1. A Meta-Analysis Comparing the Results of Cervical Disc Arthroplasty with Anterior Cervical Discectomy and Fusion (ACDF) for the Treatment of Symptomatic Cervical Disc Disease by Yu Gao, Ming Liu, Tao Li, Fuguo Huang, Tingting Tang, and Zhou Xiang J Bone Joint Surg Am Volume 95(6):555-561 March 20, 2013 ©2013 by The Journal of Bone and Joint Surgery, Inc.

2. Comparison of operative time between the arthroplasty group and the anterior cervical discectomy and fusion (ACDF, “control”) group. Yu Gao et al. J Bone Joint Surg Am 2013;95:555-561 ©2013 by The Journal of Bone and Joint Surgery, Inc.

3. Comparison of blood loss between the arthroplasty (“experimental”) group and the anterior cervical discectomy and fusion (ACDF, “control”) group. Yu Gao et al. J Bone Joint Surg Am 2013;95:555-561 ©2013 by The Journal of Bone and Joint Surgery, Inc.

4. Comparison of visual analog scale (VAS) neck (top) and arm (bottom) pain scores between the arthroplasty (“experimental”) group and the anterior cervical discectomy and fusion (ACDF, “control”) group. Yu Gao et al. J Bone Joint Surg Am 2013;95:555-561 ©2013 by The Journal of Bone and Joint Surgery, Inc.

5. Comparison of neurological success between the arthroplasty (“experimental”) group and the anterior cervical discectomy and fusion (ACDF, “control”) group. Yu Gao et al. J Bone Joint Surg Am 2013;95:555-561 ©2013 by The Journal of Bone and Joint Surgery, Inc.

6. Comparison of motion at the operated level between the arthroplasty (“experimental”) group and the anterior cervical discectomy and fusion (ACDF, “control”) group. Yu Gao et al. J Bone Joint Surg Am 2013;95:555-561 ©2013 by The Journal of Bone and Joint Surgery, Inc.

7. Comparison of secondary surgical procedures between the arthroplasty (“experimental”) group and the anterior cervical discectomy and fusion (ACDF, “control”) group. Yu Gao et al. J Bone Joint Surg Am 2013;95:555-561 ©2013 by The Journal of Bone and Joint Surgery, Inc.