Table 3 Comparison of HU between preoperative CT and postoperative CT

 Gluteus maximus

14.5 ± 12.4

17 ± 12.3

0.17

 Gluteus medius

24.6 ± 11.4

25.3 ± 11.1

0.79

 Tensor fasciae latae

27.2 ± 16.4

23.3 ± 18.3

0.174

 Internal obturator muscle

36.8 ± 10.8

13.7 ± 17.9

0

 External obturator muscle

31 ± 11.5

13.5 ± 16.6

0

 Gluteus maximus

16.5 ± 17.5

12.9 ± 16.1

0.04

 Gluteus medius

29.2 ± 12.8

33.7 ± 10.5

0.002

 Tensor fasciae latae

25.6 ± 13.4

34.6 ± 24.2

0.048

 Internal obturator muscle

34.3 ± 12.2

31.5 ± 14.8

0.24

 External obturator muscle

29.2 ± 11.2

23.8 ± 16

0.04