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Blount disease

Case contributed by Ammar Haouimi
Diagnosis certain

Presentation

Leg bowing.

Patient Data

Age: 8 years
Gender: Female
mri

The MRI sequences demonstrate:

  • bilateral tibia vara
  • flattening with decreased thickness of the medial tibial epiphyses with a beak-shape appearance of the medial tibial metaphyses more pronounced on the left
  • compensatory hypertrophy of the medial femoral condyles
  • no significant lateral translation of the patellae on axial sequences
  • the metaphyseal-diaphyseal angle of Drennan was at 21º on the right and 30º on the left

Case Discussion

MRI features of Blount disease which is commonly bilateral, characterized by a local disturbance of growth of the medial aspect of the proximal tibial metaphysis and/or epiphysis that results in tibia vara. 

 

Additional contributor: A. Ramdani, MD

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