Scoville Hemilaminectomy RetractorDDP Elite USA Scoville Hemilaminectomy Retractor is ideally suited for use in retraction of the soft tissue and other muscular layer that lie directly over the spine. This retractor is used in hemilaminectomy procedures that require removal of half of the vertebral arch and thus aids in uncovering the bony are involved in surgery. The maximum spread of this instrument is 120 mm. It is available as the frame only without the blades or complete with one