Patent ID: 8067069

Claim:
An implantable article comprising a biocompatible substrate having a bioactive ceramic calcium phosphate strontium apatite coating wherein the bioactive ceramic calcium phosphate strontium apatite includes nanopores, nanocrystals, and strontium ions, wherein the strontium ions inhibit bone resorption in vitro and enhance bone formation in vivo so that the implantable article exhibits enhanced fixation and bone ingrowth in and around the implantable article, and the bioactive ceramic calcium phosphate strontium apatite coating comprises a hexagonal crystal structure of apatite having a molar ratio of strontium to calcium of 0.0001 to about 0.5 so that a Thin-Film X-Ray Diffractometry (TF-XRD) diffraction pattern for the hexagonal crystal structure exhibits a 2θ diffraction peak shifted from a corresponding peak of pure apatite.