Table 1.
Patient demographics (PVP and PKP groups)
| Variables | Total (57 cases) | PVP (31 cases) | PKP (26 cases) | t/c2 value | P-value |
|---|---|---|---|---|---|
|
| |||||
| Age (years)a | 75.0±6.4 | 74.8±5.6 | 75.3±7.3 | 0.292 | 0.771 |
| Sexb | |||||
| Men | 23 (40.4%) | 12 | 11 | 0.076 | 0.783 |
| Women | 34 (59.6%) | 19 | 15 | ||
| BMI (kg/m2)a | 24.7±4.1 | 24.9±4.5 | 24.4±3.7 | 0.452 | 0.653 |
| BMD (T-score)a | –3.5±0.6 | –3.6±0.5 | –3.4±0.6 | 1.373 | 0.175 |
| Duration of disease (months)a | 2.6±1.7 | 2.8±1.8 | 2.4±1.6 | 0.879 | 0.383 |
| Vertebral compression (%)a | 73.3±4.3 | 73.4±4.1 | 73.1+4.5 | 0.263 | 0.793 |
| Operative levelsb | |||||
| T8–T9 | 10 (17.5%) | 5 | 5 | 0.179 | 0.914 |
| T10–T12 | 28 (49.1%) | 15 | 13 | ||
| L1–L2 | 19 (33.3%) | 11 | 8 | ||
| Operation time (minutes)a | 33.2±3.7 | 29.6±3.3 | 37.4±4.2 | 7.851 | 0.000∗ |
| Cement volume (mL)a | 3.2±1.0 | 2.8±0.8 | 3.6±1.1 | 3.173 | 0.002∗ |
| Adjacent-level fractureb | 5 (8.8%) | 3/31 | 2/26 | 0.070 | 0.792 |
| Cement leakageb | 15 (26.3%) | 7/31 | 8/26 | 0.489 | 0.484 |
| Average length of stay (days)a | 2.1±1.0 | 2.1±1.0 | 2.2±0.9 | 0.393 | 0.695 |
| Follow-up (years)a | 2.7±0.6 | 2.6±0.5 | 2.8±0.7 | 1.255 | 0.215 |
Note:
a
Independent two-sample t-test;
b
chi-square test;
*
P<0.05.
Abbreviations: BMD, bone mineral density; BMI, body mass index; PKP, percutaneous kyphoplasty; PVP, percutaneous vertebroplasty.