Abstract
Long term performance of biologically-fixed implants is dependent on the quality of the interface tissue as well as the bone remodelling response. The purpose of this study was to assess a madreporic-surfaced prosthesis for the quality of tissue ingrowth, cortical bone porosity and micromotion at six and twenty-four months after implantation in dogs. All prostheses were rigid on manual manipulation at post-mortem examination. No significant difference in micromotion was found between the 6M and 24M groups at any of the three testing sites. Mean micromotion did not exceed 27 microns at any site. Fluorescent labels were not quantified however uptake was evident at both 6 and 24 months at all four levels.