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14.11.2022 | Innovation

Des spécialiste du Centre, en collaboration avec l'HEPIA, ont participé à la publication d'un article portant sur un dispositif électromagnétique qui mesure la mobilité dorsale relative de la colonne interne du pied.

PD Dr Mathieu Assal, Dr Victor Dubois-Ferrière, Dr Antoine Acker et Dr Nils Reymond ont participé à la publication d'un article, en collaboration avec une équipe de l'HES-SO HEPIA (Haute École Du Paysage, D'ingénierie Et D'architecture De Genève), Quentin PrazSpyridon Schoinas and Philippe Passeraube. La publication démontre la capacité du dispositif à mesurer de manière fiable la mobilité dorsale de la colonne interne du pied. Il s'agit d'une étape nécessaire à la quantification et la qualification de l'hypermobilité du premier rayon du pied.

 

│Abstract│

Introduction: A new electromechanical instrument has been developed to measure relative dorsal mobility of the first ray in an objective and reliable way by simulating ground reaction forces during gait. This device equally applies a standardized, electronically controlled, and precise force under the first metatarsal head M1 as well as under the heads of the lesser metatarsals M2 to M5. The relative dorsal mobility between these two bearings is then measured. The purpose of this study is to assess the intra- and inter-examiners reliabilities of the measurements obtained with this device. Methods: The protocol included two examiners and 36 feet (18 volunteers with healthy feet and no history of forefoot disorders). A total of nine measurements were performed on each foot separated into three sets of three trials for the assessment of inter-rater and intra-rater reliability. For this purpose, the interclass correlation coefficient (ICC), the error of measurement (SEM) and the Bland and Altman (B&A) graphical analysis were computed. Results: Excellent ICC values (≥0.91) were obtained with the novel device for inter-rater and intra-rater reliability when using the FRRM calculation. The B&A analysis presented a bias between examiners of -0.25 mm ranging from -1.66 to 1.18 mm. Conclusion: This study demonstrated the capability of the developed device to reliably measure the relative dorsal mobility of the first ray of the foot. This is a promising first step for further studies to better understand, qualify and quantify first ray hypermobility.

 

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