Table 5 Statistical analysis

Tissue morphology

2.97**

4.04

− 2.134*

0.99

0.16

1.78

69.56

19.11

6.37

57.78

9.98

3.33

Cell morphology

2.23

2.23

− 1.96

0.74

− 0.02

1.47

69.56

22.82

7.61

51.11

18.82

6.27

Chondrocytes clustering

− 1.00

− 1.00

− 0.91

− 033

− 1.00

0.35

69.11

16.50

5.50

58.67

19.25

6.42

Surface architecture

2.11

2.11

− 1.72

0.70

− 0.05

1.42

53.89

5.40

1.80

56.22

8.18

2.73

Basal integration

3.63**

3.64

− 2.55*

1.21

0.32

2.07

88.11

5.82

1.94

75.56

18.78

6.26

Formation of tidemark

6.29***

6.29

− 2.67***

2.10

0.88

3.28

89.11

5.37

1.79

82.44

6.15

2.05

Subchondral bone abnormalities

3.15*

3.15

− 2.43**

1.05

0.21

1.86

36.78

8.09

2.70

24.67

5.43

1.81

Inflammation

1.33

1,33

− 1.15

0.44

− 0.26

1.12

88.67

10.89

3.63

70.67

17.82

5.94

Abnormal calcification/ossification

1.00

–

− 1.00

–

–

–

92.56

8.95

2.98

88.67

14.01

4.67

Vascularisation

2.28

2.28

− 2.08*

0.76

− 0.01

1.49

100.00

0.00

0.00

98.56

4.33

1.44

Surface/superficial assessment

1.80

1.80

− 1.48

0.60

− 0.13

1.30

78.33

21.71

7.24

58.89

23.46

7.82

Middle/deep zone assessment

1.97

1.97

− 1.72

0.66

− 0.09

1.36

75.56

18.78

6.26

67.11

11.22

3.74

Matrix staining

4.07**

4.07

− 2.38*

1.36

0.41

2.26

79.67

11.05

3.68

70.44

6.89

2.30

Overall assessment

2.59*

2.59

− 1.96*

0.86

0.07

1.62

81.00

12.63

4.21

71.33

6.78

2.26

Overall rating

3.388**

6.606

− 2.310*

1.129

0.259

1.959

76.55

9.83

328

66.91

6.76

2.25