The motions and loads experienced by the human spine are complex and have been the subject of much study over the years. The emerging field of intervertebral disc arthroplasty offers products that must function within this complex loading environment over long periods of time. So called “first generation” intervertebral disc designs accomplish this through one or more articulating surfaces. Second generation artificial discs attempt to mimic the multi-axial disc motion and stiffness exhibited by the natural human disc. The eDisc not only provides this type of viscoelastic motion, but also provides the first capability to sense loads and motions to improve patient outcomes.

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