Table 8.
Comparison of postoperative radiographic data between low-screw density and high-screw density groups
| Variable | LD group (n=57) | HD group (n=65) | p-value |
|---|---|---|---|
| Postoperative major Cobb angle (°) | 18.2±6.4 | 18.3±7.8 | 0.93 |
| Postoperative T2–T12 kyphosis angle (°) | 33.4±8.6 | 30.1±8.5 | 0.03* |
| Postoperative rib index | 1.5±0.2 | 1.6±0.2 | 0.15 |
| Percent major curve correction | 67.07±11.5 | 67.47±11.8 | 0.86 |
| Correction index | 1.4±0.4 | 1.5±0.5 | 0.31 |
| Change in T2–T12 kyphosis angle (°) | −1 (−19 to 14) | −4 (−16 to 9) | 0.13 |
| Percent rib index correction | 18.4±9.1 | 16.5±8.1 | 0.36 |
| Loss-correction rate (%) | 3.33 (0 to 22) | 5.17 (0 to 32) | 0.24 |
Values are presented as mean±standard deviation or median (range), unless otherwise stated.
LD, low-screw density; HD, high-screw density.
*
p<0.05 was considered to be statistical significance.