Computational modelling of foot orthosis for midfoot arthritis: a Taguchi approach for design optimization

• Autorzy: Zhang Haowei , Liv Miko Lin , Yang Junyan , Cheung James Chung-Wai , Sun Wanju , Wong Duo Wai-Chi , NI Ming

Identyfikatory

DOI

10.37190/ABB-01694-2020-03

• Języki publikacji: EN

Abstrakty

EN

Evaluation of the internal biomechanics of the foot-and-ankle complex is challenging for the prescription of orthosis particularly for midfoot arthritis patients in which the joint condition is crucial. Methods: Using computational modeling and design optimization techniques, the objective of this study was to compare the biomechanical functions among different combinations of design factors using computer simulation. A finite element foot model was reconstructed from a midfoot arthritis patient. Orthotic designs with 3 levels for each of the 3 design factors (arch height, lateral wedge angle, and insole stiffness) contributed to 9 configurations using a fractional factorial design were tested. Results: An increase in peak plantar stress of the midfoot was facilitated by a medium arch height and wedge angle, and stiffest insole material, notwithstanding the combination neither reduced the peak plantar stress of other foot regions nor was consistent with the combination that minimized the stress of the articular cartilage. Conclusions: Insole with high arch (H = 30 mm), low stiffness (E = 1.0 MPa), and medium wedge angle (A = 5) could minimize the stress of the cartilage at the arthritic joint (primary outcome) and could be beneficial to the patients. Also, insole stiffness predominantly influenced cartilage stress. However, secondary outcomes including the stress of the navicular and medial cuneiform and the regional plantar stress did not produce the same solution. Future studies can consider a patient-specific loading profile to further the investigation on the stabilizing effect and the attenuation of load transfer induced by the insole.

Słowa kluczowe

EN

finite element simulation; foot and ankle model; posttraumatic arthritis; cuneonavicular joint

PL

symulacja elementów skończonych; model stopy i stawu skokowego; pourazowe zapalenie stawów; staw klinowo-łopatkowy

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Acta of Bioengineering and Biomechanics
• Rocznik: 2020
• Tom: Vol. 22, no. 4
• Strony: 75--83
• Opis fizyczny: Bibliogr. 25 poz., tab., rys.

Twórcy

autor

Zhang Haowei

• School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China

autor

Liv Miko Lin

• Department of Orthopaedics, Shanghai Pudong New Area People’s Hospital, Shanghai University of Medicine and Health Sciences, Shanghai, China

autor

Yang Junyan

• School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China

autor

Cheung James Chung-Wai

• Department of Biomedical Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, Hong Kong, China

autor

Sun Wanju

• Department of Orthopaedics, Shanghai Pudong New Area People’s Hospital, Shanghai University of Medicine and Health Sciences, Shanghai, China

autor

Wong Duo Wai-Chi

• Department of Biomedical Engineering, Faculty of Engineering, The Hong Kong Polytechnic University, Hong Kong, China

autor

NI Ming

• School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China

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