Table 2 Previous interventions of hip joint injury before total hip arthroplasty and HHSs of patients before and after surgery

1

21

1

External fixation

Pertrochanteric

41.95

82

2

35

1

Debridement

Femoral neck

63.95

91.5

3

19

2

Debridement

Acetabulum

52.7

84.8

4

35

2

Internal fixation

Pertrochanteric

52.45

75.5

5

35

1

Debridement

Acetabulum, femoral head

29.25

73.7

6

33

2

Internal fixation

Femoral neck

51.25

79.8

7

31

2

Debridement

Femoral head and neck

51.7

63.9

8

42

2

Internal fixation

Femoral neck

62.95

94

9

34

2

Debridement

Femoral head and neck

65.95

70

10

27

1

External fixation

Pertrochanteric, femoral head

71.95

72.5

11

24

1

Debridement

Acetabulum, femoral head

45.95

79

12

27

1

Debridement

Femoral neck

58.95

75

13

42

2

Debridement

Acetabulum, femoral head

46.6

83.7

14

21

2

Debridement

Acetabulum

64.2

94

15

32

2

Debridement

Acetabulum, femoral neck

49.7

81.3

16

42

2

Debridement

Acetabulum

60.7

84

17

29

1

Debridement

Acetabulum, femoral neck

39.65

77.8

18

28

1

Debridement

Acetabulum, femoral head

41.95

75.8

19

24

2

Debridement

Femoral head and neck

31.1

46.8

20

27

1

Debridement

Femoral head and neck

52.7

88.7

21

41

1

Debridement

Femoral neck

50.9

82.6

22

24

1

Debridement

Acetabulum

50.9

92.6

23

31

1

Internal fixation

Acetabulum

44.5

84.8

24

39

1

Debridement

Femoral neck

56.7

89

25

48

1

Internal fixation

Pertrochanteric, femoral neck

72.95

85.85

26

29

2

Debridement

Acetabulum

60.95

69.5