1. Determination of the antetorsion of the femur neck by means of two X-ray pictures;Rippstein;Z Orthop Ihre Grenzgeb,1955
2. CT determination of femoral torsion;Hernandez;Am J Roentgenol,1981
3. Roentgen examination of the proximal femur end in children and adolescents: a standardized technique also suitable for determination of the collum, anteversion, and epiphyseal angles; a study of slipped epiphysis and coxa plana;Billing;Acta Radiol Suppl,1954
4. Sonographic imaging of leg geometry;Keppler;Orthopade,1999
5. Computed tomography in the measurement of femoral anteversion;Weiner;Orthopedics,1978