An anchoring device (101) to be implanted in a human or animal hard tissue, the anchoring device comprising a device body with a proximal head part (102), and with a distal stem part (103) capable of being anchored in the hard tissue, the device body further comprising a longitudinal bore (13) extending distally from a proximal end, the anchoring device further comprising a liquefiable element that is insertable or inserted into the longitudinal bore (13) and at least partially liquefiable by the impact of energy that impacts from the proximal side so that the liquefied material flows through at least one hole and out of the longitudinal bore to structures of the hard tissue and / or of the hard tissue replacement material characterized because the stem part is not threaded and has a non-circular cross-section, where at least a portion of the stem part (103) is flat and d two flat sides, where the rod part (103) is helically twisted, with a twist of between 10º and 270º over the entire length of the anchoring device, and where the rod part comprises at least two holes (14) from the longitudinal bore outward, a hole being provided on each flat side.Un dispositivo de anclaje (101) para ser implantado en un tejido duro humano o animal, comprendiendo el dispositivo de anclaje un cuerpo de dispositivo con una parte de cabeza proximal (102), y con una parte de vástago distal (103) capaz de ser anclada en el tejido duro, comprendiendo el cuerpo del dispositivo además un ánima longitudinal (13) que se extiende distalmente desde un extremo proximal, comprendiendo el dispositivo de anclaje además un elemento licuable que es insertable o está insertado en el ánima longitudinal (13) y al menos parcialmente licuable por el impacto de energía que incide desde el lado proximal de manera que el material licuado fluye a través de al menos un agujero y fuera del ánima longitudinal a estructuras del tejido duro y/o del material de reemplazamiento del tejido duro caracterizado por que
