Skip to main content
. 2014 Mar 17;9(3):e92312. doi: 10.1371/journal.pone.0092312

Table 3. E, H, and E/H ratio of the trabecular and cortical bone sites as determined by nanoindentation.

VL1R VL3R VL5R VL7R VLNR SPD BCL
Tb.T E (GPa) 14.90±1.02 15.00±1.11 15.00±1.23 15.00±0.89 14.90±0.74 14.90±1.35 15.00±1.41
H (GPa) 0.20±0.01 0.20±0.01 0.19±0.03 0.20±0.02 0.19±0.03 0.20±0.02 0.20±0.01
E/H 74.50±3.41 75.00±4.29 77.90±2.79 74.00±2.76 77.90±4.73 75.00±1.96 75.00±2.47
Tb.L E (GPa) 23.72±2.11 23.50±2.64 23.58±1.89 23.16±2.13 23.20±2.29 23.65±3.01 23.15±1.74
H (GPa) 1.24±0.03 1.23±0.11 1.20±0.10 1.13±0.09 1.15±0.03 1.19±0.10 1.21±0.06
E/H 19.37±2.12 19.15±1.71 19.72±1.22 20.39±1.59 20.05±2.85 19.87±1.97 19.40±2.18
Ct.L E (GPa) 30.20±2.94 30.20±3.15 30.20±2.76 30.40±2.18 30.60±3.31 30.10±2.87 30.80±2.09
H (GPa) 1.49±0.12 1.49±0.09 1.49±0.04 1.49±0.01 1.49±0.01 1.49±0.04 1.50±0.10
E/H 20.34±1.86 20.20±1.43 20.34±0.98 20.54±1.03 20.54±2.10 20.20±1.74 20.53±1.35

n = 7 values per group. Sample thickness is 2 mm. Values are shown as the median±SE. Tb.T - transverse trabecular bone; Tb.L - longitudinal trabecular bone; Ct.L - longitudinal cortical bone; E - elastic modulus; H - hardness; E/H - ratio of elastic modulus and hardness.