NEW HAVEN, Conn.--(BUSINESS WIRE)--Applied Spine Technologies (“AST”) announced today that it has appointed neurosurgeon Michael J. Giordano, MD, MBA, as its Chief Medical Officer, effective immediately. Dr. Giordano will oversee an ongoing, randomized, controlled, national clinical study of its “motion preserving” Stabilimax NZ® Dynamic Spine Stabilization System. The study is comparing posterior dynamic stabilization in patients using the Stabilimax NZ device to patients receiving traditional fusion surgery to treat their Lumbar Spinal Stenosis, a common lower-back disorder where deterioration of the joints and discs leads to increased pressure on the spinal nerves.