Bone resorption (n = 29) | Nobone resorption (n = 15) | p | |
---|---|---|---|
L4 spinous process | |||
Height | |||
Baseline | 83.0 ± 9.7 | 81.8 ± 8.7 | .698 |
1 week | 77.5 ± 9.3 | 76.6 ± 11.0 | .776 |
1 year | 71.2 ± 11.2 | 69.4 ± 11.9 | .635 |
Significant resorptiona | 5 (17.2) | 0 (0.0) | .149 |
Length | |||
Baseline | 54.6 ± 7.4 | 57.2 ± 7.4 | .279 |
1 week | 50.5 ± 8.3 | 51.7 ± 8.0 | .654 |
1 year | 40.4 ± 10.1 | 46.7 ± 8.1 | .042* |
Significant resorptiona | 17 (58.6) | 0 (0.0) | .001* |
Thickness | |||
Baseline | 13.2 ± 2.7 | 13.1 ± 2.2 | .871 |
1 week | 12.4 ± 2.6 | 12.1 ± 2.7 | .725 |
1 year | 11.1 ± 2.5 | 11.5 ± 2.7 | .604 |
Significant resorptiona | 7 (24.1) | 0 (0.0) | .077 |
L5 spinous process | |||
Height | |||
Baseline | 73.9 ± 11.2 | 70.3 ± 11.8 | .319 |
1 week | 67.6 ± 11.3 | 64.3 ± 10.9 | .358 |
1 year | 56.0 ± 11.5 | 57.4 ± 10.4 | .699 |
Significant resorptiona | 11 (37.9) | 0 (0.0) | .008* |
Length | |||
Baseline | 42.5 ± 10.6 | 46.1 ± 7.6 | .244 |
1 week | 37.3 ± 10.2 | 41.4 ± 6.6 | .167 |
1 year | 25.6 ± 6.9 | 37.2 ± 7.3 | <.001* |
Significant resorptiona | 21 (72.4) | 0 (0.0) | <.001* |
Thickness | |||
Baseline | 12.6 ± 2.9 | 11.4 ± 2.7 | .182 |
1 week | 11.9 ± 2.8 | 10.3 ± 2.8 | .094 |
1 year | 10.0 ± 2.1 | 9.7 ± 2.9 | .704 |
Significant resorptiona | 12 (41.4) | 0 (0.0) | .003* |