Axial oblique CT to assess femoral anteversion.
OBJECTIVE
The objective of our study was to compare anteversion measurements of a human cadaveric femur obtained using axial CT slices with axial oblique reformations along the femoral neck and assess how accuracy changes across a range of simulated femur positions.


CONCLUSIONS
Axial oblique reformations allow more accurate anteversion assessment than axial images with femoral flexion, extension, and internal and external rotation. Centers should consider replacing the standard straight axial technique with the axial oblique method for CT determination of femoral anteversion.
Jarrett
Delma Y
DY
Department of Radiology, Children's Hospital Boston, Harvard Medical School, 300 Longwood Ave, Boston, MA 02115, USA. delma.jarrett@childrens.harvard.edu
Oliveira
Amy M
AM
Zou
Kelly H
KH
Snyder
Brian D
BD
Kleinman
Paul K
PK
D002102:Cadaver; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D015203:Reproducibility of Results; D012399:Rotation; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods*