Fig. 3
From: Calculation of pediatric femoral fracture rotation from direct roentgenograms
Step by step measurement technique. a The intersection of the proximal fracture line and the vertical midline of the femoral diaphysis is found (point A). b The vertical distance of this point to the fracture edge is determined (h). c The distance h is transferred to the distal fracture line edge; a line perpendicular to h is drawn. The intersection of this line with the distal fracture line is the point A’ (the corresponding point of A). d The distance between A and A’ is the distance d