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Table 9 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 1.2 1.36 0.47 0.8 1.1
SWHE 0.33 1.2 1.36 0.46 0.8 1.1
SWHA 0.33 1.2 1.36 0.46 0.8 1.1
M SNH 0.33 1.5 1.61 0.47 0.8 1.17
SWHE 0.33 1.5 1.61 0.46 0.8 1.2
SWHA 0.33 1.5 1.61 0.46 0.8 1.19
L SNH 0.33 0.6 1.07 0.47 0.5 1
SWHE 0.33 0.6 1.07 0.46 0.5 1.01
SWHA 0.33 0.6 1.07 0.46 0.5 1.01
  1. These values were obtained for the cortical bone considered as semi-ductile material for 2D and 3D FEA