CARLSBAD, Calif., May 09, 2019 (GLOBE NEWSWIRE) — Alphatec Holdings, Inc. (“ATEC” or the “Company”) (Nasdaq: ATEC), a provider of innovative spine surgery solutions dedicated to revolutionizing the approach to spine surgery, today announced financial results for the quarter ended March 31, 2019, and recent corporate highlights. First Quarter 2019 Financial Highlights Total net revenue …