The reinforcement implant has elongated shaft-like shape receiving sleeves (1,2) with ends. The releasable coupling element (3) for rigid connection is placed between the ends of elongated shaft-like shape receiving sleeve. The dimensions of the receiving sleeve are different from each other. Several mounting holes (15,16) are arranged in receiving sleeve. The tip of attachment screw is made of hard metal. An independent claim is included for method for implanting reinforcement implant.<;p>;La invenció;n se refiere a un Implante de refuerzo para unir o conectar vá;stagos de anclaje de dos pró;tesis contrapuestas colocadas en un hueso alargada, especialmente pró;tesis (94, 95) colocadas en un fé;mur (9), CARACTERIZADO porque dicho Implante de refuerzo: i) presenta generalmente una forma alargada a modo de vá;stago, y en sus dos extremos respectivamente un manguito de alojamiento (1, 2) para cada uno de los vá;stagos de anclaje (96, 97); y ii) una pieza separable de acoplamiento (3), situada en medio para una unió;n rí;gida.<;/p>;