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Surgical data
| Parameter | Overall |
|---|---|
| Levels treated, n (%) | |
| L1 | 6 (3.5) |
| L2 | 22 (12.9) |
| L3 | 43 (25.1) |
| L4 | 52 (30.4) |
| L5 | 42 (24.6) |
| S1 | 6 (3.5) |
| Number of levels treated | |
| 2 | 19 (34.5) |
| 3 | 16 (29.1) |
| 4 | 16 (29.1) |
| 5 | 3 (5.5) |
| 6 | 1 (1.8) |
| Mean estimated blood loss, n (SD) (cc) | 117.4 |
| Mean operative time, n (SD) (min) | 155.7 (42.0) |
| Mean length of hospital stay, n (SD) (days) | 2.9 (1.3) |
| Workflow, n (%) | |
| Intraoperative CT | 41 (74.5) |
| Preoperative CT | 14 (25.5) |
