Table 1.
Estimated vertebral strength and stiffness by FEA based on standard and bone reconstruction kernels.
| Kernel | Osteoporosis | Osteopenia | Normal bone mass | All subjects | ||||
|---|---|---|---|---|---|---|---|---|
| B40f | B70f | B40f | B70f | B40f | B70f | B40f | B70f | |
| Strength (N) | 5,602.0 | 6,120.8 | 6,531.6 | 7,308.6 | 7,324.3 | 8,155.4 | 6,457.5 | 7,482.8 |
| Mean absolute difference | −518.7 | −777.0 | −831.0 | −702.8 | ||||
| Mean percent difference | −9.7 | −11.7 | −11.1 | −10.7 | ||||
| p-value | 0.003 | 0.000 | 0.000 | 0.000 | ||||
| Stiffness (N\mm) | 5,561.0 | 6,356.6 | 9,720.2 | 10,715.2 | 11,549.1 | 12,839.7 | 8,834.3 | 9,853.9 |
| Mean absolute difference | −704.6 | −994.9 | −1,290.5 | −1,213 | ||||
| Mean percent difference | −14.0 | −9.7 | −11.2 | −12.0 | ||||
| p-value | 0.000 | 0.001 | 0.024 | 0.000 | ||||
Absolute values are presented as average, absolute, and percent mean differences, and p-values were calculated from paired t-tests.