Fig. 6.

Histological analysis of the osteointegration after 56 days. A) Significantly more connective tissue surrounded the K-wires of the CTRL group (p = 0.0012). B) The bone-implant contact was significantly higher in the Porous and Genta groups compared to CTRL (p = 0.0032). C) Example of connective tissue (black asterisk) between the CTRL wire (white plus sign) and the newly formed bone (white hash). D) High magnifications showing the growth of bone to the CTRL surface and the direct ingrowth of bone into the porous surface. Blue arrows: areas with no contact; white hash: newly formed bone; white plus sign: K-wire surface (upper picture: smooth control, lower picture: porous).