Table 3. Comparison on relative spinal dimensions of vertebrae and discs in the lumbar spine (L1-L5) in AIS subgroups and normal controls.
| Primary thoracic curves (Lenke 1–4) L1-L5 (n = 86) | Secondarythoracic curves (Lenke 5–6) L1-L5 (n = 19) | Normal controls L1-L5 (n = 11) | P ANOVA (between all 3 groups) | P Lenke 1–4 versus Lenke 5–6 | P Lenke 1–4 versus Controls | P Lenke 5–6 versus Controls | |
|---|---|---|---|---|---|---|---|
| Vertebra Rhw | 0.63 ± 0.05 | 0.62 ± 0.05 | 0.57 ± 0.09 | <0.01 | 0.22 | <0.05 | <0.05 |
| Vertebra Rhd | 0.89 ± 0.08 | 0.88 ± 0.12 | 0.79 ± 0.09 | <0.01 | 0.48 | <0.01 | <0.01 |
| Vertebra Rwd | 1.40 ± 0.08 | 1.42 ± 0.09 | 1.39 ± 0.08 | 0.65 | 0.26 | 0.33 | 0.21 |
| Disc Rhw | 0.20 ± 0.02 | 0.20 ± 0.03 | 0.19 ± 0.03 | 0.95 | 0.47 | 0.42 | 0.45 |
| Disc Rhd | 0.28 ± 0.02 | 0.28 ± 0.03 | 0.27 ± 0.05 | 0.84 | 0.38 | 0.40 | 0.36 |
| Disc Rwd | 1.39 ± 0.08 | 1.41 ± 0.10 | 1.37 ± 0.09 | 0.49 | 0.20 | 0.32 | 0.17 |
Statistically significant results, p < 0.05 are shown in bold.