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    Static and Dynamic Spinal Implants: Are We Evaluating Them Appropriately?

    Jensen Laura, Spenciner David, Graham Jove, Anderson Paul
    Published: 2012

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    Twenty peer-reviewed papers provide the latest research on spinal implants. Sections cover:

    Interbody Fusion Devices—examines several test parameters used in the evaluation of interbody spacers and other fusion devices (ASTM F2077). Papers cover variations in the fixture design, bone analog material, and mode of testing are presented.

    Disc and Nucleus Devices—covers the frequency dependence of polymeric core discs, sensitivity of wear and impingement tests to input parameters, and a ground-breaking comparison of human in vivo ranges of motion to the parameters outlined in ASTM F2423.

    In vitro Testing Methods—discusses mechanically tested spinal devices using human spinal segments as the test medium and development of a more physiological loading protocol.

    Longitudinal Systems—emphasizes the importance of ASTM F1717 Test Method for Spinal Constructs in a Vertebrectomy Model.

    Significance and Future Work—covers the latest testing technology, including precision and bias methods, impingement of motion preserving technologies, subsidence of interbody fusion devices, evaluation of annular repair, and combination cage/screw devices.

    Committee: F04

    DOI: 10.1520/STP1535-EB

    ISBN-EB: 978-0-8031-9418-2

    ISBN-13: 978-0-8031-7521-1