Abstract
1. It is suggested that early weight-bearing on physiologically bowed legs in infants leads to slowing of growth of the tibia and consequent increase of the differential length between fibula and tibia.
2. Such differential growth can produce both varus and medial rotation, leading to established tibia vara or Blount's disease.
3. Stimulation of tibial growth by simple metaphysial forage can correct this deformity if performed at an early age.