Scheuermann Disease

  • Etiology: repeated vertical trauma causes nucleus pulposus to migrate through weak point between ring apophysis and vertebral endplate to produce avulsion fracture of endplate
  • Imaging: intravertebral disk herniation (Schmorl nodes), anterior vertebral body wedging, disk space narrowing, defects in anterosuperior and anteroinferior aspects of vertebral bodies = anterior disk herniation
  • Note: need wedging of greater than 5 degrees of three or more contiguous vertebral bodies, increased kyphosis > 40 degrees
  • Clinical: involves thoracic (more frequent) and lumbar spine

Radiology Cases of Scheuermann Disease

Radiograph and CT of Scheuermann disease
Lateral scout radiograph and 2D sagittal reconstruction of the lumbar spine from a CT of the abdomen shows anterior wedging and Schmorl nodes deformities of the T8, T9 and T10 vertebral bodies along with disc space narrowing at those levels.