Abstract: Provided herein are surgical implants and methods of manufacturing the implants. The surgical implant includes an outer body made of a polymer, at least one internal strut coupled to the outer body, where the internal strut has a smaller diameter than the outer body, and ceramic granules deposited on the surface of the internal strut. Methods of manufacturing a surgical implant generally include injecting a molten mixture containing a polymer and ceramic particles into a mold. The mold defines a negative space for forming the implant. As the molten mixture flows through the negative space, the mold constricts the flow at the internal strut, causing the ceramic granules to deposit on the surface of the internal strut. The mixture is then cooled to form the implant, with the ceramic granules at least partially exposed on its surface.