Table 4.
Histomorphometry indices of the apical vertebral trabecular bones (mean ± standard deviation)
| Variables | Convex | Concave | P‐value | t‐value |
|---|---|---|---|---|
| BV/TV (%) | 0.33 ± 0.02 | 0.26 ± 0.02 | 0.024 | 3.375 |
| Tb.N (1/mm) | 4.88 ± 0.19 | 4.40 ± 0.17 | 0.013 | 6.023 |
| Tb.Th (mm) | 0.08 ± 0.01 | 0.07 ± 0.00 | 0.130 | 1.960 |
| Tb.Sp (mm) | 0.19 ± 0.01 | 0.21 ± 0.01 | 0.027 | 3.286 |
| SMI | 0.36 ± 0.25 | 0.83 ± 0.20 | 0.062 | 0.1440 |
BV/TV, bone volume fraction (fraction of trabecular bone per total volume); Tb.N, trabecular number (number of trabeculation per mm); Tb.Th, trabecular thickness (trabecular thickness); Tb.Sp, trabecular separation (distance of each trabeculation); SMI, structure model index (index referring to the plate‐like or rod‐like structure of trabeculation).