CARLSBAD, Calif., Dec. 30, 2019 (GLOBE NEWSWIRE) — SeaSpine Holdings Corporation (NASDAQ: SPNE), a global medical technology company focused on surgical solutions for the treatment of spinal disorders, today announced the full commercial launch of the Mariner® Midline Posterior Fixation System. Mariner Midline is a comprehensive, less invasive posterior fixation system built upon the Mariner …