Blount's disease (congenital tibia vara)

Case contributed by Dr Ali Abougazia

Presentation

History of bowed legs for 5 years.

Patient Data

Age: 10
Gender: Female
Modality: X-ray
  • Fragmentation of medial tibial epiphysis on both sides.
  • Irregular medial physeal line on both sides.
  • Beaking of proximal medial tibial metaphysis on both sides.
  • Bone bridge across the medial physis on the left side.
  • Metaphyseal-diaphyseal angle (MDA) >11° on both sides (22° on right and 45° on left).
  • Tibiofemoral angle (TFA) >15°  on both sides; tibia vara (37° on right and 39° on left).

Case Discussion

Findings are consistent with infantile form of Blount's disease  (also known as tibia vara) which refers to a local disturbance of growth of the medial proximal tibial epiphysis.

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Case Information

rID: 22190
Case created: 18th Mar 2013
Last edited: 19th Feb 2016
Tag: tibia
Inclusion in quiz mode: Included

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