Editorial on “Long-term clinical outcomes of cervical disc arthroplasty: a prospective, randomized, controlled trial” by Sasso et al.

In the paper entitled “Long-term clinical outcomes of cervical disc arthroplasty: a prospective, randomized, controlled trial”, Sasso et al. present seven and ten-year single center data from patients enrolled in the initial FDA Investigational Device Exemption trial of the BRYAN^® cervical arthroplasty device. The authors should be commended on the quality of their investigation, as prospective randomized trials with such long term followup are a rarity in spine surgery.