The pathomechanics of compression injuries in the cervical spine. Nondestructive and destructive investigative methods |
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Authors: | Y Shono PC McAfee BW Cunningham |
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Affiliation: | Department of Orthopaedic Surgery, Hokkaido University School of Medicine, Japan. |
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Abstract: | Biomechanical analysis using nondestructive and destructive investigative methods was performed to evaluate the mechanisms of cervical compression injuries. These injuries produce two basic modes of failure: 1) anterior dislocation; and 2) rupture of the anterior ligamentous complex of the vertebral body. Distribution of these two failure patterns was determined by the initial cervical spine position; translational alignment did not have a significant effect. Different results were observed between spines positioned in flexion and extension, indicating that the most important factor determining the mode of failure was rotational alignment in the sagittal plane. |
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