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Biomechanics of Cervical Spine Internal Fixation

MONTESANO, PASQUALE X., MD*; JUACH, EDWARD C., MS; ANDERSON, PAUL A., MD‡;; BENSON, DANIEL R., MD*; HANSON, PETER B., MD*

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Recent advances in the area of cervical spine internal fixation have resulted in important additions to the armamentarium of the spine surgery. However, a sophisticated knowledge of the biomechanics of these devices is important. This article discusses the biomechanics of odontoid screws, anterior cervical plates, posterior cervical plates, and posterior C1—C2 screw arthrodesis. It is hoped that this information will aid in implant selection.

*Department of Orthopaedic Surgery, University of California, Davis, Medical Center, Sacramento, California

†Department of Orthopaedic Surgery, University of Cincinnati, Ohio

‡;Department of Orthopaedic Surgery, Harborview Medical Center, Seattle, Washington.

© Lippincott-Raven Publishers.