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Progression of compression of treated vertebrae
| Immediate postvertebroplasty | One year after vertebroplasty | Two years or more after vertebroplasty | |
|---|---|---|---|
| Compression ratio* | 68.65 ± 6.71 | 60.98 ± 9.52 | 59.03 ± 11.19 |
| Difference of compression ratio* | 7.6 ± 6.8 | 1.9 ± 2.9 |
*P < 0.05
