[Pseudarthrosis of the dorso-lumbar vertebrae].

The authors have observed three cases of fractures at the thoraco-lumbar level which did not unite after ten to twelve months - Dynamic X-rays demonstrated persisting mobility of about 20 degrees. The fracture line of the vertebral bodies was situated in a frontal plane and fragments were separated by the antero-inferior edge of the above vertebral body. The authors conclude that such fractions ought to be treated by internal fixation when recent, internal fixation and grafting when ancient.