Table 2.
Surgical characteristics for 909 adults who underwent surgery for spinal deformity.
|
Parameter |
Not Transfused (N = 532) |
Transfused (N = 377) |
P
Value |
||
|
N (%) |
Mean |
N (%) |
Mean |
||
| EBL, mL | 894 ± 752 | 2377 ± 1736 | < .0001 | ||
| EBL/vertebral level fused, mL | 115 ± 106 | 237 ± 232 | < .0001 | ||
| Percent blood volume lost, % | 18.8 ± 15.2 | 50.7 ± 35.5 | < .0001 | ||
| Intraoperative cell salvage, U | 0.46 ± 0.91 | 2.2 ± 2.4 | < .0001 | ||
| Mirza invasiveness index | 18.0 ± 7.6 | 23.8 ± 8.4 | < .0001 | ||
| Number of levels fused | 8.9 ± 3.8 | 11.5 ± 4.3 | < .0001 | ||
| Surgical duration, h | 5.9 ± 2.4 | 7.4 ± 4.4 | < .0001 | ||
| Pelvic fixation | 85 (16) | 203 (54) | < .0001 | ||
| 3-column osteotomy | 34 (6) | 83 (22) | < .0001 | ||
| Posterior column osteotomy | 160 (30) | 219 (58) | < .0001 | ||
| TLIF | 91 (17) | 167 (44) | < .0001 | ||
| ALIF | 14 (3) | 18 (5) | .08 | ||
| Tranexamic acid use | 183 (34) | 206 (55) | < .0001 | ||
| Multirod (> 2) configuration | 16 (3) | 44 (12) | < .0001 | ||
| Length of hospital stay, d | 5.6 ± 4.0 | 7.4 ± 3.9 | < .0001 | ||
| Unplanned return to operating room | 21 (4) | 46 (12) | < .0001 | ||
Abbreviations: ALIF, anterior lumbar interbody fusion; TLIF, transforaminal lumbar interbody fusion.