Tibia valga after fracture: documentation of mechanism.

Tibia valga following fracture in the proximal metaphysis of the tibia in children was previously attributed to various mechanisms. This case report offers an additional explanation based on bone scintigraphy 10 months after injury. Decreased radionuclide uptake at the lateral proximal tibial physis without evidence of increased uptake on the medial side suggests that a Salter type V injury to the lateral growth plate can occur in conjunction with a medial metaphyseal fracture, resulting in the development of tibia valga.