Research Article

Comparison of Valgus Correction Angle between Patients with Developmental Dysplasia Hip and Normal Volunteers Measured by Three-Dimensional Reconstruction and X-Ray

Figure 1

The relation between FMA and VCA. (a) Determining the FMA by the angle between femoral mechanical axis and femoral anatomical axis. (b) Determining the VCA by the lines perpendicular to femoral mechanical axis and femoral anatomical axis. (c) Partial enlarged details show that the FMA is equal to VCA.