A porous implantable device suitable for implantation in a living being, said implantable device comprising a high density porous material possessing the property of glass transition and at least one additive component, wherein at least one additive component is arranged to create a microstructure, wherein said high density is obtainable by a process comprising compression applied to at least one porous material, wherein said compression process causes the sacrifice of at least some pores in said porous, and a process for the manufacture of a high density porous material suitable for said implantable device.
