Table 2.
Treatment information.
| Characteristic | Statistic n = 40 |
|---|---|
| Mean initial positioning time (anesthesia to incision) (mins.) (range) | 32 (18–57) |
| Mean anterior procedure time (incision to anterior close/completion) (mins) (range) | 57 (24–145) |
| Mean repositioning time (for second procedures) (mins) (range) | 27 (0–82)* |
| Mean second procedure time (incision/fixation start to final close) (mins) (range) | 73 (6–205)* |
| Mean total procedure time (anterior and fixation) (mins) (range) | 122 (49–274) |
| Mean total operating room time (mins) (range) | 178 (49–342) |
| Mean anterior procedure estimated blood loss (EBL) (cc) (range) | 47 (10–110) |
| Total number of levels treated | 68 |
| Mean number of levels per patient (range) | 1.7 (1–3) |
| Levels treated | n (% of levels) |
| L1-L2 | 3 (4) |
| L2-L3 | 11 (16) |
| L3-L4 | 18 (26) |
| L4-L5 | 29 (43) |
| L5–S1 (TLIF) | 7 (10) |
| Supplemental internal fixation (%) | 40 (100) |
| Lateral plating (%) | 11 (38) |
| Bilateral pedicle screws (%) | 25 (63) |
| Direct decompression | |
| Yes (%) | 13 (33) |
| No (%) | 27 (67) |
| Biologics used | |
| Osteocel Plus | 40 (100) |
*In lateral plating following XLIF, repositioning time is zero, as the XLIF exposure is used for placement. Lateral plating also accounts for short second-procedure times in the range. Longer second-procedure times include, in some cases, posterior lumbar interbody fusion at L5–S1 and multilevel posterior fixation, which accounts for the high variability.