Abstract: An Osteosynthesis plate for application to a fractured bone across a fractured site thereof by screws applied to said bone through screw holes of said plate, wherein resilient means is provided between at least two screw holes spaced in a longitudinal dimension of said plate, to allow for a limited movement of the said holes in respect to each other under the action of externally generated forces, which may be magnetic, the freedom of movement being restricted essentially to a direction parallel to said longitudinal dimension.