Current Concepts Review   |    
Cervical Intervertebral Disc Replacement
Garrick W. Cason, MD1; Harry N. Herkowitz, MD2
1 University of Tennessee College of Medicine, Chattanooga, 7892 Giorgio Circle, Ooltewah, TN 37363. E-mail address: gwcason@gmail.com
2 Department of Orthopaedic Surgery, William Beaumont Hospital, Medical Office Building 3535, West Thirteen Mile Road, Suite 744, Royal Oak, MI 48073. E-mail address: HHerkowitz@beaumont.edu
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Investigation performed at the Department of Orthopaedic Surgery, William Beaumont Hospital, Royal Oak, Michigan

Disclosure: None of the authors received payments or services, either directly or indirectly (i.e., via his or her institution), from a third party in support of any aspect of this work. One or more of the authors, or his or her institution, has had a financial relationship, in the thirty-six months prior to submission of this work, with an entity in the biomedical arena that could be perceived to influence or have the potential to influence what is written in this work. No author has had any other relationships, or has engaged in any other activities, that could be perceived to influence or have the potential to influence what is written in this work. The complete Disclosures of Potential Conflicts of Interest submitted by authors are always provided with the online version of the article.

Copyright © 2013 by The Journal of Bone and Joint Surgery, Inc.
J Bone Joint Surg Am, 2013 Feb 06;95(3):279-285. doi: 10.2106/JBJS.J.01042
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Symptomatic adjacent-level disease after cervical fusion has led to the development and testing of several disc-replacement prostheses.

Randomized controlled trials of cervical disc replacement (CDR) compared with anterior cervical discectomy and fusion (ACDF) have demonstrated at least equivalent clinical results for CDR with similar or lower complication rates.

Biomechanical, kinematic, and radiographic studies of CDR reveal that the surgical level and adjacent vertebral level motion and center of rotation more closely mimic the native state.

Lower intradiscal pressures adjacent to CDR may help decrease the incidence of adjacent spinal-level disease, but long-term follow-up is necessary to evaluate this theory.

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    These activities have been planned and implemented in accordance with the Essential Areas and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint sponsorship of the American Academy of Orthopaedic Surgeons and The Journal of Bone and Joint Surgery, Inc. The American Academy of Orthopaedic Surgeons is accredited by the ACCME to provide continuing medical education for physicians.
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