The invention relates to a base platform (11) for an artificial joint, in particularfor an artificial shoulder joint, wherein the platform can be anchored on thebone and serves as a support for an artificial joint component (15, 17) that canbe provided both in the form of a shell component (15) for an anatomical configurationand also in the form of a ball component (17) for an inverse configuration, andwherein different joint components can be mounted on the platform.
