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Table 10 Degree of multiaxiality h, critical value of total strain ε ertr and factor \( \left(\sqrt{E{\varepsilon}_{e rtr}/{R}_e}\right) \)

From: Mechanical strength assessment of a drilled hole in the contralateral cortex at the end of the open wedge for high tibial osteotomy

Cases Specimens 2D FEA 3D FEA
h ε ertr [%] \( \sqrt{E{\varepsilon}_{e rtr}/{R}_e} \) h ε ertr [%] \( \sqrt{E{\varepsilon}_{e rtr}/{R}_e} \)
H SNH 0.33 0.6 3 0.47 3.2 2.2
SWHE 0.33 0.6 3 0.46 3.5 2.28
SWHA 0.33 0.6 3 0.46 3.5 2.27
M SNH 0.33 0.6 3.24 0.47 3.2 1.37
SWHE 0.33 0.6 3.24 0.46 3.5 2.46
SWHA 0.33 0.6 3.24 0.46 3.4 2.45
L SNH 0.33 0.6 3.38 0.47 3.2 2.48
SWHE 0.33 0.6 3.39 0.46 3.5 2.58
SWHA 0.33 0.6 3.39 0.46 3.4 2.56
  1. These values were obtained for the cortical bone considered as ductile material for 2D and 3D FEA