The Journal of Bone and Joint Surgery (American). 2008;90:85-89.
doi:10.2106/JBJS.H.00626
© 2008 The Journal of Bone and Joint Surgery, Inc.
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Normal, Fused, and Degenerative Cervical Spines: A Comparative Study of Three-Dimensional in Vivo Kinetics

Fei Liu, PhD1, Joseph S. Cheng, MD, MS1, Richard D. Komistek, PhD1 and Mohamed R. Mahfouz, PhD1

1 1910 Blanding Street, Columbia, SC, 29201. E-mail address for F. Liu: lf_david@hotmail.com

The first 150 words of the full text of this article appear below.


   Introduction
 
With a complex system of intervertebral discs and adjoining ligaments and muscles, the cervical spine provides support and stability to the head, transfers the weight of the head to the trunk, and allows for complex physiological motions. The technique of anterior cervical discectomy decompression and fusion has been successfully used in the treatment of the degenerative cervical spine for decades1-3. However, it has been reported that 2.9% of fused cervical spines per year will require revision surgery at adjacent levels for the treatment of progressive spondylosis and that 25.6% of patients who undergo anterior cervical discectomy decompression and fusion will have new disease at an adjacent level within the first ten years after surgical treatment4. Also, prior in vitro studies have reported greater motions and increased load and intradiscal pressures along with a higher prevalence of degeneration at the segments adjacent to the level of the initial anterior . . . [Full Text of this Article]


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