Table 1.
Static histomorphometric parameters and microdamage measured in three-dimensional images as well as apparent biomechanical properties are shown (n=9 specimens).
| Mean ± SD | Median (25th,75th Percentiles) |
|
|---|---|---|
| Bone Volume Fraction (BV / TV) | 6.75 ± 2.45 % | 6.08 (5.71, 7.67) % |
| Percent Eroded Surface (ES / BS) | 5.10 ± 1.75 % | 5.27 (4.61, 6.33) % |
| Bone Specific Surface (BS/TV, µm−1) | 1.77 ± 0.50 | 1.75 (1.42, 2.00) |
| Trabecular Thickness (Tb.Th, µm) | 132 ± 22.2 | 135 (121, 140) |
| Trabecular Separation (Tb.Sp, µm) | 1,020 ± 217 | 960 (884, 1,050) |
| Degree of Anisotropy (DA) | 1.48 ± 0.12 | 1.49 (1.42, 1.61) |
| Structure Model Index (SMI) | 1.70 ± 0.60 | 1.52 (1.37, 2.19) |
| Connectivity Density (Conn.D, mm−1) | 4.84 ± 2.26 | 5.55 (1.37, 2.19) |
| Number of Microdamage Sites | 130 ± 51.4 | 111 (81, 172) |
| Number of Microdamage Sites per Bone Volume (mm−3) | 22.6 ± 10.1 | 21.2 (15.2, 24.0) |
| Median Microdamage Site Volume (µm3) | 57,600 ± 31,300 | 48,700 (41,100, 57,200) |
| Average Microdamage Site Surface to Volume Ratio (DS/DV, µm−1) | 601 ± 44.5 | 592 (569, 605) |
| Damage Volume per Bone Volume (DV / BV) | 0.77 ± 0.33% | 0.70 (0.65, 1.01) % |
| Elastic Modulus (MPa) | 232 ± 36.7 | 220 (211, 235) |
| Yield Stress (MPa) | 1.19 ± 0.26 | 1.11 (1.06, 1.25) |
| Yield Strain | 0.75 ± 0.04 % | 0.74 (0.71, 0.79) % |
| Residual Strain | 0.14 ± 0.03 % | 0.14 (0.12, 0.14) % |