BELGRADE, Mont., May 12, 2016 (GLOBE NEWSWIRE) — Xtant Medical Holdings, Inc. (NYSE MKT:XTNT), a leader in the development of regenerative medicine products and medical devices, today announced FDA clearance for the posterior cervical screw indication on the Certex® Spinal Fixation System. The cleared indication for the posterior cervical screw expands the use of the […]