CARLSBAD, Calif., July 23, 2019 (GLOBE NEWSWIRE) — Alphatec Holdings, Inc. (“ATEC” or the “Company”) (Nasdaq: ATEC), a medical device company dedicated to revolutionizing the approach to spine surgery, announced today the commercial release of InVictus™, a comprehensive spinal fixation platform designed to address a range of pathologies through a minimally invasive (MIS), open, or …