The Mobi-C cervical disc represents a metal on polyethylene device. It consists of two metal endplates with a UHMWPE (polyethylene) mobile core that can move within the lower endplate.

The Mobi-C represents the first second-generation cervical disc replacement with patented Mobile Core Technology. This disc includes a mobile core that is designed to self-adjust to match spinal movements and allow a natural range of motion.


Mobi-C was the first cervical disc replacement approved for both one-level3 and two-level4 cervical disc replacement. The FDA-IDE study of the implant demonstrated at least equivalent clinical results to ACDF for one-level disc replacement; and for two-level cervical disc replacement, the FDA-IDE study demonstrated clinical results superior to ACDF.5,6


The Mobi-C artificial cervical disc received approval from the FDA in August 2013.


  1. Mobi-C Cervical Disc Prosthesis – P110002. U.S. Food and Drug Administration website. Accessed April 2015.
  2. Mobi-C Cervical Disc Prosthesis (two-level) - P110009. U.S. Food and Drug Administration website. Accessed April 2015.
  3. Davis RJ, Nunley PD, Kim KD, Hisey MS, Jackson RJ, Bae HW, et al. Two-level total disc replacement with Mobi-C cervical artificial disc versus anterior discectomy and fusion: a prospective, randomized, controlled multicenter clinical trial with 4-year follow-up results. J Neurosurg Spine. 2015; Jan 22(1):15-25.
  4. Hisey MS, Bae HW, Davis R, Gaede S, Hoffman G, Kim K, et al. Prospective, Randomized Comparison of Cervical Total Disc Replacement versus Anterior Cervical Fusion: Results at 48 Months Follow-up. Journal of spinal disorders & techniques. 2015; 28(4): 237-243.