Figure 7

Interfacial evaluation2. Corresponding CT, histological, and SEM images of samples taken from a 4-week-old rabbit (a) with CPEEK and (b) with CPEEK-AN. (c) Magnified image of (a) using SEM and matched EDX mapping analysis of the composite. The hollow arrow points to the gap between the implant and the new bone. The solid white arrow indicates the middle progress during ossification. (d) Magnified image of (b) using SEM and matched EDX mapping analysis of the composite. (e) The line analysis for (e) which includes the interface between CPEEK and the new bone. (f) A section of the histological specimen of CPEEK-AN at 4 weeks co-stained with TRAP and ALP; this image illustrates a typical woven bone. The orange arrows indicate the TRAP positive cells and the hollow arrows indicate an ALP positive part of the new bone at the 4-week timepoint.