An elbow prosthesis, comprising: a humeral component (19) that includes a humeral stem (1) and a bicondilar portion (2) at one end of the humeral stem (1), the bicondilar portion (2) being defined by condyles (18M, 18L) spaced distally, spaced apart, each including a condyle support surface (21 M, 21L) and a hole (17) extending therethrough； a cubital component (4) that includes a stem and an ulnar support component (5a； 5b) at one end of the stem (1), the ulnar support component (5a； 5b) having support surfaces (41M, 41L) having receive and apply to condyles that extend distally (18L, 18M) and allow articulation of the humeral component (19) with respect to the ulnar component (4) in which the ulnar support component (5a, 5b) includes a post (37) disposed between the support surfaces (41 M, 41L) of the ulnar support component (5a, 5b)； and an axis (6) is connected to the post (37) of the ulnar component (4), in which the two distally extending condyles (18L, 18M) rotate around the axis (6), which is characterized in that the axis ( 6) is rigidly locked to the post (37).Una prótesis de codo, que comprende: un componente humeral (19) que incluye un tallo humeral (1) y una porción bicondilar (2) en un extremo del tallo humeral (1), estando definida la porción bicondilar (2) por, cóndilos (18M, 18L) que se extienden distalmente, espaciados, incluyendo cada uno una superficie de soporte de cóndilo (21 M, 21L) y un orificio (17) que se extiende a través del mismo； un componente cubital (4) que incluye un tallo y un componente de soporte cubital (5a； 5b) en un extremo del tallo (1), teniendo el componente de soporte cubital (5a； 5b) superficies de soporte (41M, 41L) que reciben y se aplican a los cóndilos que se extienden distalmente (18L, 18M) y permiten la articulación del componente humeral (19) con respecto al componente cubital (4) en el que el componente de soporte cubital (5a, 5b) incluye un poste (37) dispuesto entre las superficies de soporte (41 M, 41L) del comp
