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Table 6 Probability of Tibial maltorsion at each measurement threshold for each of the radiographic variables studied

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

Probability Threshold PPV FDR Sensitivity Specificity
Medial Cortical Thickness (p < 0.001)     
 0.5 1.06 0.63 0.37 0.46 0.82
 0.6 1.52 0.60 0.40 0.33 0.89
 0.7 2.02 0.68 0.32 0.24 0.94
 0.8 2.63 0.77 0.23 0.15 0.97
 0.9 3.55 1.00 0.00 0.04 1.00
Lateral Cortical Thickness (p < 0.001)     
 0.5 2.42 0.55 0.45 0.49 0.77
 0.6 3.30 0.55 0.45 0.35 0.86
 0.7 4.25 0.63 0.37 0.24 0.94
 0.8 5.42 0.91 0.09 0.13 0.99
 0.9 7.17 1.00 0.00 0.04 1.00
Diameter A.P. (p < 0.001)     
 0.5 3.72 0.47 0.53 0.61 0.76
 0.6 4.47 0.60 0.40 0.51 0.87
 0.7 5.28 0.65 0.35 0.40 0.93
 0.8 6.27 0.94 0.06 0.26 0.99
 0.9 7.76 1.00 0.00 0.06 1.00
Anterior Cortical Thickness (p < 0.001)     
 0.5 1.92 0.49 0.51 0.63 0.76
 0.6 2.39 0.66 0.34 0.49 0.89
 0.7 2.90 0.86 0.14 0.36 0.94
 0.8 3.52 0.75 0.25 0.24 0.96
 0.9 4.45 0.91 0.09 0.14 0.99
Posterior Cortical Thickness (p < 0.001)     
 0.5 1.30 0.59 0.41 0.51 0.75
 0.6 1.78 0.60 0.40 0.34 0.85
 0.7 2.30 0.75 0.25 0.19 0.94
 0.8 2.94 0.48 0.52 0.06 0.97
 0.9 3.90 0.95 0.05 0.04 1.00
Diameter Lateral (p < 0.001)     
 0.5 3.91 0.42 0.58 0.62 0.77
 0.6 4.77 0.52 0.48 0.52 0.88
 0.7 5.71 0.75 0.25 0.43 0.95
 0.8 6.85 0.93 0.07 0.30 0.99
 0.9 8.57 1.00 0.00 0.13 1.00