Patent ID: 7377942

Claim:
A prosthetic device for interposition in a space left by one or more excised vertebral posterior structures, the prosthetic device comprising: a lamina bridge connectable to a first vertebra for replacing an excised lamina of the first vertebra wherein the lamina bridge has an inferior portion and comprises a spinous process prosthesis extending dorsally from the lamina bridge; at least one inferior facet replacement device, connected to the inferior portion of the lamina bridge; a flexible bumper connectable to the lamina bridge via a center aperture of the flexible bumper, the center aperture configured to receive the spinous process prosthesis therein, the flexible bumper having a first end having a notch disposed therein for receiving and moveably connecting with a spinous process of a second vertebra and a second end opposite the first end, the second end having a notch disposed therein for receiving and moveably connecting with a spinous process of a third vertebra, wherein the second and third vertebrae are adjacent the first vertebra; and at least one superior facet replacement device, wherein the at least one superior facet replacement device articulates with the at least one inferior facet replacement device, and wherein a portion of one of the at least one inferior facet replacement device and the at least one superior facet replacement device comprises a majority of a sphere.