Computational muscle driven knee simulator for assessment of total knee replacement post-cam mechanics

Mohd Afzan Mohd Anuar, Mitsugu Todo

    Research output: Contribution to journalArticlepeer-review


    Biomechanics of post-cam mechanism is essential in determining the longevity of knee implant. Computational knee simulator is an efficient method in characterizing TKA performance under various boundary conditions. The existing knee simulators, however, were actuated only by quadriceps translation and hip load to perform squatting motion. The present computational knee simulator was developed based on lower limb of Japanese female subject having body weight, W = 51 kg and height, H = 148 cm. Two different designs of PS-type knee prostheses were tested namely Superflex and NRG. The knee motion was driven by three major muscles; quadriceps, hamstrings and gastrocnemius. The biomechanical behavior of tibiofemoral articulation associated with post-cam engagement mechanics was observed. Post-cam engagement occurred at 80° and 65° of flexion angles for Superflex and NRG, respectively. Maximum von Mises stresses at tibial post were 80 MPa and 50 MPa for Superflex and NRG, respectively. The developed computational muscle driven knee simulator has successfully assessed the performance of TKA prostheses.

    Original languageEnglish
    Pages (from-to)165-168
    Number of pages4
    JournalInternational Journal of Engineering and Technology(UAE)
    Issue number4
    Publication statusPublished - 2018

    All Science Journal Classification (ASJC) codes

    • Biotechnology
    • Computer Science (miscellaneous)
    • Environmental Engineering
    • Chemical Engineering(all)
    • Engineering(all)
    • Hardware and Architecture


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