Trauma or excessive muscular activity may produce dislocation, fracture or fracture dislocation of a vertebra. Distortion of the vertebral column may also occur momentarily, the vertebrae quickly returning into normal alinement. According to Oppenheim, 1 in the very short period of temporary vertebral displacement, contusion, compression or tearing of the cord may take place.
Frazier2 states that the mechanism of such vertebral "sprains" is an overstretching or laceration of the spinal ligaments, and according to the extent of ligamentous injury there may be more or less transitory disarrangement of the normal relationship of one vertebral body to the other. Only when the bodies do not return to their original relationship is the lesion converted into a true dislocation. In cases of localized cord injury without evidence of fracture or dislocation, the assumption is that the cord has been subjected to pressure by a temporary luxation.
Frazier gives, as the
GRINKER RR, GUY CC. SPRAIN OF CERVICAL SPINE CAUSING THROMBOSIS OF ANTERIOR SPINAL ARTERY. JAMA. 1927;88(15):1140–1142. doi:10.1001/jama.1927.02680410016007
Customize your JAMA Network experience by selecting one or more topics from the list below.
Create a personal account or sign in to: