Evaluation of the effects of geometrical changes in prosthetic socket towards transfemoral residuum via finite element method

Mohd Syahmi Jamaludin, Yukio Agarie, Akihiko Hanafusa, Hiroshi Otsuka, Shinichirou Yamamoto, Kengo Onishi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This study investigated the effect of prosthetic socket shape on the transfemoral residuum by using the finite element method. The effect of two Ischial-ramal-containment sockets (MCCT and UCLA) was evaluated during the donning process by predicting the qualitative measurement in a simulation. The simulation, mimicking the actual donning process, was done by creating a finite element model of residuum and socket based on the MRI image of subject`s residuum with and without socket. The change of contact surface pressure and geometry of the residuum were observed in the cross-section area along 170 mm from the distal end. A high correlation coefficient of pressure was recorded between experiment and simulation (0.976) with a mean error of 4.93% in UCLA case. The simulation results also showed that the maximum pressure of residuum in MCCT socket was higher than that in UCLA. The highest changes of soft tissue area occurred at the edge of both sockets—6.03% and 6.06% of increment for MCCT and UCLA respectively. The existence of pressure at the measuring point changed the residuum geometry, increasing 11.32% and 7.24% residuum length for UCLA and MCCT respectively. Our result will help the engineer and prosthetist to understand the residuum behavior during donning process. Moreover, it may help in modifying the socket shape to offer better comfort to the subject.

Original languageEnglish
Title of host publication2018 IEEE EMBS Conference on Biomedical Engineering and Sciences, IECBES 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages314-319
Number of pages6
ISBN (Electronic)9781538624715
DOIs
Publication statusPublished - 2019 Jan 24
Event2018 IEEE EMBS Conference on Biomedical Engineering and Sciences, IECBES 2018 - Kuching, Malaysia
Duration: 2018 Dec 32018 Dec 6

Publication series

Name2018 IEEE EMBS Conference on Biomedical Engineering and Sciences, IECBES 2018 - Proceedings

Conference

Conference2018 IEEE EMBS Conference on Biomedical Engineering and Sciences, IECBES 2018
CountryMalaysia
CityKuching
Period18/12/318/12/6

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Keywords

  • Donning phase
  • Finite element method
  • IRC socket
  • Transfemoral residuum

ASJC Scopus subject areas

  • Biomedical Engineering
  • Medicine (miscellaneous)
  • Health Informatics
  • Instrumentation

Cite this

Jamaludin, M. S., Agarie, Y., Hanafusa, A., Otsuka, H., Yamamoto, S., & Onishi, K. (2019). Evaluation of the effects of geometrical changes in prosthetic socket towards transfemoral residuum via finite element method. In 2018 IEEE EMBS Conference on Biomedical Engineering and Sciences, IECBES 2018 - Proceedings (pp. 314-319). [8626703] (2018 IEEE EMBS Conference on Biomedical Engineering and Sciences, IECBES 2018 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IECBES.2018.8626703