An implant (10) for anchoring on a bone (1) has a plurality of anchoring pins (20)which extend away from a fastening side of the implant and are provided for anchoringthe implant in the bone. In different areas of the fastening side of the implant,the pin arrangement and/or the geometry of the pins are chosen differently. Inparticular, in different areas of the fastening side of the implant, the volumeof the anchoring pins (20) per unit of surface area of the fastening side of theimplant is different, preferably in such a way that the geometry and/or arrangementof the pins (20) is chosen according to the proportion of bone tissue in the totaltissue of the bone substance, opposite which the area of the fastening side isprovided, in such a way that, in areas where there is a relatively higher proportionof bone tissue as a whole, less tissue is displaced by the anchoring pins than inareas where there is a relatively smaller proportion of bone tissue.
