A method of implanting a spinal implant device. The method includes removing a portion of a superior spinolaminar junction and an inferior spinolaminar junction. The method includes removing a portion of each facet joint. The method includes providing the spinal implant device including a fusion cage having a superior saddle portion, an inferior saddle portion and opposing cage ends. The method includes positioning the fusion cage between spinous processes with the superior saddle portion receiving 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.