Abstract
Recent technologies have suggested the utilization of three-dimensional (3D) printing technology to enhance the fabrication accuracy of prosthetics. Accordingly, simulations are used to obtain precise parameters for subject-specified prosthetic socket. This study proposes an evaluation system to measure the accuracy of a subject-specific 3D transfemoral residuum model during the interaction with the socket in conjunction with the application of finite element methods. The proposed system can be used in future validations of socket fabrication. The evaluation is based on the measurement of the residuum's soft tissue deformation inside two types of prosthetic sockets. In comparison with other studies, the 3D models were constructed with magnetic resonance images (MRI) with the aid of computer-aided design (CAD) software. The measurement of soft tissue deformation was conducted based on the measurement of the volumetric value of fat, muscle and skin in the pre- and post-donning phases. The result yielded a promising correlation coefficient value between the simulation and the experiment in the soft tissue deformation evaluation. The relation of the muscle-fat ratio in the residuum is extremely important in the determination of the ability of the prosthetic to deform. The environment during the socket fitting session was similar to that defined by the set boundary conditions in simulations. In view of the promising results of this study, the evaluation system proposed herein is considered reliable and is envisaged to be used in future research.
| Original language | English |
|---|---|
| Article number | 3662 |
| Journal | Applied Sciences (Switzerland) |
| Volume | 9 |
| Issue number | 18 |
| DOIs | |
| Publication status | Published - 2019 Sep 1 |
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Keywords
- 3D model
- Biomechanics
- Bipedal stances
- Finite element analysis
- Finite element method
- Prosthetic socket
- Transfemoral residuum
ASJC Scopus subject areas
- Materials Science(all)
- Instrumentation
- Engineering(all)
- Process Chemistry and Technology
- Computer Science Applications
- Fluid Flow and Transfer Processes
Cite this
Development of an evaluation system for magnetic resonance imaging based three-dimensional modeling of a transfemoral prosthetic socket using finite elements. / Jamaludin, Mohd Syahmi; Hanafusa, Akihiko; Yamamoto, Shinichirou; Agarie, Yukio; Otsuka, Hiroshi; Ohnishi, Kengo.
In: Applied Sciences (Switzerland), Vol. 9, No. 18, 3662, 01.09.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Development of an evaluation system for magnetic resonance imaging based three-dimensional modeling of a transfemoral prosthetic socket using finite elements
AU - Jamaludin, Mohd Syahmi
AU - Hanafusa, Akihiko
AU - Yamamoto, Shinichirou
AU - Agarie, Yukio
AU - Otsuka, Hiroshi
AU - Ohnishi, Kengo
PY - 2019/9/1
Y1 - 2019/9/1
N2 - Recent technologies have suggested the utilization of three-dimensional (3D) printing technology to enhance the fabrication accuracy of prosthetics. Accordingly, simulations are used to obtain precise parameters for subject-specified prosthetic socket. This study proposes an evaluation system to measure the accuracy of a subject-specific 3D transfemoral residuum model during the interaction with the socket in conjunction with the application of finite element methods. The proposed system can be used in future validations of socket fabrication. The evaluation is based on the measurement of the residuum's soft tissue deformation inside two types of prosthetic sockets. In comparison with other studies, the 3D models were constructed with magnetic resonance images (MRI) with the aid of computer-aided design (CAD) software. The measurement of soft tissue deformation was conducted based on the measurement of the volumetric value of fat, muscle and skin in the pre- and post-donning phases. The result yielded a promising correlation coefficient value between the simulation and the experiment in the soft tissue deformation evaluation. The relation of the muscle-fat ratio in the residuum is extremely important in the determination of the ability of the prosthetic to deform. The environment during the socket fitting session was similar to that defined by the set boundary conditions in simulations. In view of the promising results of this study, the evaluation system proposed herein is considered reliable and is envisaged to be used in future research.
AB - Recent technologies have suggested the utilization of three-dimensional (3D) printing technology to enhance the fabrication accuracy of prosthetics. Accordingly, simulations are used to obtain precise parameters for subject-specified prosthetic socket. This study proposes an evaluation system to measure the accuracy of a subject-specific 3D transfemoral residuum model during the interaction with the socket in conjunction with the application of finite element methods. The proposed system can be used in future validations of socket fabrication. The evaluation is based on the measurement of the residuum's soft tissue deformation inside two types of prosthetic sockets. In comparison with other studies, the 3D models were constructed with magnetic resonance images (MRI) with the aid of computer-aided design (CAD) software. The measurement of soft tissue deformation was conducted based on the measurement of the volumetric value of fat, muscle and skin in the pre- and post-donning phases. The result yielded a promising correlation coefficient value between the simulation and the experiment in the soft tissue deformation evaluation. The relation of the muscle-fat ratio in the residuum is extremely important in the determination of the ability of the prosthetic to deform. The environment during the socket fitting session was similar to that defined by the set boundary conditions in simulations. In view of the promising results of this study, the evaluation system proposed herein is considered reliable and is envisaged to be used in future research.
KW - 3D model
KW - Biomechanics
KW - Bipedal stances
KW - Finite element analysis
KW - Finite element method
KW - Prosthetic socket
KW - Transfemoral residuum
UR - http://www.scopus.com/inward/record.url?scp=85072370801&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85072370801&partnerID=8YFLogxK
U2 - 10.3390/app9183662
DO - 10.3390/app9183662
M3 - Article
AN - SCOPUS:85072370801
VL - 9
JO - Applied Sciences (Switzerland)
JF - Applied Sciences (Switzerland)
SN - 2076-3417
IS - 18
M1 - 3662
ER -