Fig 1.
Fig 1 shows the definition of “femoral proximal shaft axis” and “femoral neck axis” with (a) AP View, (b) LM View.
Fig 2.
Fig 2 shows the definition of frontal and transversal plane.
Fig 3.
Fig 3 shows the measurement of femoral torsion: Angle between frontal plane and femoral neck axis projected onto transversal plane.
Table 1.
Provides a summary of femoral neck and torsion angles found the cohort.
Fig 4.
Fig 4a depicts the femoral neck angles at different ages and Fig 4b depicts the femoral torsion angles at different ages.