52-271
Diseño y posicionado de la prótesis inversa de hombro utilizando técnicas de simulación numérica por método de los elementos finitos y biomodelos realizados por impresión 3D
Design and positioning of the reverse shoulder prosthesis using numerical simulation techniques by finite element method and biomodels made by 3D printing
J. Salvador Marín, L. Piles Cabo, J. M. Segui Ripoll, S. Sánchez Caballero, M. J. Reig Pérez, R. Pla Ferrando, S. Ferrándiz Bou, V. J. Seguí Llinares, J. F. Martínez López
Recepción:
09/03/2018
Aceptación:
09/03/2018
Publicación:
09/03/2018
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Resumen (ES)
To analyze the positioning and orientation of a reverse shoulder prostheses in the scapula, and to improve its anchorage and adaptation using numerical simulation techniques trough finite element methodology (FEM) and biomodels by 3D printing. Methods. A 3D-virtual biomodel is generated by the CT of a male patient of 70 kg and load in a 4,2 kg arm, operated with RSA. The base plate-scapula is studied by FEM software simulating the mechanical behavior, comparing the intervention against eccentricity conditions of 4 mm and lateralization of 5 mm. The tensions and deformations performed on the interface are analyzed. Results. A reduction of the mechanical stress in the base plate of 23.7% is obtained. A guide-centering device, designed using the 3D printing modeling technique, is designed. Conclusion. The FEM modeling and analysis of the patients personalized shoulder morphology and 3D biomodel help optimum preoperative planning. Printing 3D guides can improve the positioning and anchoring of the RSA base plate.
Palabras clave (ES):
Estudio
Biodinámico
Planificación
operatoria
Hombro
Elementos
Modelo
Inversa
Prótesis
Finitos
Impresión
3D
Resumen (EN)
To analyze the positioning and orientation of a reverse shoulder prostheses in the scapula, and to improve its anchorage and adaptation using numerical simulation techniques trough finite element methodology (FEM) and biomodels by 3D printing. Methods. A 3D-virtual biomodel is generated by the CT of a male patient of 70 kg and load in a 4,2 kg arm, operated with RSA. The base plate-scapula is studied by FEM software simulating the mechanical behavior, comparing the intervention against eccentricity conditions of 4 mm and lateralization of 5 mm. The tensions and deformations performed on the interface are analyzed. Results. A reduction of the mechanical stress in the base plate of 23.7% is obtained. A guide-centering device, designed using the 3D printing modeling technique, is designed. Conclusion. The FEM modeling and analysis of the patients personalized shoulder morphology and 3D biomodel help optimum preoperative planning. Printing 3D guides can improve the positioning and anchoring of the RSA base plate.
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