Multimodal Bio-mechanical Analysis of Adult Spinal Deformity With Sagittal Plane Misalignment

The use of EOS stereo radiographic analysis and health related quality of life scores to measure the distance of the center of acoustic meati in the transversal plane with respect to the gravity line

The use of clinical postural tests and instrumented movement analysis to evaluate the importance of muscle fatigue and compensation mechanisms

The use of EOS stereo radiographic imaging and motion analysis to understand the compensation mechanisms in trunk, pelvis and lower limbs and the correlation between primary and secondary mechanisms.

Repeated measurements of the different aspects of the dynamic evaluation protocol (strenght measurements of trunk muscles, balance evaluation and movement analysis) will serve to evaluate the test-retest reliability and intra-rater reliability of the different protocols