Abstract: Orthopedic compositions are provided that include a homogeneous mixture of a biocompatible polymer and a bioactive particulate ceramic wherein the ceramic has an average particle size of not more than 500 nm are provided. The compositions may be used to form bone cement or various spinal implants, including spinal spacers, interbody fusion cages, bone plates and bone screws. Methods for stabilizing a spine, for correcting a bone defect, and for promoting fusion of adjacent vertebrae are also provided.

Abstract: Plastics toughened plastics are metallocene catalyzed polyethylenes (mPE) and isotactic polypropylene (iPP). These plastic toughened plastics are useful in molded articles, most especially automotive interior trim parts. The mPE can be present in such toughened plastics from 5-40 weight percent, the iPP from 60-95 weight percent. The toughened plastics will have an excellent balance of tensile toughness, elongation and modulus at −10° C. Generally the tensile toughness will be 25-250% greater than the tensile toughness of a similarly proportioned blend of Ziegler-Natta catalyst produced polyethylene/iPP.