Table 2. Summary of the physical and mechanical properties of magnesium alloys in comparison with human bone.

	Density (g/cm3)	Elastic modulus	Tensile strength (MPa)	Fracture toughness (MPa1/2)	Total elongation (%)
Cortical bone	1.8-2.1	3-20	35-283	3-6	1.07-2.10
Cancellous bone	1.0-1.4	NA	1.5-38	NA	NA
Magnesium alloys	1.74-2.0	41-45	150-400	15-40	2-20

Note: Different values are due to differences in ethnicity, age, testing conditions, etc. NA: not applicable. Data are from Maehara et al.^26-28