Abnormal magnetic-resonance scans of the lumbar spine in asymptomatic subjects. A prospective investigation.

  title={Abnormal magnetic-resonance scans of the lumbar spine in asymptomatic subjects. A prospective investigation.},
  author={Scott D. Boden and David O. Davis and T S Dina and N. J. Patronas and Sam W. Wiesel},
  journal={The Journal of bone and joint surgery. American volume},
  volume={72 3},
Key MethodWe performed magnetic resonance imaging on sixty-seven individuals who had never had low-back pain, sciatica, or neurogenic claudication. The scans were interpreted independently by three neuro-radiologists who had no knowledge about the presence or absence of clinical symptoms in the subjects. About one-third of the subjects were found to have a substantial abnormality. Of those who were less than sixty years old, 20 per cent had a herniated nucleus pulposus and one had spinal stenosis. In the…

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