Patent ID: 8663295

Claim:
A posterior spinal prosthesis for mounting to a first spinal fixation device and a second spinal fixation device mounted on a plurality of vertebrae, the posterior spinal prosthesis comprising: a plate extending between first and second posterior lateral sides of the plurality of vertebrae, the plate located at a first height; a first flange extending from a first lateral side of the plate and substantially co-planar to the plate at a second height that is offset lower in an anterior direction than the first height, the first flange having a first recess extending in a longitudinal direction on an underside of the first flange and sized to at least partially receive the first spinal fixation device, the first flange having a first elongated slot extending through the first flange between the first recess and an upper-side of the first flange; a first plurality of connector caps that engage the upper-side of the first flange and extend through the first slot to couple the first flange to the first fixation device; a second flange extending from a second lateral side of the plate and substantially co-planar to the plate at the second height, the second flange having a second recess extending in a longitudinal direction on an underside of the second flange and sized to at least partially receive the first spinal fixation device, the second flange having a second elongated slot extending through the first flange between the second recess and an upper-side of the second flange; a second plurality of connector caps that engage the upper-side of the second flange and extend through the second slot to couple the second flange to the second fixation device.