A limb prosthesis which via coupling means is adapted to be connected to an implant in the form of an osseointegrated shaft projecting from an amputated stump. The coupling means comprises a flexible joint and the prosthesis further comprises at least one force transmitting device secured to and extending from a prosthetic member connected to the coupling means up to a position on the amputated stump or body portion to which the stump connects. The force transmitting device is adapted to be secured to the stump or other body portion in such a way that it relieves the implant from at least part of the bending and/or rotational forces exerted to the prosthetic member.