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International Journal of Bioprinting Mechanically biomimicking 3D bone model

Figure 9. Three-dimensional modeling and printing of patient-specific implant with the conformed interface at the upper surface of Female L4 and Male
L4 vertebrae. Red boxes indicate the conformed features of the interface.

Figure 10. (A) Mimicry of stiffness and failure load of Male L4 natural vertebra by controlling infill parameters of D and D (mean ± SD and n = 5).

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(B) Load–displacement curves of natural and artificial vertebra models under implant compression. (C) Load–displacement curves of artificial vertebra
models compressed by patient-specific (3D printed) and commercial implants. (D) Geometries of implant–vertebra interfaces of commercial and patient-
specific implants.
properties of stiffness and failure load under implant bone models based on CT data of cadavers, we mimicked
compression. The desired properties of artificial bones the natural vertebrae for both appearance and mechanical
could be achieved by optimizing the infill variation properties. To test the feasibility of the developed artificial
parameters. By applying the infill variation to 3D-printed bone model, we fabricated patient-specific implants with

Volume 10 Issue 1 (2024) 428 https://doi.org/10.36922/ijb.1067