Purpose We aimed to investigate the relationship between thoracic alignment asymmetry and side-to-side differences in femoral head deviation. Participants and Methods Twenty-six healthy adults participated in this study. We used three-dimensional motion analysis and ultrasonography to measure changes in femoral head deviation during isometric hip rotation and examine the relationship between thoracic alignment asymmetry and side-to-side differences. Results We observed that the femoral head deviated anteriorly during external rotation and posteriorly during internal rotation. At rest, the femoral head showed greater anterior deviation on the left side compared to the right. Task-induced femoral head deviation changes were greater on the right during external rotation and greater on the left during internal rotation. Moreover, we observed a positive correlation between the lower thoracic shape asymmetry and resting femoral head deviation. Conclusion Our findings suggest that lower thoracic asymmetry is associated with side-to-side differences in resting femoral head deviation and is potentially mediated through kinematic chain interactions.
SANO et al. (Thu,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: