All topics
Spine10 – 18 years

Adolescent Idiopathic Scoliosis

A structural lateral curvature of the spine with rotation, of unknown cause, presenting during adolescence — the most common form of scoliosis.

Presentation

  • Asymmetric shoulders, waist, and scapular prominence
  • Positive Adam forward bend test with rib hump (measured by scoliometer)

Imaging & Workup

  • Standing PA and lateral full-spine radiographs
  • Cobb angle measurement; Risser sign for skeletal maturity

Treatment

Observation

Curves < 25° with periodic monitoring.

Bracing

25–45° in skeletally immature patients to halt progression.

Surgery

Curves > 45–50° typically managed with posterior spinal fusion.

Clinical Pearls

  • Bracing prevents progression, it does not correct the curve
  • Left thoracic curves warrant MRI to rule out neural axis abnormality