3 months | 6 months | 12 months | Last FU | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Fusion | Non-fusion | p | Fusion | Non-fusion | p | Fusion | Non-fusion | p | Fusion | Non-fusion | p | ||
Relative position | Cranial levels | 31 (26.27%) | 87 (73.72%) | 0.0024 | 69 (58.47%) | 49 (41.53%) | 0.0191 | 102 (86.44%) | 16 (13.56%) | 0.4739 | 109 (92.37%) | 9 (7.63%) | 0.6484 |
Caudal levels | 12 (10.17%) | 106 (89.83%) | 50 (42.37%) | 68 (57.63%) | 97 (82.20%) | 21 (17.80%) | 106 (89.83%) | 12 (10.17%) | |||||
PRE-segment slope (°) | 15.47 ± 4.787 | 18.42 ± 4.962 | 0.0005 | 16.69 ± 4.356 | 19.06 ± 5.406 | 0.0003 | 17.38 ± 4.704 | 20.67 ± 5.942 | 0.0002 | 17.57 ± 4.756 | 21.20 ± 6.702 | 0.0016 | |
PRE-ROM (°) | 6.604 ± 3.044 | 7.224 ± 3.841 | 0.3225 | 6.860 ± 3.327 | 7.366 ± 4.062 | 0.2957 | 7.056 ± 3.582 | 7.408 ± 4.381 | 0.5972 | 7.058 ± 3.679 | 7.658 ± 4.074 | 0.4802 | |
PRE-disk height (mm) | 4.71 ± 1.29 | 4.66 ± 1.09 | 0.7929 | 4.71 ± 1.17 | 4.62 ± 1.09 | 0.5395 | 4.70 ± 1.02 | 4.50 ± 1.00 | 0.3137 | 4.67 ± 1.15 | 4.68 ± 0.96 | 0.9753 |