Figure 8.
Bone ingrowth of porous and smooth PEEK surfaces: (a,c) Representative histological images of fibrous tissue formation on smooth PEEK faces at six and twelve weeks, respectively. (b,d) Representative histological images of bone ingrowth within porous PEEK faces at six and twelve weeks, respectively. Osteoid stained deep red; mineralized bone stained green; fibrous tissue stained light orange; and PEEK material is seen in brown. Scale bar is 200 µm. (Reprinted from Evans, 201534 with permission from Elsevier.)