Perioperative data for 1- and 2-level disc replacements
| Operative parameters | 1 Level (n = 12) | 2 Levels(n = 18) |
|---|---|---|
| Estimated blood loss (mL) | 33.7 ± 17.4 | 66.8 ± 24.9 |
| Operative time (min) | 67.1 ± 21.4 | 128.6 ± 31.8 |
| Hospital stay (d) | 1.1 ± 0.3 | 1.4 ± 0.8 |
NOTE. Values are mean ± standard deviation.