Artificial spinal prosthesis

TL;DR: In this article, a spine distraction implant alleviates pain associated with spinal stenosis and facet arthropathy by expanding the volume in the spine canal and/or neural foramen.

TL;DR: A guarded sleeve system for use in human spinal surgery across the height of a disc space between two adjacent vertebral bodies is described in this paper, where an outer sleeve having an opening for providing protected access to the disc space and at least portions of the adjacent vertebras.

TL;DR: In this paper, a structural configuration of interbody spinal fusion implant (100) is proposed for the maintaining and creating of the normal anatomic angular relationship of two adjacent vertebrae (V2, V3) of the spine to maintain and create spinal lordosis.

TL;DR: In this paper, a spinal plate system and method for fixation of the human spine is described, which includes a bone plate, a bone screw and a ring, and the bone screw can be angulated at a plurality of angles oblique to the bone plate.

TL;DR: An artificial disc for a human spine has been proposed in this paper with upper and lower members hinged together at their rear portions and biased apart at their fronts by stiff coil springs.

TL;DR: In this article, an artificial intervertebral disc for implantation in the disc space after the removal of a diseased or damaged cervical interverstebral is described and comprises upper and lower disc portions having a plurality of springs positioned therebetween to yieldably urge the disc portions away from each other.

TL;DR: In this paper, the authors implanted two prosthetic disc capsules side-by-side into a damaged disc of a human spine, both height and motion, including front-to-back bending, can be maintained.

TL;DR: A synthetic intervertebral disc prosthesis as discussed by the authors is a non-porous, non-porous, rubber or silicone-rubber compound in two halves, each half having a hollow interior.