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. Author manuscript; available in PMC: 2017 Nov 1.
Published in final edited form as: Mater Sci Eng C Mater Biol Appl. 2016 Jun 15;68:723–731. doi: 10.1016/j.msec.2016.06.049

Figure 9. Biomechanical push-out strength.

Figure 9

(A) In terms of the interfacial stiffness, the AD+MW+AC group was significantly stiffer than the PEEK group after 6 weeks implantation (* indicates p<0.05), but no such differences were observed at 18 weeks. The AD+MW group showed a consistent trend of being stiffer at the bone implant interface than the PEEK group after both 6 and 18 weeks. (B) The toughness of the bone implant interface in both the AD+MW and the AD+MW+AC coated groups increased from 6 to 18 weeks and yielded higher values than that of uncoated PEEK implants at 18 weeks.