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Abstract Objective: To investigate a three-dimensional finite element model from CT image of human wrist joint and calculate the stress distribution, in expecting to develop biomechanical analysis of wrist joint with finite element method. Method: We searched 1 normal adult male for our subject. His right wrist joint was scanned with CT. After getting the image data, we use the software Mimics10.01 to develop a three-dimensional finite element model. Following setting material properties of the model in software ANSYS10.0, we can simulate biomechanical test. The stress distribution on each bone of wrist joint was observed under axial compression. Result: The finite element model has been successfully developed; including the distal end of radius and ulna, carpal, metacarpal, the proximal end of phalanges, TFCC and so on. We also got the map of stress distribute. Conclusion: Base on CT image，medical imaging processing software and three-dimensional reconstruction software, the threedimension model of wrist joint can be quickly completed accurately. Moreover, we can calculate the stress distribution under axial compression. The model provided technical support for finite element analysis of wrist joint and virtual hand modeling.
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Received: 26 November 2012
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2013, Vol. 23 
