Femoral anatomy described in cylindrical coordinates using computed tomography.
A new method, which describes the femoral anatomy in terms of angles and distances is presented. Primary data are obtained from CT and reduced to cylindrical coordinates by a computer program. The approach yields rotational angles for the entire shaft and demonstrates the limitation of conventional measurements of the anteversion angle. The method is proposed as a generalized technique for measurement of rotation in orthopedic radiology.
D001696:Biomechanical Phenomena; D003201:Computers; D005069:Evaluation Studies as Topic; D005269:Femur / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D005270:Femur Head / Q000000981:diagnostic imaging; D005272:Femur Neck / Q000000981:diagnostic imaging; D006801:Humans; D008433:Mathematics; D008961:Models, Structural; D012399:Rotation; D014057:Tomography, X-Ray Computed / Q000379:methods*