A prosthesis, in particular a shoulder prosthesis, includes a socket partreceiving a joint head； an anchoring part anchoring the prosthesis in a bone；anda connecting arrangement securely connecting the socket part to the anchoringpart. The socket part is assigned at least one pin and the anchoring part hasatleast one guide. The guide is designed in such a way that the pin can be heldsubstantially safe from tilting in the guide.
