Standard deviation of reproducibility in measurement of intervertebral displacement with use of EOS system in X-Y′-Z″ mobile sequence of axes for control group (kinematics based on 3D reconstructions of vertebrae)
| X | Y′ | Z″ | |
|---|---|---|---|
| Extension | 2.0° | 1.2°* | 1.7° |
| Flexion | 1.6° | 1.5°* | 1.6° |
| Right lateral bending | 2.6°* | 2.6° | 3.1° |
| Left lateral bending | 2.3°* | 3.0° | 4.2° |
| Right axial torsion | 2.2° | 2.5° | 3.0°* |
| Left axial torsion | 2.7° | 2.2° | 3.1°* |
↵* Main motion.