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

Journal of Experimental Orthopaedics

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

Cases	Specimens	2D FEA			3D FEA
Cases	Specimens	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

These values were obtained for the cortical bone considered as ductile material for 2D and 3D FEA