The Mobi-C® Cervical Disc is the first and only neck surgery prosthesis approved for reconstruction of the disc(s) from C3-C7 following discectomy at one or two contiguous levels. The insertion of the Mobi-C restores the space between the vertebrae and allows for natural movement as compared to anterior cervical discectomy and fusion (ACDF). This procedure is for arm pain and/or neurological deficit with or without neck pain due to an abnormality in the disc space. It is indicated for the condition when confirmed by X-ray, MRI and/or CT scans for patients with a herniated disc, spondylosis and/or visible loss of disc height.