A cochlear implant system is described which includes an implant housing that includes an inward planar surface fits against an outer temporal bone surface of the implant patient, an outward planar surface is parallel to the inward planar surface and fits against overlying skin of the implant patient, and an outer perimeter around each of the planar surfaces forms a connecting surface between the planar surfaces. An implant stabilizer fits over a portion of the connecting surface at the radial outer perimeter and extends into a mastoid bowl opening in the temporal bone of the implant patient. At least one stabilizer attachment element connects to the implant stabilizer parallel to the planar surfaces and project towards the temporal bone at the mastoid bowl opening to fixedly secure the implant housing against the outer temporal bone surface.
