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Clinical Outcomes for the Overall Registry Population.
| Preoperative | 1 Year Postoperative | Paired t-test (p) | |
| ODI | 47.1 ± 16.9 (n = 98) | 28.8 ± 21.2 (n = 84) | 0.001 |
| VAS Back | 6.5 ± 2.6 (n = 98) | 3.2 ± 2.7 (n = 84) | 0.001 |
| VAS Affected Leg | 5.3 ± 2.8 (n = 98) | 1.7 ± 2.6 (n = 84) | 0.001 |
| Preoperative | 6 Months Postoperative | Paired t-test (p) | |
| SF-12 MCS | 42.0 ± 15.5 (n = 282) | 48.2 ± 17.4 (n = 77) | 0.05 |
| SF-12 PCS | 28.2 ± 9.8 (n = 282) | 37.0 ± 15.3 (n = 77) | 0.001 |
