Blount's Disease

Demographic

  • Obese
  • Female
  • Family Hx
  • Progressive Varun deformity
  • Abnormal growth posteromedial physis

Classification

Infantile

  • <4y.o
  • Usually bilateral

Adolescent

  • I: Irregular ossification
  • II-IV: Progressive slope depression
  • V: cleft in epiphysis
  • VI: bony bridge

Aetiology     

  • Internal tibial torsion
  • Bow legs
  • Early walkers
  • Drennan angle: metaphysis/diaphysis angle – normal <11o
  • Physiological
  • Ricket’s
  • OM
  • Trauma
  • Ollier’s
  • Skeletal Dysplasia

Natural History

  • Infantile usually resolves

Treatment     

  • Nonoperatvie
  • KAFO
  • Slow lateral side
  • Restore medial side