Craig's test for femoral anteversion/retroversion

Craig's test for femoral anteversion/retroversion

A clinical test used to identify femoral torsion.
 
Technique 
The patient lies prone with the knee of the affected leg flexed to 90°; the examiner palpates the posterior aspect of the greater trochanter, measuring the angle formed between the vertical axis extending from the tabletop and the longitudinal axis of the lower leg.
Positive test
The angle measured is outside the normal range of 8–15°. Significantly greater than 15° defines femoral anteversion (internal torsion); significantly less than 8° defines femoral retroversion (external torsion).