Abstract: A non-metallic joint prosthesis having a plurality of pores penetrating the thickness of the non-metallic material and primarily intended for use for replacing damaged joints in humans. The prosthetic blank is substantially elongate in configuration, and the opposite end portions are tapered so as to define a relatively wider central segment. The entire blank is reinforced by impregnation with a biocompatible elastomer, and then the tapered opposite end portions are provided with additional quantities of the reinforcing material to facilitate their attachment to the bone structures. Also disclosed and claimed is a method for fabricating the prosthetic blank as well as a method for repairing damaged joints using the prosthesis.