Table 4 Univariate analysis for the occurrence of cement leakage in the spinal canal
Features | Other = 95 | Spinal canal = 18 | P |
|---|---|---|---|
Previous chemo/radiotherapy | Â | Â | 0.092 |
 No | 49 (51.6%) | 9 (50.0%) |  |
 Yes | 46 (48.4%) | 9 (50.0%) |  |
Tomita classification | Â | Â | 0.739 |
 Slow | 25 (26.3%) | 4 (22.2%) |  |
 Moderate | 10 (10.5%) | 3 (16.7%) |  |
 Rapid | 60 (63.2%) | 11 (61.1%) |  |
Post-OP chemo/radiotherapy | Â | Â | 0.359 |
 No | 22 (23.2%) | 6 (33.3%) |  |
 Yes | 73 (76.8%) | 12 (66.7%) |  |
Other metastasis | Â | Â | 0.736 |
 No | 62 (65.3%) | 11 (61.1%) |  |
 Yes | 33 (34.7%) | 7 (38.9%) |  |
Vertebra level | Â | Â | 0.789 |
 Thoracic | 39 (41.1%) | 8 (44.4%) |  |
 Lumbar | 56 (58.9%) | 10 (55.6%) |  |
Collapse | Â | Â | 0.962 |
 No | 58 (61.7%) | 11 (61.1%) |  |
 Yes | 36 (38.3%) | 7 (38.9%) |  |
Posterior wall destruction | Â | Â | 0.001 |
 No | 15 (15.8%) | 9 (50.0%) |  |
 Yes | 80 (84.2%) | 9 (50.0%) |  |
Injected laterality | Â | Â | 0.019 |
 Single | 38 (40.0%) | 2 (11.1%) |  |
 Bilateral | 57 (60.0%) | 16 (88.9%) |  |
Injected volume | 4.50 (3.00–6.00) | 6.00 (4.00–7.12) | 0.020 |