Fig. 1. Architecture of the 3D-printed vertebral corpus and cervical fusion cage (intervertebral disc, IVD): (a) apparent shape of the 3D-printed structure, (b–d) demonstration of the main dimensions of the design, and (e and f) Cura slicer images of the final porous construction of the 3D-scaffold with different pores patterns; honeycomb (H) or grid (G), before printing.