Valgus deformity after fracture of the proximal tibial metaphysis in childhood.

When a childhood fracture of the proximal tibial metaphysis with valgus dislocation is not anatomically reduced, a valgus deformity comparable with the angulation seen on the accident X-ray develops within a few weeks. The angulation o the proximal tibia shows neither exacerbation nor regression, but in a number of cases correction of the mechanical axis occurs in the distal epiphyseal plate.