Effect of Calcar Screw in Locking Compression Plate System for Osteoporotic Proximal Humerus Fracture: A Finite Element Analysis Study

Table 2

Material properties assigned to individual the finite element models. LCP: locking compression plate.

Property	LCP system			Humerus
	LCP	Locking screw	Cortex screw	Cortical bone	Trabecular bone	Articular cartilage	Subchondral
Material	TiCP	Ti-6Al-7Nb	TiCP	Osteoporotic bone
Young’s modulus (GPa)	103	105	103	12	0.250	0.002	3.5
Poisson’s ratio	0.3	0.3	0.3	0.3	0.3	0.3	0.3
Ultimate tensile strength (MPa)	550	900	550	—