Implant for transfemoral or transtibial amputees comprising a shank (3) and a base (2), the base (2) comprising a support surface of the bone (4) on one side and on an opposite side a support surface charge soft tissue (5), extending the rod from the base perpendicular to the support surface of the bone and being configured for insertion into a medullary canal (23) of an amputated bone (20), the support surface of the bone being (4 ) configured to form abutting a sectioned end (22) of said amputated bone, the diameter (d1) being configured base so as to be greater than an average diameter of a shaft (21) of said severed bone, the surface of load bearing soft tissue (5) comprises a central generally flat or slightly curved portion (10) and an outer portion (11) curving radially convexly with a greater than the central curvature, the central part (10) being oriented a Low angle at between 4 ° and 8 ° with the support surface of the bone, wherein the shape of the base (2) is tapered so that near the central portion (10) the diameter is less than the diameter of the base near the bone support surface (4).Implante para amputación transfemoral o transtibial que comprende un vástago (3) y una base (2), comprendiendo la base (2) una superficie de soporte de hueso (4) en un lado y en un lado opuesto una superficie de soporte de carga de tejido blando (5), extendiéndose el vástago desde la base perpendicular a la superficie de soporte de hueso y estando configurado para la inserción en un conducto medular (23) de un hueso amputado (20), estando la superficie de soporte de hueso (4) configurada para formar tope con un extremo seccionado (22) de dicho hueso amputado, estando configurado el diámetro (d1) de la base de forma que sea mayor que un diámetro medio de una diáfisis (21) de dicho hueso seccionado, la superficie de soporte de carga de tejido blando (5) comprende una parte central (10) generalmente plana o ligeramente curva y una parte externa (11) curva radialmente de ma
