NEW HAVEN, Conn.--(BUSINESS WIRE)--Applied Spine Technologies (“AST”) reported today that it has reached a clinical trial milestone related to its “motion preserving” Stabilimax NZ® Dynamic Spine Stabilization System: the randomized, controlled study recently enrolled its 100th patient. 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.