Last updated on July 6 2022
Description
The sacro-femoral angle (SFA) is another pelvic parameter. This procedure allows measuring the angle formed between the axis of the femur and the line tangent to the upper end plate of S1. SFA changes are reflected in the range of hip joint flexion. To perform this procedure, a lateral view is needed.
Measurements
The measurement made by the procedure is displayed in the image:
- Sacro-Femoral Angle (SFA): the angle between the line along with the S1 end plate and the line along the anatomical axis of the femur.
How to perform
After selecting this procedure in the sidebar, you must mark the points to conclude it. To see the caption of each point you need to click on this button 
Beware: you can change the position of the points at this stage or later. To do this, simply click on each handle with the left mouse button and move them to the most suitable position.
This procedure has no advanced configuration.