Table 4.
Patient Related Outcome Measures for the three individual post-operative LDI-groups as mean (SD) and absolute numbers (percentage).
| LDI | Normolordotic | Hypolordotic | Hyperlordotic | p | p* | p# |
|---|---|---|---|---|---|---|
| ΔODI | −14.2 (17.9) | −16.9 (21.1) | −15.4 (26.4) | 0.819 | 0.744 | 0.914 |
| ODI MCID | 37 (52.9 %) | 24 (57.1 %) | 7 (50.0 %) | 0.863 | 0.659 | 0.845 |
| ΔVAS-legs | −28.8 (39.2) | −29.1 (37.0) | −20.9 (39.4) | 0.793 | 0.994 | 0.529 |
| VAS-legs MCID | 36 (51.4 %) | 19 (45.2 %) | 6 (42.9 %) | 0.742 | 0.526 | 0.558 |
| ΔVAS-back | −29.5 (31.8) | −30.1 (28.9) | −36.5 (33.8) | 0.772 | 0.951 | 0.420 |
| VAS-back MCID | 41 (58.6 %) | 26 (61.9 %) | 8 (57.1 %) | 0.924 | 0.728 | 0.921 |
| ΔEQ-5D | 0.18 (0.30) | 0.17 (0.26) | 0.25 (0.22) | 0.636 | 0.968 | 0.361 |
| MCID EQ-5D | 22 (37.3 %) | 18 (46.2 %) | 6 (50.0 %) | 0.576 | 0.382 | 0.411 |
p: ANOVA, all three groups.
p*: Pairwise test. Mann–Whitney U, normolordotic compared to hypolordotic.
p#: Pairwise test. Mann–Whitney U, normolordotic compared to hyperlordotic.
Abbreviations: MCID: Minimal Clinical Important Difference, ODI: Oswestry Disability Index, VAS: Visual analog Scale, EQ-5D: European Quality of Life – 5 Dimensions Questionnaire.