The Interspinous Spacer: A New Posterior Dynamic Stabilization Concept for Prevention of Adjacent Segment Disease
Figure 1
On the left, sagittal T2W image MRI of Lumbosacral spine showing extruded L5-S1 disc with degenerated L4-L5 disc. On the right, preoperative view of the same patient showing left L5-S1 laminotomy for disc excision and L4-L5 interspinous distractor.
