330 patients suffering from cervical degenerative disc disease (DDD) with radiculopathy or myeloradiculopathy at 2 contiguous levels from C-3 to C-7 were randomized to investigate the benefits of cervical total disc replacement (TDR) using the Mobi-C cervical device (LDR Spine) compared with conventional anterior cervical discectomy and fusion (ACDF). The evidence presented in this study indicated that TDR demonstrated statistical superiority over ACDF based on overall study success rates: both TDR and ACDF groups experienced significant improvements in Neck Disability Index (NDI) score, and VAS neck and arm pain at all time points; however TDR patients demonstrated significantly superior NDI scores at all time points compared to ACDF patients, along with significantly superior VAS neck pain at only 3 and 6 months. TDR group maintained preoperative segmental range of motion at both treated segments immediately postoperatively and throughout the study period. Finally, reoperations were significantly higher in the ACDF group compared to the TDR group.