CARLSBAD, Calif., Jan. 13, 2020 (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 preliminary revenue results for the fourth quarter and full year ended December 31, 2019, and provided revenue guidance for the full year 2020. Preliminary, …