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Table 2 Data for harris hip score and complications rate from the included studies

From: Positive buttress reduction in femoral neck fractures: a literature review

Study

Harris hip score

(follow up 1 year)

Femoral head necrosis

Shortening (> 5 mm) or Displacement to varus (> 10°)

Fracture nonunion

AR

PBR

NBR

AR

PBR

NBR

AR

PBR

NBR

AR

PBR

NBR

Ding et al.(2016)

84.5

86

78.9

15.0%

15.4%

18.4%

7.5%

7.7%

26.8%

NS

Lu et al.(2017)

86.2

86.2

76.9

11.0%

11.0%

14.3%

14.2%

8.7%

25.7%

NS

Xiong WF et al.(2019)

NS

3.3%

0

-

10.0%

6.4

-

6.7%

3.3%

-

Huang K et al.(2020)

85.6

84.5

74.3

19.1%

20.8%

22.7%

23.8%

41.7%

50.0%

NS

Zhao et al.(2021)

85.9

85.4

81.9

13.4%

5.4%

32.2%

3.7%

5.1%

14.5%

3.7%

2.6%

12.9%

Zhao GL et al.(2021)

NS

12.2%

11.4%

20.6%

12.2%/4.9%

11.4%/5.7%

32.4%/11.8%

4.9%

2.9%

5.9%

Yang et al.(2023)

88.8

88.1

83.3

3.6%

4.0%

19.0%

21.4%

28%

66.7%

NS

Jiang QL et al.(2023)

85.9

86.2

85.2

4.8%

5.3%

25.0%

9.5%

5.3%

16.7%

NS

 

Harris hip score

( good excellent rate)

       

Tian et al.(2018)

89.6%

93.8%

-

16.7%

4.17%

-

NS

4.2%

0%

-

Zhu J et al.(2022)

64.8%

83.9%

-

10.8%

6.5%

-

PBR was lower than AR

5.4%

0%

-

LI et al.(2022)

100%

95.7%

64.3%

13.0%

8.7%

8.7%

13.04%

8.7%

39.1%

4.4%

8.7%

8.7%

  1. AR, anatomical reduction; PBR, positive buttress reduction; NBR, negative buttress reduction