The osteosynthesis implant according to the present invention includes a base body in the form of a plate having an upper side and a lower side intended for contact with the bone. The lower side has extensions for insertion in the bone, and their outer surface is provided with a retaining structure....http://www.google.de/patents/US6187009?utm_source=gb-gplus-sharePatent US6187009 - Osteosynthesis implant