Fig. 1From: Deformity progression in congenital posteromedial bowing of the tibia: a report of 44 casesSchematic drawing of the tibia (1a), anteroposterior (1b) and lateral (1c) radiographs of the leg in a 1-month old baby. The interphyseal angle (IPA) is measured between a line perpendicular to the proximal physis and a line perpendicular to the distal physis on a true anteroposterior (AP-IPA) and a true lateral (L-IPA) view of the leg, respectivelyBack to article page