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Table 1 Mean difference (systematic bias) between real measurements on computed tomography and calculated data on opening gaps

From: Ability of an intentionally smaller anterior than posterior gap to reduce the sagittal tibial slope in opening wedge high tibial osteotomy

 

CT

Calculation

(C)-(D)

 

Mean (C)

SD

Mean (D)

SD

P-value

Anterior gap

10.84

3.48

8.53

2.77

2.30

<0.001

Posterior gap

11.18

3.50

12.19

3.97

−1.02

0.033

Δ gap (ant-post gap)

0.34

2.10

3.66

1.19

−3.32

<0.001