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Table 3 Absolute Differences in External Torsion, Lateral View

From: Radiographic cortical thickness parameters as predictors of rotational alignment in proximal tibial shaft fractures: a cadaveric study

 

10°

15°

20°

25°

30°

p-Value

Anterior Cortical Thickness

 ACT Mean

0.38 mm

0.89 mm

1.21 mm

1.62 mm

2.37 mm

2.95 mm

3.22 mm

<  0.001

 ACT SD

0.94 mm

0.83 mm

0.88 mm

1.28 mm

1.51 mm

1.74 mm

1.81 mm

 

 ACT Visibility

15.79%

57.89%

68.42%

73.68%

89.47%

94.74%

89.47%

 

 ACT Pos. Difference

36.84%

63.16%

68.42%

78.95%

89.47%

89.47%

84.21%

 

Posterior Cortical Thickness

 PCT Mean

0.17 mm

0.44 mm

0.71 mm

0.83 mm

1 mm

1.2 mm

1.42 mm

<  0.001

 PCT SD

0.32 mm

0.38 mm

0.54 mm

0.67 mm

0.68 mm

0.65 mm

0.8 mm

 

 PCT Visibility

10.53%

36.84%

42.11%

52.63%

73.68%

78.95%

84.21%

 

 PCT Pos. Difference

47.37%

31.58%

42.11%

57.89%

73.68%

78.95%

78.95%

 

Diameter

 Dia.lat Mean

0.41 mm

2.05 mm

3.47 mm

4.82 mm

6.31 mm

7.19 mm

7.32 mm

<  0.001

 Dia.lat SD

0.52 mm

0.95 mm

1.36 mm

1.6 mm

1.97 mm

2.34 mm

3.19 mm

 

 Dia.lat Visibility

21.05%

94.74%

100%

100%

100%

100%

94.74%

 

 Dia.lat Pos. Difference

73.68%

94.74%

94.74%

89.47%

94.74%

94.74%

89.47%

 
  1. 1 Visibility is given if the absolute difference exceeds 0.6 mm
  2. 2 A positive difference is equivalent to a greater proximal value compared to the distal value