| Anterior (n = 12) | Posterior (n = 13) | p value |
---|---|---|---|
Age (years) | 65.8 ± 5.2 | 65.4 ± 11.1 | 0.917 |
Elapsed time to a diagnosis (days) | 89 ± 43 | 46 ± 16 | 0.015* |
VAS | Â | Â | Â |
  Preoperative   12 months after OP | 6.9 ± 1.4 1.33 ± 0.9 | 7.0 ± 1.4 1.54 ± 1.1 | 0.885 0.605 |
Blood loss (ml) | 933 ± 576 | 700 ± 370 | 0.236 |
OP time (minutes) | 274 ± 102 | 163 ± 52 | 0.002* |
Hospital stay (days) | 35 ± 15 | 23 ± 8 | 0.003* |
Fusion status | Â | Â | Â |
  Solid union   Partial union   Pseudarthrosis | 10 2 0 | 11 1 1 |  |