Table 2.
Reproducibility estimators for main spinal and pelvic parameters (calculated for a 95% confidence interval) [3]
| Parameter | Reproducibility estimator | Units |
|---|---|---|
| Sagittal standing X-ray films analysis | ||
| Superior endplate inclination | 3 | deg |
| Vertebral wedging | 4 | deg |
| Disc height | 3 | mm |
| Disc/vertebra height ratio | 10 | % |
| Listhesis | 8 | % |
| Fused segment lordosis | 4 | deg |
| Lumbar and L1S1 lordosis | 4 | deg |
| Sacral slope | 4 | deg |
| Pelvic version | 1.2 | deg |
| Pelvic incidence | 3.4 | deg |
| Lumbar flexion-extension X-ray films analysis | ||
| Range of motion | 2 | deg |
| MCR coordinates | 15 | % |