Table 1 Comparison of differences in anatomical measures of the angle between mechanical and anatomical axis, bow angle, diaphyseal–condylar angle, femoral neck angle and version angle calculated using posterior condylar axis and trans-epicondylar axis for reconstructions using the image intensities and the contour measures with projections to the anterior–posterior (AP) and mediolateral (ML) projections

Intensity

Mech-anat Axis

0.58

0.45

0.65

0.61

0.88

0.48

0.70

0.73

0.65

0.58

p = 0.49

p = 0.79

p = 0.2

p = 0.85

p = 0.26

Bow

0.67

0.87^B

0.95

1.02

1.08

1.36^C

1.11

1.41^B

0.93

1.14

p = 0.31

p = 0.47

p = 0.025

p = 0.1

p = 0.001

Diaphyseal–condylar

2.92

3.75^A

2.75^C

3.82^A

4.46

9.07^A

5.81^C

7.06

3.85

5.06

p = 0.77

p = 0.21

p = 0.08

p = 0.89

p = 0.14

Neck

2.88^D

2.35

3.28

3.45

4.03^D

3.88

3.62

3.80

3.47

3.40

p = 0.83

p = 0.61

p = 0.95

p = 0.84

p = 0.79

Version (PCA)

5.80

6.00

5.86

11.15

6.06

9.58

6.25

9.49

6.06

9.16

p = 0.73

p = 0.007

p = 0.09

p = 0.13

p = 0.002

Version (TEA)

6.28

6.61

8.05

9.50

6.97

9.81

6.35

8.28

6.68

7.94

p = 0.87

p = 0.03

p = 0.11

p = 0.41

p = 0.03

Contour

Mech-anat Axis

0.54

0.47

0.60

0.46

0.54

0.46

0.56

0.53

0.56

0.47

p = 0.42

p = 0.34

p = 0.46

p = 0.86

p = 0.17

Bow

0.91

0.70

1.22

0.67

1.50

0.84

0.97

0.92

0.75

1.09

p = 0.09

p = 0.06

p = 0.006

p = 0.57

p = 0.0006

Diaphyseal–condylar

1.61

1.93

2.29

2.11

2.32

3.89

2.72

3.27

2.26

2.57

p = 0.77

p = 0.87

p = 0.07

p = 0.63

p = 0.17

Neck

2.12

1.77

1.79

2.08

2.13

1.49

2.95

1.99

2.18

1.87

p = 0.25

p = 0.86

p = 0.40

p = 0.03

p = 0.05

Version (PCA)

6.32

4.40^A

5.46

5.51

5.47

8.34^A

6.71

8.38

6.28

6.57

p = 0.24

p = 0.78

p = 0.06

p = 0.32

p = 0.35

Version (TEA)

8.00

5.38^A

6.72

6.88

7.70

11.02^A

8.70

9.64

7.87

7.84

p = 0.10

p = 0.84

p = 0.19

p = 0.37

p = 0.85