Table 2 Maximum von Mises stress (Stress) in the plates, maximum Von Mises strain (Strain) in the bone adjacent to the plates screws and maximum inter-fragmentary movement (IFM) for the two arms, and the differences between the arms for each of the three healing stages (HS), all cases are for screw configuration 3.

From: Personalised high tibial osteotomy has mechanical safety equivalent to generic device in a case–control in silico clinical trial

  

Generica

 

Personaliseda

Adjusted Difference (95% CIs)b Generic—Personalised

 
 

n

Mean (SE)

n

Mean (SE)

 

p values

Stress (MPa)

HS2

391

331.8 (13.55)

410

345.1 (9.54)

−12.5 (−70.0, 45.0)

0.67

HS3

410

90.6 (3.56)

392

108.3 (3.81)

−17.1 (−26.2, −7.9)

<0.001

HS4

416

37.0 (1.64)

419

48.3 (1.60)

−11.1 (−15.3, −6.8)

<0.001

Strain (unitless)

HS2

391

0.015 (0.00071)

365

0.017 (0.00067)

−0.0011 (−0.0030, 0.0008)

0.27

HS3

410

0.011 (0.00065)

392

0.011 (0.00056)

−0.0002 (−0.0024, 0.0021)

0.88

HS4

416

0.0096 (0.00067)

419

0.0090 (0.00055)

0.0005 (−0.0020, 0.0031)

0.67

IFM (mm)

HS2

391

0.31 (0.012)

410

0.33 (0.015)

−0.014 (−0.045, 0.017)

0.37

HS3

410

0.12 (0.005)

392

0.12 (0.004)

−0.005 (−0.010, 0.001)

0.10

HS4

416

0.04 (0.002)

419

0.06 (0.003)

−0.036 (−0.054, −0.018)

<0.001

  1. aData are presented for all observations, which are clustered within participants.
  2. bEstimates are based on a multi-level logistic model using repeated measures over time and allowing for additional clustering within participants using robust standard errors.