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Table 1 Characteristics of the included studies

From: A comparison of thrombosis in total knee arthroplasty with and without a tourniquet: a meta-analysis of randomized controlled trials

Author

Year

Age

(T/N T)

Number of patients

T/N T

Tourniquet pressure

Operation time (min)

DVT

K-C

D-d

Pain

Abdelsalam

1995

72.0/74.0

80

40/40

Twice SBP

<90

✓

  

✓

Wakankar

1999

72.5/71.8

77

37/40

Twice SBP

NA

✓

✓

 

✓

Aglietti

2000

70.0/68.0

20

10/10

0.8 bar

90.0

  

✓

 

Vandenbussche

2002

72.5/68.5

80

40/40

350 mmHg

151.0

✓

  

✓

Wauke

2002

63.2/61.4

37

19/18

SBP+100 mmHg

75.1

✓

   

Li

2008

71.0/70.0

80

40/40

SBP+100 mmHg

73.0

 

✓

  

Zhang

2010

72.0/71.0

60

30/30

SBP+100 mmHg

<90

✓

   

Yin

2011

63.1/61.9

39

20/19

NA

NA

  

✓

 

Yin

2012

68.9/67.1

40

20/20

NA

NA

  

✓

 

Ejaz

2014

68.0/68.0

92

33/31

250 mmHg

70.0

✓

  

✓

Mori

2016

72.8/74.6

103

51/52

250 mmHg

63.6

✓

   

Zhang

2016

63.2/65.2

230

84/82

SBP+13.3 kPa

81.7

✓

  

✓

Zhou

2017

66.8/69.1

150

72/68

NA

77.2

✓

✓

 

✓

Wu

2018

67.6/68.1

112

50/50

250 mmHg

67.2

✓

✓

 

✓

Goel

2019

66.0/66.5

200

100/99

300/225 mm Hg

71.6

✓

  

✓

  1. T tourniquet, N T non- tourniquet, DVT deep venous thrombosis, NA not available, K-C knee circumference, D-d D-dimers, SBP systolic blood pressure