Blount disease

Alternative names:

tibia vara

Symptoms:

• sudden bowing of one or both legs
• may be rapidly progressive
• bowing may appear asymmetric
• most of the bowing appears to occur just below the knee

Associated findings

• more common among black children
• higher association with walking at an early age
• higher association with obesity

Signs and tests:

Physical examination shows that the lower legs angle inward. An X-ray of the knee and the lower leg confirms the diagnosis (see joints X-ray).