Fracture-dislocation of the thoracolumbar spine without neurological deficit: a report of two cases and literature review.

Fracture-dislocations of the thoracolumbar spine without neurological deficit have been infrequently reported. The mechanism responsible for the preservation of normal neurological function; is either posterior element fractures leading to free-floating laminae or a fracture-separation of the vertebral arch, in which pedicle fractures allow the posterior elements to remain nearly aligned, with preservation of the spinal canal integrity and maintenance of normal spinal cord function. These fracture-dislocations need to be managed carefully to achieve a good outcome.