DENTON, Texas--(BUSINESS WIRE)--William D. Bradley M.D., a board-certified orthopedic surgeon at Texas Back Institute, is the first physician in Texas to implant the Stabilimax NZ® Dynamic Spine Stabilization System as part of a randomized, controlled, national research study. The research 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. Dr. Bradley’s first patient was 74-year-old maintenance engineer Vernon Bittmann of Wichita Falls, Tex.