Mobi-C® Cervical Disc

Only FDA Approved Cervical Disc for One & Two Levels

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Mobi-C History

The Mobi-C cervical disc is one of the most widely used cervical discs in the world. First implanted in Orleans, France in November 2004, Mobi-C has been implanted in more than 17,000 spinal levels in 25 countries.

A total of 599 patients were involved in the Mobi-C U.S. clinical trial, which represents the largest concurrent clinical trial ever conducted for cervical disc replacement. Mobi-C received FDA approval in August of 2013, making it the first cervical disc with both one and two-level indications.

Mobi-C Patient Success Story: Today, Bill is back to running with the Mobi-C

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Dr. Regan performed a cervical artificial disc replacement surgery to relieve pain & allow him to retain neck mobility. Click here to read about John's successful return to active lifestyle without pain after Dr. John Regan performed the Mobi-C artificial disc replacement.

Mobi-C – How it Works

Mobi-C contains patented Mobile Core Technology™ that allows the polyethylene core to slide and rotate inside the disc for self-adjustment to the cervical spine movements. This means that Mobi-C can react to the normal motion in the cervical spine.

Mobi-C provides bone sparing fixation without chisel cuts into the small vertebral bodies of the cervical spine, making it safe for implantation at two levels.

Mobi-C – Clinical Trial Results

In the one-level study, Mobi-C demonstrated non-inferiority to ACDF as reflected in the primary composite endpoint. In the two-level study Mobi-C demonstrated SUPERIORITY to ACDF in the primary composite endpoint. Key results from the two-level study include:

Overall trial success was 69.7% for Mobi-C and 37.4% for fusion, which represents statistical superiority (p< 0.0001).

The rate of secondary surgeries at the operated level for Mobi-C was 3.1% versus 11.4% for fusion.

The percentage of subjects who demonstrated adjacent segment degeneration (determined by x-ray) was:

  • 2.9% of Mobi-C patients compared to 18.1% of ACDF patients at the inferior adjacent level
  • 13.1% of Mobi-C patients compared to 33.3% of ACDF patients at the superior adjacent level
  • Mean return to work time was 20.9 days shorter for Mobi-C patients compared to fusion patients.
  • 78.2% of Mobi-C patients showed improvement in Neck Disability Index (NDI) based on the FDA success criteria versus 61.8% of fusion patients.

For indications and detailed clinical results, see the Mobi-C Summary of Safety and Effectiveness document (SSED) available online at or, or visit

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