A joint prosthesis comprising: a stem component (52) configured for engagement within the intramedullary cavity of a bone of a patient, which defines a cavity (62) having a bore (68) it is extending therefrom , an articulated component (20) configured for pivotal engagement with an opposing aspect of the joint, an insertion component (54) which can be received comfortably in the cavity in the stem component as to be adaptable to the stem component when the stem component is coupled to the bone, the component having insertion orifice fastener (76) extending therethrough, a clamping screw (56) which can be adjusted through hole fixator component insertion and screwed into the hole in the stem component to fix the insert component to the stem component and a coupling component (58) with a first pair like end (82) for engaging the articulated component and a second opposite end portion (84) engageable with the insert component in a manner that allows adjustment of the angular orientation of the articulating component relative to the insert component before final fixing component having coupling a hole extending through it, wherein the articulated component has a bore extending through it, allowing the openings in the hinge component and the coupling component the access by a driving tool to engage the screw in order to fix the insert component to the stem component and to release the insert component associated with the coupling from the stem component.Una prótesis articular que comprende: un componente de vástago (52) configurado para acoplamiento dentro de la cavidad intramedular de un hueso de un paciente, lo cual define una cavidad (62) que tiene un orificio (68) que se extiende a partir de ello, un componente articulado (20) configurado para acoplamiento articulado con un aspecto opuesto de la articulación, un componente de inserción (54) que puede ser recibido cómodamente en la cavidad en el componente de vástago tal como para ser adaptable con el componente de vá
