[Effect of movement of cervical spine on compressed spinal cord-meningeal complex]

The compression of spinal cord-meningeal complex after the injury of cervical spine was simulated in seven intact fresh adult cadaver spines. In this study, a hole was drilled from the anterior part to the posterior in vertebral body C6 to accommodate a transducer which was pushed into the canal. The measurement of the pressure on the spinal cord-meningeal complex was made in different canal acclusion during the extension-flexion and rotation movements of the cervical spine. The results showed that the flexion and axial rotation of the cervical spine increased damage stress to the spinal cord under compression. The distribution of the stress on the spinal cord was discussed, and the strict immobilization and keeping the cervical spine in the natural-extension position were recommended for the injury of cervical spine.