| L4/5 | L5S1 | ||||||
---|---|---|---|---|---|---|---|---|
Degeneration | No change | Â | p value | Degeneration | No change | Â | p value | |
Age (y) | 26.29 ± 5.38 | 22.23 ± 4.24 | 2.278 | 0.027* | 23.22 ± 4.82 | 22.67 ± 4.56 | 0.331 | 0.742 |
BMI | 23.37 ± 0.59 | 22.72 ± 1.06 | 1.572 | 0.122 | 23.49 ± 0.81 | 22.67 ± 1.03 | 2.225 | 0.030* |
Fixed time (m) | 25.86 ± 8.86 | 15.72 ± 4.98 | 4.495 | 0.000* | 25.56 ± 4.67 | 15.33 ± 5.39 | 5.297 | 0.000* |
Vertebral slip (no.) | Â | Â | 0.000 | 1.000 | Â | Â | 1.922 | 0.166 |
Yes | 3 | 17 | Â | Â | 1 | 19 | Â | Â |
No | 4 | 30 | Â | Â | 8 | 26 | Â | Â |
Facet grade pre-operation | Â | Â | 0.614 | 0.852 | Â | Â | 3.569 | 0.389 |
Grade 4 | 1 | 13 | Â | Â | 1 | 10 | Â | Â |
Grade 3 | 5 | 27 | Â | Â | 4 | 17 | Â | Â |
Grade 2 | 1 | 7 | Â | Â | 3 | 10 | Â | Â |
Grade 1 | 0 | 0 | Â | Â | 1 | 8 | Â | Â |
Grade 0 | 0 | 0 | Â | Â | 0 | 0 | Â | Â |
Disc grade pre-operation | Â | Â | 2.934 | 0.317 | Â | Â | 6.404 | 0.145 |
Grade 1 | 1 | 11 | Â | Â | 1 | 12 | Â | Â |
Grade 2 | 2 | 26 | Â | Â | 6 | 16 | Â | Â |
Grade 3 | 2 | 7 | Â | Â | 0 | 12 | Â | Â |
Grade 4 | 2 | 7 | Â | Â | 2 | 4 | Â | Â |
Grade 5 | 0 | 0 | Â | Â | 0 | 1 | Â | Â |