Identification of the most relevant intervertebral effort indicators during gait of adolescents with idiopathic scoliosis

Samadi B, Raison M, Achiche S and Fortin C

Computer Methods in Biomechanics and Biomedical Engineering, 2020, vol. 23, issue 10, 664-674

Abstract: The intervertebral efforts, i.e., forces and torques, during gait have been recognized as influencing the progression of scoliosis, due to the mechanical modulations according to the Hueter-Volkmann Law. Therefore, these efforts are key variables for posture correction and to control the progression of scoliosis. Using the intervertebral efforts during gait for the clinical follow-ups has never been performed. For this, it would be necessary to identify amongst all these efforts the most relevant ones, which is the objective of this study. A previously developed dynamical model of the human body was used to compute the 3 D intervertebral efforts during the gait of 15 participants with adolescent idiopathic scoliosis (AIS) and 12 typically developed adolescents (TDA). Kolmogorov-Smirnov and Two-sample t-test were applied on the calculated intervertebral efforts and the graphs of intervertebral efforts were studied. Antero-posterior (AP) forces and torques and medio-lateral (ML) forces are the most relevant intervertebral efforts amongst the other efforts in adolescents with AIS during gait. Discussion: Gait analysis in adolescents with AIS based on the relevant intervertebral efforts could be an effective means to follow-up and evaluate the progression of scoliosis during their treatment period. This study highlights the most relevant intervertebral efforts of individuals with AIS during gait. As future work, the identified intervertebral efforts could be implemented in a quantified and visual feedback tool for therapeutic and performance evaluation or interactive sessions in physiotherapy, e.g., via video games for dynamic posture self-correction.

Date: 2020
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DOI: 10.1080/10255842.2020.1758075

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