A prosthetic implant with improved properties suitable for implantation to the human body comprising a composite comprising a base material and a plurality of additives wherein the additives are selected from radiolucent additives and/or hyperechoic additives; or wherein the additives are selected to reduce the solvent concentration by between 5% 95%; or wherein the additives are selected to increase the elastic modulus by more than 20%; or wherein the additives are selected for combining these effects.