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3DP PEEK implants for chest wall reconstruction
A B C

D E F

G H I

Figure 8. The 3DP PEEK implants of horizontal type (A), E type and (B), vertical type and (C), corresponding chest wall reconstruction
surgery images. The 3DP PEEK implants for whole sternum (D), manubrium sterni, and (E) mesosternum (F) defect, and corresponding chest
wall reconstruction surgery images. The incision ulcer and 3DP PEEK implant exposure. (G) After the surgery (the black circle point out the
PEEK implant). The displacement of 3DP PEEK implant in the rib (H and I) residues (the white circle points out the displacement part).
deposition, the interface problem between lines will forming will make the polymer chain of the polymer
cause the mechanical properties (especially the fracture material align in a highly oriented direction along the
elongation) along the printing line to be higher than printing path, which will greatly improve the tensile and
in other directions. In addition, the extrusion mobile extension performance of the material in this direction,

232 International Journal of Bioprinting (2022)–Volume 8, Issue 4