Table 2 Univariate analysis of the factors for each range-of-motion [ROM ( +) and ROM (−)] group

Age (years) ^a

63.4 ± 11.0

59.2 ± 9.2

Sex (hips)

 Male

41

29

12

 Female

92

82

10

BMI (kg/m²) ^a

24.4 ± 4.2

23.8 ± 3.7

Diagnosis (hips)

 OA

101

88

15

 ONFH

24

18

6

 FNF

5

5

0

 RA

1

0

1

Implants (hips)

 G7-Taperloc

80

68

12

 SQRUM-J-taper

53

43

10

Yoshimine`s CA (degrees) ^a

91.1 ± 7.4

90.5 ± 5.6

93.6 ± 13.1

Widmer`s CA (degrees) ^a

38.0 ± 5.6

37.6 ± 4.3

40.2 ± 9.8

Absolute error of Yoshimine`s CA (degrees) ^a

5.7 ± 4.6

4.5 ± 3.2

11.9 ± 5.5

Absolute error of Widmer`s CA (degrees) ^a

4.4 ± 3.6

3.5 ± 2.5

8.8 ± 4.8

Each factors of CA

 Stem anteversion (degrees) ^a

5.4 ± 4.4

5.1 ± 4.0

6.9 ± 5.5

 Cup radiographic inclination (degrees) ^a

3.1 ± 2.3

3.0 ± 2.3

3.7 ± 2.4

 Cup anatomical anteversion (degrees) ^a

4.3 ± 3.6

3.9 ± 3.1

6.0 ± 5.3