process the increase of the wear modulus is about 100 Nmm−2 per mm sliding distance in the Charnley and the Charnley-Muller hip joint prosthesis. From the wear volume point of view the Charnley prosthesis is probably superior to the Charnley-Muller prosthesis if run-in before implantation.
    Original languageUndefined
    Pages (from-to)113-121
    JournalWear
    Volume35
    Issue number1
    DOIs
    Publication statusPublished - 1975

    Keywords

    • IR-68035

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