Author/Authors :
Figueroa-Cavazos, J. Obedt Tecnologico de Monterrey - Escuela de Ingenier´ıa y Ciencias, Monterrey, NL, Mexico , Flores-Villalba, Eduardo Tecnologico de Monterrey - Escuela de Ingenier´ıa y Ciencias, Monterrey, NL, Mexico , Diaz-Elizondo, José A. Tecnologico de Monterrey - Escuela de Medicina, Monterrey, NL, Mexico , Martínez-Romero, Oscar Tecnologico de Monterrey - Escuela de Ingenier´ıa y Ciencias, Monterrey, NL, Mexico , Rodríguez, Ciro A. Tecnologico de Monterrey - Escuela de Ingenier´ıa y Ciencias, Monterrey, NL, Mexico , Siller, Héctor R. Tecnologico de Monterrey - Escuela de Ingenier´ıa y Ciencias, Monterrey, NL, Mexico
Abstract :
This work explores the viability of 3D printed intervertebral lumbar cages based on biocompatible polycarbonate (PC-ISO material). Several design concepts are proposed for the generation of patient-specific intervertebral lumbar cages. The 3D printed material achieved compressive yield strength of 55 MPa under a specific combination of manufacturing parameters. The literature recommends a reference load of 4,000 N for design of intervertebral lumbar cages. Under compression testing conditions, the proposed design concepts withstand between 7,500 and 10,000 N of load before showing yielding. Although some stress concentration regions were found during analysis, the overall viability of the proposed design concepts was validated.
