Spinal implant device with fusion cage and fixation plates and method of implanting

摘要

There is provided a spinal implant device for placement between adjacent spinous processes and a pair of opposing facet joints. The spinal implant device includes a fusion cage, first and second fixation plates and a connector for connecting the cage to the plates. The fusion cage includes a superficial face, a deep face, superior and inferior saddle portions, and opposing cage ends. Each cage end defining a facet fusion surface sized and configured to respectively contact the opposing facet joints. The first and second fixation plate are sized and configured to extend along and in contact with the adjacent spinous processes. A method of implanting the device is provided. In another embodiment the device includes the fusion cage.

主权项

1. A method of implanting a spinal implant device for placement between adjacent spinous processes and adjacent a thecal sac, the spinous processes including a superior spinous process extending to a superior spinolaminar junction and an inferior spinous process extending to the inferior spinolaminar junction, the spinous processes disposed about a pair of opposing facet joints, the method comprising:
a) removing a portion of the superior spinolaminar junction; b) removing a portion of each of the facet joints; c) providing the spinal implant device including a fusion cage, first and second fixation plates and a connector extending between the fusion cage and the first and second fusion plates, the fusion cage having a superior saddle portion, an inferior saddle portion and opposing cage ends; d) positioning the fusion cage between the spinous processes with the superior saddle portion being received in the superior spinolaminar junction where the portion of the superior spinolaminar junction having been removed, the inferior saddle portion receiving the inferior spinolaminar junction, and opposing cage ends respectively contacting the opposing facet joints adjacent to where the portion of each of the facet joints having been removed; and e) attaching the first and second fixation plates to the adjacent spinous processes with the spinous processes disposed between the fixation plates.