Strength of the cement-bone interface relies more on interface contact than cement penetration depth

D. Waanders, D. Janssen, K.A. Mann, N. Verdonschot

    Research output: Contribution to conferencePosterAcademic

    10 Downloads (Pure)

    Abstract

    In cemented total hip arthroplasty, the implant needs a mechanically stable cement-bone interface for its survival. This can be achieved by adequate cement penetration into the bone lacunar and trabecular spaces.
    Many studies have been conducted to investigate the strength of the cement-bone interface in relation to the amount of cement penetration, but mainly on a macro-scale [1]. However, to gain a more detailed insight into the mechanical aspects of this geometrically complex interface, the cement-bone interface should be studied on a micro-scale. We developed micro Finite Element (FE) models of the cement-bone interface and varied the cement penetration depth. Subsequently, we loaded the FE models until failure and asked the following questions: (1) Is there a relationship between penetration depth, contact area and strength?; (2) Is the interface stronger in shear than in tension?; (3) How valid are the FE models compared to experimental findings?
    Original languageEnglish
    Pages2131-2131
    Publication statusPublished - 6 Mar 2010
    Event56th Annual Meeting of the Orthopaedic Research Society : Proceedings of the 56th Annual Meeting of the Orthopaedic Research Society - New Orleans, LA
    Duration: 6 Mar 20109 Mar 2010

    Conference

    Conference56th Annual Meeting of the Orthopaedic Research Society
    CityNew Orleans, LA
    Period6/03/109/03/10

    Keywords

    • METIS-268910
    • Bone
    • Finite element analysis
    • Implant fixation
    • Mechanics

    Fingerprint Dive into the research topics of 'Strength of the cement-bone interface relies more on interface contact than cement penetration depth'. Together they form a unique fingerprint.

    Cite this