Beckmann-Adson Laminectomy RetractorDDP Elite USA Beckmann Adson Laminectomy Retractor is a specialized instrument made for use in neurosurgical procedures, specifically those pertaining to the spine. This retractor has a long and slim design and features hinged arms from which 4x4 prongs extend. During laminectomy these prongs can be used to retract soft tissue and muscle layers form directly above the vertebral lamina and the ratcheting mechanism can hold the soft tissue out of way.