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Table 2 Operative Measures
| Open surgical | Minimally invasive | P-value | |||
|---|---|---|---|---|---|
| Fusion | Fusion | ||||
| N | Mean (SD) | N | Mean (SD) | ||
| Operating room time | 100 | 163 (25) | 63 | 70 (24) | <.0001 |
| Estimated blood loss | 138 | 288 (182) | 66 | 33 (27) | <.0001 |
| Hospital length of stay | 137 | 5.1 (1.9) | 30 | 1.3 (0.5) | <.0001 |
