NEW YORK, April 14, 2020 /PRNewswire/ — Centinel Spine®, LLC, the largest privately-held spine company focused on anterior column reconstruction, today announced FDA approval of two-level indications for the prodisc® L Lumbar Total Disc Replacement (TDR) system. Centinel Spine now becomes the only company in the world with an FDA-approved lumbar TDR device that has been clinically reviewed and …