- Discussion
- w/ flouroscopy obtain a true lateral view of proximal femur in which femoral
neck & shaft are parallel but offset about 1 cm;
- measure the angle referenced from the horizontal;
- from the true lateral view, one can adjust rotation of the distal fragment in
order to achieve femoral neck anteversion of 15 to 20 deg (or achieve
15-20 deg of internal rotation of epicondylar axis relative to femoral neck);
- hence, whatever angle the flouroscope requires to superimposed the femoral
neck and shaft, the epicondylar axis needs to be internally rotated 20 deg;
- finally, assess thigh foot angle of uninjured leg and attempt to match this
rotation w/ the injured extremity;
- Reider Test:
- prominence of the greater trochanter indicates axis of the femoral neck;
Clinical determination of femoral anteversion. A comparison with
established techniques.
The anatomy and functional axes of the femur.
Femoral anteversion
