Importance

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Abstract

An intervertebral disc for a prosthetic intervertebral disc system for insertion from a posterior of the spine includes first and second end plates sized and shaped to fit within an intervertebral space, each end plate having a vertebral contacting surface and an inner surface, a first bearing surface on an inner surface of the first end plate, and a second bearing surface on an inner surface of the second end plate. A mobile core is configured to be received between the first and second bearing surfaces, the first and second end plates being articulable and rotatable relative to each other via sliding motion of at least one of the first and second bearing surfaces over the core. The core is movable with respect to at least one of the first and second end plates.

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First Claim