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. 2022 Apr 14;12(4):581.
doi: 10.3390/life12040581.

Musculoskeletal Modeling of the Wrist via a Multi Body Simulation

Jörg Eschweiler  1 , Maximilian Praster  1 , Valentin Quack  1 , Roman Michalik  1 , Frank Hildebrand  1 , Björn Rath  2 , Filippo Migliorini  1   3
Affiliations

Musculoskeletal Modeling of the Wrist via a Multi Body Simulation

Jörg Eschweiler et al. Life (Basel). .

Abstract

In this study, three different musculoskeletal modeling approaches were compared to each other. The objective was to show the possibilities in the case of a simple mechanical model of the wrist, using a simple multi-body-simulation (MBS) model, and using a more complex and patient-specific adaptable wrist joint MBS model. Musculoskeletal modeling could be a useful alternative, which can be practiced as a non-invasive approach to investigate body motion and internal loads in a wide range of conditions. The goal of this study was the introduction of computer-based modelling of the physiological wrist with (MBS-) models focused on the muscle and joint forces acting on the wrist.

Keywords: MBS; biomechanics; modeling; total wrist arthroplasty.

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Conflict of interest statement

The authors declared no potential conflict of interest concerning the research, authorship, and/or publication of this article.

Figures

Figure 1
Figure 1
Motion of the wrist in the FE-plane.
Figure 2
Figure 2
Free body diagram for the change of the lever arm of the summarized flexor muscles in case of wrist extension with a load of 100 N applied to the third metacarpal bone. D is the lever arm of the applied load, (A) is the lever arm of the summarized flexor muscles, and (A′) is the new lever arm depending on the angle of extension of the wrist.
Figure 3
Figure 3
Calculating the joint reaction force of the wrist joint concerning the position of itself with an applied force of 100 N during wrist extension.
Figure 4
Figure 4
Wrist model of the AnyBody simulation system from a lateral view.
Figure 5
Figure 5
(A) Complex wrist model developed in the AnyBody simulation including the ligamentous apparatus. (B) Same model with muscles (adapted based on [16,17]).
Figure 6
Figure 6
Results of the summarized flexor muscle forces for different external torques concerning the extension angle of the wrist. This is the same for the summarized flexor muscles as for the summarized extensor muscles for the movements during FE.
Figure 7
Figure 7
Resulting external part of the joint forces separated in x- and y-direction concerning the motion angle of the wrist. These are just the resulting joint forces based on the external load of 100 N applied to the third metacarpal. The influence of the muscle forces is still missing.
Figure 8
Figure 8
This figure shows the resulting muscle forces during FE motion with an external load of 100 N applied to the third metacarpal.
Figure 9
Figure 9
The figure shows the resulting muscle forces during RUD motion with an external load of 100 N applied to the third metacarpal.
Figure 10
Figure 10
Resulting joint forces during FE motion with an external load of 100 N applied to the third metacarpal.
Figure 11
Figure 11
Resulting joint forces during RUD motion with an external load of 100 N applied to the third metacarpal.
Figure 12
Figure 12
Muscle forces during FE-simulation with an applied load of 100 N to the third metacarpal bone (modified after [16]).
Figure 13
Figure 13
Muscle forces during RUD-simulation with an applied load of 100 N to the third metacarpal bone (modified after [16]).
See this image and copyright information in PMC

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