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Table 1 A list of included studies and demography of the study subjects

From: Comparison of arthroplasty vs. osteosynthesis for displaced femoral neck fractures: a meta-analysis

First author

Normal cognition

Interventions

No. of patients

Age (years)

Male (%)

Duration of follow-up

Tools for functional measurement

Total hip arthroplasty vs. hemiarthroplasty

 Avery (2011) [45] and Baker (2006) [46]

Yes

Total hip arthroplasty

40

74

20

8.83 (7.2 to 10.3) years

Oxford Hip Score

Hemiarthroplasty

41

76

22

8.6 (7.2 to 10) years

 Cadossi (2013) [49]

Yes

Total hip arthroplasty

42

82

19

28.6 (22 to 52) months

Harris Hip Score

Hemiarthroplasty

41

84

32

30.1 (23 to 50) months

 Hedbeck (2011) [48] and Blomfeldt (2007) [47]

Yes

Total hip arthroplasty

60

81

22

4 years

Harris Hip Score

Hemiarthroplasty

60

81

10

 Keating (2006) [51] and Keating (2005) [50]

Yes

Total hip arthroplasty

69

75

25

2 years

Hip rating questionnaire

Hemiarthroplasty

69

75

22

 Macaulay (2008) [52]

Yes

Total hip arthroplasty

17

82

59

34 (29 to 42) months

Harris Hip Score

Hemiarthroplasty

23

77

39

 Ravikumar (2000) [53] and Skinner (1989) [54]

No

Total hip arthroplasty

89

81

10

13 years

Harris Hip Score

Hemiarthroplasty

91

82

 van den Bekerom (2010) [55]

Yes

Total hip arthroplasty

115

82

22

5 years

Harris Hip Score

Hemiarthroplasty

137

80

16

Total hip arthroplasty vs. osteosynthesis

 Bachrach-Lindström (2000) [24]

No

Total hip arthroplasty

50

84

20

1 year

NA

Closed reduction and internal fixation

50

84

24

 Blomfeldt (2005a) [27], Tidermark (2003) [28], and Tidermark (2003) [29]

Yes

Total hip replacement

49

79

18

4 years

Charnley’s numerical classification

Closed reduction and internal fixation

53

81

21

 Chammout (2012) [15]

Yes

Total hip replacement

43

78

12

17 years

Harris Hip Score

Open reduction and internal fixation

57

79

28

 Jónsson (1996) [25]

NA

Total hip replacement

23

80a

22

2 years

Walking ability, pain or social function

Closed reduction and internal fixation

24

79a

25

 Söreide (1979) [26]

NA

Total hip replacement

53

78

13

14.5 (12–23) months

Stinchfield’s classification system

Reduction and internal fixation

51

78

26

14.7 (12–24) months

Hemiarthroplasty vs. osteosynthesis

 Bjorgul (2006) [30]

NA

Hemiarthroplasty

455

82

20

6 years

NA

Internal fixation

228

82

31

 Blomfeldt (2005b) [31]

No

Hemiarthroplasty

30

84

7

2 years

Charnley’s numerical classification

Internal fixation

30

84

13

 Davison (2001) [10]

Yes

Thompson unipolar hemiarthroplasty

90

76a

21

5 years

Harris Hip Score

Monk bipolar hemiarthroplasty

97

75a

26

Reduction and internal fixation

93

73a

25

 El-Abed (2005) [32]

Yes

Hemiarthroplasty

62

74

35

3 (3 to 4.5) years

Matta Scoring System

Dynamic screw fixation

60

72

30

 Frihagen (2007) [41] and Støen (2014) [42]

No

Hemiarthroplasty

110

83

29

6 (5 to 7) years

Harris Hip Score

Internal fixation

112

83

22

 Hedbeck (2013) [33]

No

Hemiarthroplasty

29

85

17

2 years

Charnley’s numerical classification

Internal fixation

30

84

17

 Heetveld (2007) [34]

No

Hemiarthroplasty

109

83

17

2 years

Harris Hip Score

Internal fixation

115

77

34

 Parker (2002) [44] and Parker (2010) [43]

No

Hemiarthroplasty

229

82

20

11 years

Charnley’s numerical classification

Internal fixation

226

82

20

 Puolakka (2001) [35]

NA

Hemiarthroplasty

15

82

7

2 years

NA

Internal fixation

17

81

24

 Rödén (2003) [36]

Yes

Prosthesis

47

81

28

5 years

NA

Internal fixation

53

81

30

 Sikorski (1981) [37]

NA

Posterior Thompson

57

80

16

2 years

Pain and mobility

Anterior Thompson

57

9

Internal fixation

76

21

 

 van Dortmont (2000) [38]

No

Hemiarthroplasty

29

84

24

16.5 (0.167 to 69.5) months

NA

Internal fixation

31

84

3

 van Vugt (1993) [39]

Yes

Hemiarthroplasty

22

76

36

3 years

Sheperd’s pain and the hip mobility score

Osteosynthesis

21

75

48

 Waaler Bjornelv (2012) [40]

No

Hemiarthroplasty

80

82

29

2 years

Harris Hip Score

Internal fixation

86

22

  1. NA not available
  2. aData are shown as median numbers