(English captions by Andrea Matsumoto from the University of Michigan)
Next assess for any leg length discrepancy.
To prevent loss of leg length due to pelvic rotation, ask the patient to raise the pelvis
off of table and reposition before fully extending legs.
You want to measure the distance between the ASIS (anterior superior iliac spine) and the
medial maleolus and compare the distance from one side to the other side.