Table 3.
Angular rotation and sagittal translation of various lumbar levels on X-ray examination
| Lumbar vertebrae (levels) | AR (degrees) on flexion/extension | ST (percentage) on flexion/extension | AR (degrees) in neutral position | ST (percentage) in neutral position |
|---|---|---|---|---|
| L1-L2 | 9.2+5.02 | 1.34+1.86 | 5.54+4.53 | 0.88+1.42 |
| L2-L3 | 7.76+4.87 | 1.82+2.82 | 6.98+3.97 | 1.1+2.14 |
| L3-L4 | 9.78+5.91 | 2.41+3.43 | 6.44+4.53 | 1.6+2.67 |
| L4-L5 | 9.36+6.67 | 1.86+2.81 | 6.12+6 | 1.16+2.05 |
| L5-S1 | 13.78+10.34 | 2.92+3.71 | 7.47+5.79 | 2.08+3.03 |
AR - Angular rotation; ST - Sagittal translation