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Table 3 Clinical outcome measurements

From: Outcomes of human umbilical cord blood-derived mesenchymal stem cells in enhancing tendon-graft healing in anterior cruciate ligament reconstruction: an exploratory study

 

Preoperative

6 months

12 months

24 months

Time/group

Time × group

KT-2000 arthrometer measurement, mean ± SD

Negative control group (n = 10)

3.4 ± 2.13

0.78 ± 1.84

1 ± 1.03

1.92 ± 0.92

< .0001/0.0109

0.793

Experimental group (n = 8)

5.1 ± 1.45

2.38 ± 1.66

1.5 ± 1.78

1.8 ± 2.05

Positive control group (n = 9)

4.3 ± 2.18

2.25 ± 1.6

2.39 ± 1.39

2.13 ± 1.13

Lachman testa

Negative control group (n = 10)

2.4 ± 0.7

0 ± 0

0.22 ± 0.44

0.29 ± 0.76

< .0001/0.8681

0.8038

Experimental group (n = 8)

1.95 ± 0.9

0.14 ± 0.38

0.5 ± 0.93

0.4 ± 0.89

Positive control group (n = 9)

2.2 ± 0.79

0.1 ± 0.32

0.38 ± 1.06

0.56 ± 1.01

Pivot shift testa

Negative control group (n = 10)

1.3 ± 0.48

0 ± 0

0.13 ± 0.35

0.2 ± 0.45

< .0001/0.2199

0.9245

Experimental group (n = 8)

1.4 ± 0.97

0.2 ± 0.45

0.14 ± 0.38

0.4 ± 0.89

Positive control group (n = 9)

1.3 ± 0.48

0.4 ± 0.84

0.63 ± 1.19

0.67 ± 1.12

International Knee Documentation Committee subjective score

Negative control group (n = 10)

56.2 ± 17.7

68.19 ± 15.14

79.95 ± 8.37

76.88 ± 21.52

< .0001/0.2813

0.9195

Experimental group (n = 8)

50.88 ± 14.86

70.11 ± 16.94

77.25 ± 18.75

87.36 ± 14.93

Positive control group (n = 9)

45.04 ± 19.13

65.96 ± 21.7

75.04 ± 16.69

74.2 ± 22.67

Lysholm score

Negative control group (n = 10)

66.6 ± 19.63

89.22 ± 8.96

91.33 ± 5.02

88.44 ± 13.87

< .0001/0.1384

0.8227

Experimental group (n = 8)

73.8 ± 12.87

82.5 ± 23.11

92.63 ± 8.09

95 ± 6.38

Positive control group (n = 9)

62.7 ± 20.92

87 ± 9.27

87.89 ± 11.04

83.9 ± 25.71

Knee Injury and Osteoarthritis Outcome Score

Negative control group (n = 10)

66.55 ± 20.14

87.95 ± 7.06

93.78 ± 3.19

95.6 ± 4.99

< .0001/0.9053

0.8299

Experimental group (n = 8)

74.17 ± 13.05

86.56 ± 13.77

92.45 ± 10.43

95.08 ± 9.41

Positive control group (n = 9)

76.14 ± 17.58

90.63 ± 9.08

90.5 ± 11.27

92.43 ± 12.97

Tegner activity level

Negative control group (n = 10)

3.7 ± 2.16

4.89 ± 1.27

5.89 ± 1.76

5.89 ± 2.42

< .0001/0.6755

0.9927

Experimental group (n = 8)

3.9 ± 1.45

4.88 ± 0.64

6.38 ± 2.5

6.57 ± 1.72

Positive control group (n = 9)

3.3 ± 1.34

4.9 ± 1.97

5.89 ± 1.62

5.8 ± 2.1

  1. aLachman test/pivot shift test +, ++, +++ converted to 1, 2, 3