Abstract
Posterior premarginal disk herniation is a variety of intraspongy herniation seen in adolescents and young adults. Six cases in adults (5 male and one female, mean age 32.5 years) are reported here. Presenting symptoms included isolated lower back pain (2 cases), lower back pain with sciatica (3 cases), and intermittent claudication (2 cases). Lateral roentgenograms of the lumbar spine and CT scan studies established the diagnosis by disclosing a posterior marginal defect of a vertebral corner with a bony spicule projecting into the spinal canal. Posterior premarginal disk herniation may develop as a result of dystrophy and/or trauma. Management of this condition remains to be defined.