Moulded article, provided with granules (8) made of a bio compatible material,which granules have a substantially porous structure and are interconnected,forming a rigid or semi-rigid structure. A mass (7) for forming such a mouldedarticle. A method for forming a moulded article, comprising the steps of providinga mass comprising at least granules made of a bio compatible material and havinga porous structure, and pressing said mass, especially said granules together,for forming a rigid or semi-rigid structure.