A quasi-dynamic nonlinear finite element model to investigate prosthetic interface stresses during walking for trans-tibial amputees | QUT ePrints QUT Home Contact Home Browse About Login A quasi-dynamic nonlinear finite element model to investigate prosthetic interface stresses during walking for trans-tibial amputees Jia, Xiaohong, Zhang, Ming, Li, Xiaobing, & Lee, Winson (2005) A quasi-dynamic nonlinear finite element model to investigate prosthetic interface stresses during walking for trans-tibial amputees. Clinical Biomechanics, 20(6), pp. 630-635. Preview PDF (176kB) 4341.pdf. View at publisher Description Background. To predict the interface pressure between residual limb and prosthetic socket for trans-tibial amputees during walking. Methods. A quasi-dynamic finite element model was built based on the actual geometry of residual limb, internal bones and socket liner. To simulate the friction/slip boundary conditions between the skin and liner, automated surface-to-surface contact was used. Besides variable external loads and material inertia, the coupling between the large rigid displacement of knee joint and small elastic deformation of residual limb and prosthetic components were also considered. Results. Interface pressure distribution was found to have the same profile during walking. The high pressures fall over popliteal depression, middle patella tendon, lateral tibia and medial tibia regions. Interface pressure predicted by static or quasi-dynamic analysis had the similar double-peaked waveform shape in stance phase. Interpretation. The consideration of inertial effects and motion of knee joint cause 210% average variation of the area between the pressure curve and the horizontal line of pressure threshold between two cases, even though there is only a small change in the peak pressure. The findings in this paper show that the coupling dynamic effects of inertial loads and knee flexion must be considered to study interface pressure between residual limb and prosthetic socket during walking. Impact and interest: 38 citations in Scopus 27 citations in Web of Science® Search Google Scholar™ Citation counts are sourced monthly from Scopus and Web of Science® citation databases. These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards. Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search. Notify us of incorrect data How to use citation counts More information Full-text downloads: 746 since deposited on 29 Jun 2007 44 in the past twelve months Full-text downloads displays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one. More statistics... ID Code: 4341 Item Type: Contribution to Journal (Journal Article) Refereed: Yes Measurements or Duration: 6 Keywords: Finite Element Analysis, Inertial Loads, Interface Pressure, Knee Flexion, Prosthetic Socket DOI: 10.1016/j.clinbiomech.2005.03.001 ISSN: 0268-0033 Pure ID: 34308783 Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering ?? 1411 ?? Copyright Owner: Consult author(s) regarding copyright matters Copyright Statement: This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au Deposited On: 29 Jun 2007 00:00 Last Modified: 25 Aug 2021 15:12 Export: EndNote | Dublin Core | BibTeX Repository Staff Only: item control page Home Browse research About CRICOS No. 00213J ABN 83 791 724 622 Accessibility Copyright Disclaimer Privacy Right to Information
