Table 1.
Characteristics of the three retrospective cohort studies
| Author, year, location | Study design | Number of patients | Operative time (min) | bleeding volume (ml) | VAS score | ODI score | Local vertebral Cobb angle | Cement leakage | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PKP | SSF + VP | PKP | SSF + VP | PKP | SSF + VP | PKP | SSF + VP | PKP | SSF + VP | PKP | SSF + VP | PKP | SSF + VP | ||
| Liang Chen, 2015, China | Retrospective cohort | 31 | 23 | 76 (60–95) | 128 (95–165) | Minimal | 245 |
Pre7.8 ± 0.9 POM 3.3 ± 1.0 Fin 2.9 ± 0.9 |
Pre7.2 ± 1.6 POM 4.7 ± 1.3 Fin 3.5 ± 1.2 | ND | ND |
Pre 22.7 ± 6.9 POM 14.5 ± 5.3 Fin 15.5 ± 5.2 |
Pre 24.7 ± 9.2 POM 15.5 ± 6.2 Fin 15.8 ± 5.6 |
11 | 5 |
| Yan-Sheng Huang, 2018, China | Retrospective cohort | 32 | 28 | 43.1 ± 7.1 | 115.9 ± 10.0 | 9.9 ± 2.7 | 214.3 ± 17.5 |
Pre 8.1 ± 0.8 POM 2.8 ± 0.8 Fin 2.9 ± 1.2 |
Pre 8.0 ± 0.9 POM 3.8 ± 0.7 Fin 2.7 ± 1.3 |
Pre 75.3 ± 5.0 Fin 34.4 ± 5.0 |
Pre 74.4 ± 5.1 Fin 33.1 ± 4.4 |
Pre 22.9 ± 3.9 POM 14.5 ± 3.8 Fin 15.1 ± 4.6 |
Pre 22.6 ± 5.9 POM 13.6 ± 3.9 Fin 14.0 ± 4.4 |
3 | 3 |
| Hou-Kun Li, 2017, China | Retrospective cohort | 25 | 21 | 43.2 ± 21.8 | 230.6 ± 87.1 | 5.3 ± 3.1 | 215.0 ± 170.2 |
Pre 8.1 ± 0.8; POM 2.8 ± 0.8 Fin 2.9 ± 1.2 |
Pre 7.0 ± 1.4 POM 1.6 ± 0.9 Fin 1.2 ± 0.9 |
Pre 72.5 ± 10.0 Fin 27.2 ± 9.0 |
Pre 77.5 ± 10.6 Fin 26.0 ± 6.3 |
Pre 22.8 ± 7.4 POM 14.9 ± 8.2 Fin 17.0 ± 7.2 |
Pre 21.7 ± 3.6 POM 15.0 ± 6.7 Fin 16.5 ± 2.8 |
2 | 1 |
Abbreviations: PKP percutaneous kyphoplasty, SSF short-segmental fixation, VP vertebroplasty, VAS visual analog scale, ODI Oswestry Disability Index, Pre preoperative, POM postoperative 1 month, Fin final follow-up, ND no data