Short term results as regards relief of radicular or myelopathic symptoms comparable to those from ACDF
No evidence for H.O. of any evidence of spontaneous fusion in this series
Literature up to 9.1% spontaneous fusion
Heterotopic Ossification in Total Cervical Artificial Disc Replacement. Spine. 31(24):2802-2806, November 15, 2006.
Mehren, Christoph MD *; Suchomel, Petr MD, PhD +; Grochulla, Frank MD *; Barsa, Pavel MD +; Sourkova, Petra MD +; Hradil, Jan MD +; Korge, Andreas MD *; Mayer, H Michael MD, PhD *
COMPARED TO ACDF:
Wider Uncinate Resection
Spondylotic Ridge Resection
Retention of MOTION may lead to RECURRENCE of Spondylosis as compared to fusion.
Treatment of Radiculopathy with Disc Replacement
Early Results of a Randomized Controlled Clinical Trial Comparing Prodisc-C® and ACDF for Cervical Radiculopathy
Conclusion: Treatment of cervical radiculopathy with Prodisc-C® disc replacement and ACDF appears to be equally safe and efficacious at early follow-up. Early range of motion postoperatively appears superior in Prodisc-C® patients.
CSRS 2005 Eric B. Laxer, MD, Daniel B. Murrey, MD, Bruce V. Darden, MD, Alfred L. Rhyne, MD, Alden Milam, MD (Charlotte, NC), Michael E. Janssen, MD, Caroline M. Ponce, BS, Ruth Beckham, NP-C (Thornton, CO)
Artificial Disc versus Fusion for the Treatment of Cervical Radiculopathy: A Prospective, Randomized Study.
Conclusion: The Bryan artificial disc replacement compares very favorably to a conventional anterior cervical fusion for the treatment of patients with cervical radiculopathy.
CSRS 2005 Rick C. Sasso, MD, Robert Hacker, MD (Indianapolis, IN)
Proper Implant Sizing
Increases foraminal height
1mm overdistraction results in significantly less ROM over FSU