Hypoplasia of the lumbar vertebral body simulating spondylolisthesis

Radiology. 1979 Oct;133(1):59-60. doi: 10.1148/133.1.59.


Fifty cases of spondylosis and spondylolisthesis were reviewed. In 9 of the 20 cases interpreted as Grade I spondylolisthesis at L5-S1, the sagittal diameter of L5 was shortened, creating a false impression of vertebral slippage. Such cases are felt to represent spondylolysis with hypoplasia of the vertebral body rather than true spondylolisthesis.

MeSH terms

  • Diagnosis, Differential
  • Humans
  • Lumbar Vertebrae / diagnostic imaging*
  • Radiography
  • Spondylolisthesis / diagnostic imaging*
  • Spondylolysis / diagnostic imaging