Table 3 Comparison between the loosening group and non-loosening group
Parameters | Loosening | Non-loosening | P value |
|---|---|---|---|
Gender (M/F) | 16/43 | 5/29 | 0.168 |
Age (year) | 64.0 ± 6.1 | 62.7 ± 5.2 | 0.276 |
BMI (kg/m2) | 25.5 ± 4.2 | 26.4 ± 4.2 | 0.354 |
Lumbar T value | − 0.8 ± 1.5 | − 1.1 ± 1.6 | 0.434 |
Cobb angle (°) | 27.2 ± 9.2 | 23.6 ± 9.9 | 0.078 |
Number of fused segments | 5.7 ± 1.4 | 5.2 ± 1.2 | 0.075 |
Operation time (min) | 277.4 ± 66.6 | 258.4 ± 51.4 | 0.154 |
Blood loss (ml) | 1142.5 ± 551.8 | 1180.9 ± 822.2 | 0.431 |
Hospital stay (day) | 13.1 ± 8.1 | 11.7 ± 4.1 | 0.782 |
Lumbosacral fixation (YES/NO) | 37/22 | 19/15 | 0.517 |
Proximal segments (T/TL/L) | 10/42/7 | 4/23/7 | 0.469 |
Sagittal parameters | |||
SVA (mm) | 59.4 ± 43.4 | 49.3 ± 28.5 | 0.180 |
PI (°) | 47.3 ± 10.0 | 49.6 ± 11.3 | 0.308 |
PT (°) | 23.5 ± 10.3 | 23.9 ± 10.5 | 0.861 |
SS (°) | 23.8 ± 8.9 | 25.7 ± 10.8 | 0.351 |
LL (°) | 24.9 ± 14.8 | 26.7 ± 17.4 | 0.604 |
TK (°) | 21.6 ± 13.1 | 20.0 ± 10.9 | 0.535 |
PI-LL (°) | 22.4 ± 16.4 | 22.9 ± 15.6 | 0.876 |