Table 2 Comparison between the revision patients and the non-revision patients

Sex (Male:female)

56 (26:30)

18 (10:8)

0.592

Age, years

56.61 ± 12.22

54.61 ± 16.01

0.579

BMI, kg/m²

22.98 ± 3.22

24.57 ± 2.84

0.066

 ANFH

25

8

0.365

 Osteoarthritis

9

1

 DDH

13

3

 Traumatic arthritis

5

2

 Else

4

4

Head size (mm)

44.96 ± 3.12

45.61 ± 3.18

0.448

Cup size (mm)

50.77 ± 3.97

51.56 ± 3.73

0.460

Acetabular abduction angle (°)

46.64 ± 6.65

51.54 ± 3.30

0.004

Serum Co concentration (μg/L)

8.96 ± 21.54

21.04 ± 24.19

0.048

Serum Cr concentration (μg/L)

104.18 ± 31.91

124.48 ± 16.82

0.012

Harris Hip Score

85.30 ± 9.16

61.11 ± 6.68

< 0.001

Western Ontario and McMaster Universities (WOMAC) index

79.04 ± 14.49

61.00 ± 3.83

< 0.001