Table 4 The multivariate logistic regression model, considering TAD > 34.8 mm and CalTAD > 35.2 mm.

From: New tip-apex distance and calcar-referenced tip-apex distance cut-offs may be the best predictors for cut-out risk after intramedullary fixation of proximal femur fractures

Variable

Cut-off TAD 34.8 and Cut-off CalTAD 35.2

Odds Ratio (OR)

95% confidence interval (CI)

p value

Lower

Upper

TAD

Ref (< 34.8 mm)

4.40

1.13

17.03

0.032

CalTAD

Ref (< 35.2 mm)

17.76

3.83

82.22

 < 0.001

Age

1.01

0.96

1.07

0.696

AO/OTA Classification

Ref (A1 + A3)

2.77

0.84

9.13

0.093

Intramedullary Device

Ref (Gamma3)

0.71

0.39

1.29

0.256

MSC

 

2-4-6-8

1.79

0.39

8.22

0.450

 

1-3-7-9

2.15

0.41

11.22

0.362

Quality of reduction

Ref (good)

1.6

0.49

5.14

0.429

Weight Bearing

Ref (no)

0.75

0.21

2.64

0.658

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