| n | Maintained walking capacity group (n = 191) | n | Deteriorated walking capacity group (n = 93) | P |
---|---|---|---|---|---|
Patient background | |||||
 Age, years |  | 74.3 ± 6.2 |  | 74.6 ± 6.4 | 0.78 |
 Gender (male / female), n |  | 111 / 80 |  | 64 / 29 | 0.08 |
 Height, cm | 185 | 158.4 ± 9.7 | 85 | 159.3 ± 9.6 | 0.36 |
 Weight, kg | 186 | 55.0 ± 10.0 | 87 | 57.5 ± 10.9 | 0.07 |
Pre-trauma walking capacity, n | |||||
 Independent / T-cane / walker |  | 183 / 6 / 2 |  | 86 / 6 / 1 | 0.35 |
Charlson comorbidity index | 189 | 0.5 ± 1.0 | 89 | 0.6 ± 0.9 | 0.20 |
Blood test data, g /dL | |||||
 Albumin | 156 | 3.8 ± 0.5 | 87 | 3.6 ± 0.6 |  < 0.01* |
 Hemoglobin | 188 | 12.9 ± 1.9 | 84 | 12.3 ± 1.8 | 0.02* |
Level of fracture, n (%) | |||||
 C1‒2 |  | 71 (37) |  | 22 (24) | 0.02* |
 C3‒5 |  | 59 (31) |  | 41 (44) | 0.03* |
 C6‒7 |  | 86 (45) |  | 42 (45) | 0.98 |
Facet interlocking, n (%) | Â | 53 (28) | Â | 28 (30) | 0.68 |
ASIA Impairment Scale, n (%) |  |  |  |  |  < 0.01* |
 A / B / C / D / E |  | 0 / 0 / 15 (8) / 57 (30)/ 119 (62) |  | 15 (16) / 11 (12) / 25 (27) / 15 (16) / 27 (29) |  |
Comorbid major organ injury, n (%) | Â | 16 (8) | Â | 14 (15) | 0.09 |
Surgery | |||||
 Anterior / Posterior / Combined, n (%) |  | 20 (10) / 164 (86) / 7 (4) |  | 7 (8) / 84 (90) / 2 (2) | 0.56 |
 Number of fused segments |  | 2.1 ± 1.6 |  | 2.6 ± 1.9 | 0.01* |
 Occipitocervical fusion, n (%) |  | 8 (4) |  | 7 (8) | 0.18 |
 Surgical bleeding, mL | 176 | 187 ± 220 | 86 | 291 ± 363 | 0.01* |
 Surgical time, min | 181 | 168 ± 72 | 83 | 176 ± 60 | 0.25 |
Walking capacity 1Â year postoperatively, n | |||||
 Independent / T-cane / walker / inability to walk |  | 184 / 6 / 1 / 0 |  | 0 / 32 / 33 / 28 |  |