Table 1.
Bone volume and bone mass density of bone graft and empty chambers
| Variable | Day 7 | Day 21 | Day 36 | Day 70 |
|---|---|---|---|---|
| Bone volume (mm3) | ||||
| Bone graft | 1436.0 ± 185.3 | 1036.8 ± 246.0† | 531.7 ± 77.9*,‡ | 50.8*,‡,‖ |
| Empty | 135.0 ± 129.4* | 195.2 ± 178.0‡ | 2.9 ± 2.8§ | 1.6 |
| Bone density (mg/cm3) | ||||
| Bone graft | 628.0 ± 6.1 | 646.2 ± 17.1 | 667.7 ± 42.3 | 708.1 |
| Empty | 165.3 ± 65.4 | 212.7 ± 6.5 | 116.4 ± 45.0 | 177.2 |
Values are expressed as mean ± standard error of the mean; * p < 0.0001, †p < 0.01, as compared to bone graft at Day 7; ‡p < 0.001, as compared to bone graft at Day 21; §p < 0.0001, ‖p < 0.01, as compared to bone graft at Day 36.