2-YEAR RESULTS OF NUBAC™ DISC ARTHROPLASTY SYSTEM IMPLANTED FOR THE TREATMENT OF LUMBAR DİSC HERNIATION Journal title: Journal of Turkish Spinal Surgery Authors: Erkin SONMEZ, Fikret ŞAHINTÜRK, Ümit Akın DERE, Cem YILMAZ, Salih GÜLŞEN, Nur ALTINORS Subject(s): Medicine, Surgery