3D printing personalized customization artificial vertebral body and preparation method thereof
A 3D printing and vertebral body technology, applied in the field of spinal vertebral body reconstruction, can solve problems such as complications in the donor area, immune rejection, and slow replacement of allogeneic bone, so as to promote bone tissue ingrowth, enhance mechanical locking, Good long-term fixative effect
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[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0020] see figure 1 , 2, the present invention comprises the porous spindle type artificial vertebral body that is hollow, the height of both ends is transparent and the distance between the normal vertebral body endplates adjacent to the defective vertebral body is equal, and the porous structure 8 adopts a regular dodecahedron structure or a small bone Beam structure, the diameter of both ends of the vertebral body is 2mm-4mm smaller than the outer diameter of the normal vertebral body endplate adjacent to the diseased vertebra; the diameter of the middle section of the vertebral body is 25%-35% smaller than the endplates at both ends and is connected with the two ends to form a streamline Body, the aperture of the porous spindle-shaped artificial vertebral body is 0.4mm-0.6mm, the wire diameter is 0.25mm-0.4mm, and the porosity is 55%-75%. 2mm upper and l...
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