From: Total hip arthroplasty after failed transtrochanteric rotational osteotomy for osteonecrosis of the femoral head: analysis of three-dimensional morphological features
Measurement
TRO group
Control group
p value
Mean AP diameter, mm (SD)
50.0 (7.0)
37.2 (3.8)
< 0.001*
Mean ML diameter, mm (SD)
49.9 (5.5)
47.2 (3.8)
0.12
Mean AP/ML ratio (SD)
1.01 (0.1)
0.79 (0.1)