Patient variables and outcomes (N = 117).
| Variable | Mean (SD) or n | Min | Max |
| Follow-up, d | 126 (64) | 90 | 387 |
| Men | 63 | ||
| Women | 54 | ||
| Age, y | 59 (11) | 28 | 91 |
| Body mass index | 31 (6) | 19 | 51 |
| Smoker | 23 | ||
| Prior surgery at index level | 12 | ||
| Estimated blood loss, mLa | 52 (101) | 5 | 950 |
| Length of surgery, min | 72 (35) | 26 | 215 |
| Postoperative dismissal time, min | 123 (36) | 69 | 294 |
| Perioperative complicationsb | 0 | ||
| 30-d readmission | 0 | ||
| Subsequent lumbar spine fusion | 0 | ||
| VAS score | |||
| Preoperative | 6.2 (2.3) | ||
| Postoperative | 3.1 (2.8) | ||
| ∆ | 3.1c | ||
| Reduction | 50% | ||
| ODI | |||
| Preoperative | 46.7 (13.5) | ||
| Postoperative | 24.7 (19.0) | ||
| ∆ | 22.0c | ||
| Reduction | 47% |
Abbreviations: ODI, Oswestry Disability Index; VAS, visual analog scale.
aEstimated blood loss not recorded in one patient.
bExcessive blood loss not requiring transfusion in one patient.
cP < 0.001.