Relation between operative findings and magnetic resonance imaging of lumbar intervertebral herniation

We studied the relation between operative findings and magnetic resonance imaging of lumbar intervertebral disc herniation in 124 subjects. The accuracy rate was 63% for rupture of the posterior longitudinal ligament. Operative findings indicated extrusion in most cases of hernia shifted to the cranial side in MRI. Central type herniated mass revealed by transverse MRI was found to be located in the subligamentous space in operative findings. (author)