Table 2.
Patient age group (years) | p value | ||
---|---|---|---|
18–45 | 46–85 | ||
n | 89 | 187 | |
Operative data available (%) | 84 (94) | 186 (99) | |
Anterior procedure (%) | 18 (21) | 89 (48) | <0.001 |
Mean levels (SD, range) | 4 (2, 2–7) | 4 (2, 2–11) | |
Posterior procedure (%) | 76 (90) | 184 (99) | 0.002 |
Mean levels (SD, range) | 11 (3, 3–18) | 11 (4, 2–18) | |
Fusion to the sacro-pelvis (%) | 15 (17) | 88 (47) | <0.001 |
Mean operating room time, h (SD, range) | 7.3 (3.0, 2.0–17.5) | 8.6 (3.3, 1.0–19.0) | 0.002 |
Mean estimated blood loss, L (SD, range) | 1.0 (0.8, 0.1–4.5) | 1.8 (1.4, 0.2–6.5) | <0.001 |
Minor complication (%) | 11 (13) | 65 (35) | <0.001 |
Major complication (%) | 4 (5) | 47 (25) | <0.001 |
SD standard deviation