Identification of Femoral Reference Lines and Angles in Saggital Plane by Solomin LN in Novel Techniques in Arthritis & Bone Research - Juniper Publishers
In order to determine or exclude the presence of
deformation of the long bone, reference lines and angles (RLU) are used.
RLS includes anatomical, mechanical axis of bones, joint lines, as well
as anatomical and mechanical angles in the frontal and sagittal planes.Anatomy of the femur in the sagittal plane is of
great clinical importance. It affects the position of the point of
introduction of the intramedullary stem, the design of the femoral
components of the revision hip joint endoprostheses. It is known that
the diaphysis of the femur has a physiological bend in the sagittal
plane.
As a result, the anatomical axis of the femur in the sagittal plane
looks like a curved line. In the works devoted to the treatment of
deformities of the femur, both for planning the correction of
deformities in the sagittal plane and for evaluating the anatomical
results of treatment, the authors use only the distal anatomical angle
of the femur .
However, the use of only anatomical articular angles in the sagittal
plane allows one to evaluate the physiological flexure of the femur not
throughout the entire diaphysis, but only in the proximal and distal
parts of the femur. In addition, the study conducted by WM Tang found that the distal third of the femur has a significantly greater
curvature than the proximal and middle third of it.
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