Dorsal hemivertebra deformity

Case contributed by Mohammad Osama Hussein Yonso


Lumbar spine pain for 1 week. Past medical history is not significant, no history of trauma. On examination: tenderness, swelling lumbar spine, walking difficulty, kyphotic deformity.

Patient Data

Age: 50 years
Gender: Male

The thoracolumbar spine is mildly deviated to the left side,

Thoracolumbar spine kyphosis about 65° on the lateral view. 

Zoomed view


Thoracolumbar spine kyphosis angle about 65°.

Dorsal hemivertebra deformity involving T12.

Case Discussion

Thoracic spine kyphosis >40° (normal 25-40°).

Thoracolumbar spine kyphosis >30° (normal ~zero degrees).

Some disorders affecting the spine and resulting in kyphosis :

  • Postural disorders.
  • Scheuermann kyphosis.
  • Congenital disorders.
  • Paralytic disorders (e.g., Poliomyelitis).
  • Myelomeningocele.
  • Post-traumatic (fractures with/without cord damage).
  • Inflammatory (e.g., Tuberculosis)
  • Post surgical (e.g., Postlaminectomy)
  • Post irradiation.
  • Metabolic (e.g.,Osteoporosis).

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