Stress Analysis of Osteoporotic Lumbar Vertebra Using Finite Element Model with Microscaled Beam-Shell Trabecular-Cortical Structure

Table 1

Geometries for trabecular lattice models for the young, middle, and old groups.

	Thickness of a single strut (mm)		Length of a single strut (mm)
	Horizontal (𝑑ℎ)	Vertical (𝑑𝑣)	Horizontal (𝑙ℎ)	Vertical (𝑙𝑣)
Young	0.150	0.208	0.674	0.633
Middle	0.116	0.187	0.861	1.100
Old	0.107	0.201	1.145	1.668