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Mechanical properties at the whole bone and tissue (fracture toughness) levels.
| Mechanical property | Wild-type | MMP-13−/− | p-value |
|---|---|---|---|
| Structural stiffness [N/mm] | 134 ± 14.9 | 154 ± 19.5 | 0.82 |
| Ultimate load [N] | 0.11 ± 0.05 | 0.13 ± 0.04 | 0.77 |
| Post-yield deflection [mm] | 0.17 ± 0.09 | 0.21 ± 0.11 | < 0.001 |
| Post-yield work-to-fracture [mJ] | 24.5 ± 1.55 | 16.9 ± 1.35 | < 0.001 |
| Fracture toughness [MPa√m] | 4.54 ± 0.15 | 3.59 ± 0.43 | < 0.001 |
Significant values are noted in bold.
