Table 2.
Osteocyte lacunar properties in fracturing and non-fracturing women of five pairs of samples. The position of lacunae-near was within the 5 μm distance from each lacunar edge. The distance between “near” and “far” was around 10 μm. (Mean ± Std).
| Control Median (IQd range) |
Case Median (IQd range) |
|
|---|---|---|
| Modulus | 12.42 (5.092–21.95) | 13.29 (9.88–23.19) a |
| Modulus variance | 0.195 (0.095–0.621) | 0.240(0.085–0.699) |
| Hardness | 0.595 (0.241–0.893) | 0.809 (0.563–0.941) a |
| Hardness variance | 0.241(0.102–0.700) | 0.229(0.112–0.414) |
| Lacunae-near | ||
| Mineral matrix (area) | 1.303 (0.997–1.601) c | 1.056 (0.845–1.250) a |
| Mineral matrix variance (area) | 0.188(0.141–0.379) | 0.267(0.162–0.304) |
| Mineral maturity and crystallinity (area) | 1.084 (0.892–1.160) | 0.848 (0.769–1.055) a |
| Mineral maturity and crystallinity Variance (area) | 0.076 (0.051–0.164) | 0.094 (0.064–0.165) |
| Mineral matrix (peak) | 0.754 (0.630–1.048) | 0.651 (0.4916593–0.831) a |
| Mineral matrix variance (peak) | 0.180(0.132–0.405) | 0.251(0.167–0.337) |
| Mineral maturity and crystallinity (peak) | 1.233 (0.999–1.384) b | 1.010 (0.857–1.145) a |
| Mineral maturity and crystallinity Variance (peak) | 0. 054(0.046–0.114) | 0.127(0.099–0.186) a |
| Lacunae-far | ||
| Mineral matrix (area) | 1.196 (0.889–1.460) | 1.062 (0.859–1.335) |
| Mineral matrix variance (area) | 0.233(0.153–0.317) | 0.179(0.138–0.033) |
| Mineral maturity and crystallinity (area) | 1.075 (0.872–1.205) | 0.827 (0.772–1.021) a |
| Mineral maturity and crystallinity Variance (area) | 0.078(0.059–0.199) | 0.104(0.083–0.151) |
| Mineral matrix (peak) | 0.711 (0.554–0.859) | 0.667 (0.476–0.952) |
| Mineral matrix variance (peak) | 0.262(0.153–0.494) | 0.205(0.137–0.305) |
| Mineral maturity and crystallinity (peak) | 1.214 (0.987–1.356) | 0.952(0.833–1.063) a |
| Mineral maturity and crystallinity variance (peak) | 0.112(0.088–0.137) | 0.138(0.072–0.222) |
Mean ± std.
a
Difference between Case and Controls, P < 0.05.
b
Difference between “near” and “far” lacunae (within each group), P < 0.05.
c
Difference between “near” and “far” lacunae (within each group), P < 0.1.
d
IQ-interquartile range (25th percentile – 75th percentile).