Fig. 2From: The impact of limb loading and the measurement modality (2D versus 3D) on the measurement of the limb loading dependent lower extremity parametersAlignment of the 3D bone models. The leg models were reorientated within the reference coordinate system of CASPA, in a way that the mechanical leg axis was aligned with the y-axis of the coordinate system (normal of axial plane) and the patella was in line with the z-axis (normal of frontal plane)Back to article page