Table 2.
Comparison of surgical results between PVP vs PKP groups in patients with severe OVCF
| Outcomes | PVP
|
PKP
|
||||||
|---|---|---|---|---|---|---|---|---|
| Preoperative | 1 day after surgery | 1 year after surgery | Last follow-up | Preoperative | 1 day after surgery | 1 year after surgery | Last follow-up | |
|
| ||||||||
| VAS score | 7.3±1.1 | 2.1±1.1a | 1.5±1.1a,b | 1.7±1.0a,b | 6.9±1.2 | 2.3±1.2a | 1.6±1.0a,b | 1.6±1.1a,b |
| ODI score | 75.5±10.2 | 28.5±10.4a | 22.4±8.4a,b | 23.5±8.5a,b | 71.7±9.2 | 29.8±10.1a | 23.7±8.3a,b | 24.2±8.6a,b |
| Local kyphotic angle (°) | 30.4±3.6 | 25.7±3.1a | 26.0±2.9a | 26.5±3.0a | 29.6±3.3 | 19.1±3.3a,c | 19.4±3.4a,c | 20.1±3.5a,c |
| Anterior height of vertebrae fractured (mm) | 8.5±1.1 | 8.7±1.1 | 8.6±1.1 | 8.6±1.0 | 8.6±1.1 | 12.5±2.9a,c | 12.4±2.8a,c | 12.2±2.7a,c |
Notes:
a
Significant difference between preoperative and postoperative using paired t-test; P<0.05.
b
Significant difference between 1 day after surgery and last follow-up using paired t-test; P<0.05.
c
Significant difference between two groups using independent two-sample t-test; P<0.05.
Abbreviations: OVCF, osteoporotic vertebral compression fracture; ODI, Oswestry disability index; PKP, percutaneous kyphoplasty; PVP, percutaneous vertebroplasty; VAS, visual analog scale.