Spinal Implant Development, Modeling, and Testing to Achieve Customizable and Nonlinear Stiffness
作者： L.L. Dodgen , E. , Stratton , E. , Bowden
DOI: 10.1115/1.4006543
关键词: Nonlinear stiffness 、 Implant 、 Tensile testing 、 Nonlinear system 、 Finite element method 、 Structural engineering 、 Deflection (engineering) 、 Stiffness 、 Engineering 、 Biomedical engineering 、 Cadaveric spasm
摘要: The spine naturally has a nonlinear force-deflection characteristic which facilitates passive stability, and thus there is a need for spinal implants that duplicate this behavior to provide stabilization when the spine loses stiffness through injury, degeneration, or surgery. Additionally, due to the complexity and variability in the mechanics of spinal dysfunction, implants could potentially benefit from incorporating a customizable stiffness into their design. This paper presents a spinal implant with contact-aided inserts that provide a …
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