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Table 4 Absolute Differences in Internal Torsion, Anteroposterior 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

Medial Cortical Thickness

 MCT Mean

0.1 mm

0.4 mm

0.72 mm

0.67 mm

0.84 mm

0.92 mm

1.03 mm

0.009

 MCT SD

0.13 mm

0.5 mm

0.58 mm

0.79 mm

0.96 mm

0.97 mm

1.24 mm

 

 MCT Visibility

0%

15.79%

36.84%

36.84%

44.44%

57.89%

52.63%

 

 MCT Pos. Difference

31.58%

42.11%

57.89%

57.89%

55.56%

47.37%

52.63%

 

Lateral Cortical Thickness

 LCT Mean

0.15 mm

0.85 mm

1.45 mm

1.52 mm

1.09 mm

1.61 mm

1.84 mm

<  0.001

 LCT SD

0.23 mm

0.72 mm

0.86 mm

0.87 mm

0.9 mm

1.2 mm

1.28 mm

 

 LCT Visibility

10.53%

47.37%

78.95%

84.21%

55.56%

68.42%

78.95%

 

 LCT Pos. Difference

47.37%

57.89%

57.89%

63.16%

50%

52.63%

57.89%

 

Diameter A.P.

 Dia.ap Mean

0.81 mm

2.12 mm

2.89 mm

3.11 mm

3.63 mm

3.49 mm

3.65 mm

<  0.001

 Dia.ap SD

0.83 mm

1.29 mm

1.55 mm

1.74 mm

1.79 mm

2.01 mm

1.99 mm

 

 Dia.ap Visibility

47.37%

94.74%

100%

89.47%

94.44%

94.74%

94.74%

 

 Dia.ap Pos. Difference

63.16%

100%

94.74%

94.74%

94.44%

89.47%

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