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The average and difference in thickness of the ligamentum flavum (LFthi) on the right (dx) and left side (sin) in unloaded and axially loaded subjects
| Vertebral level | N | LFthi dx (mm) | LFthi dx load (mm) | Relative difference (%) | Significance | LFthi sin (mm) | LFthi sin load (mm) | Relative difference (%) | Significance |
|---|---|---|---|---|---|---|---|---|---|
| L3/L4 | 23 | 4.3 | 4.7 | 9 | 0.000 | 4.9 | 5.2 | 6 | 0.000 |
| L4/L5 | 24 | 4.8 | 5.2 | 8 | 0.000 | 5.3 | 5.9 | 10 | 0.000 |
| All levels | 50 | 4.6 | 5.0 | 9 | 0.000 | 5.1 | 5.5 | 8 | 0.000 |
