A bone fixation device comprising first and second screw receiving members, each member having an aperture extending therethrough for receiving a screw and a plastically deformable connecting arm extending between the screw receiving members along a long axis defined by the first and second screw receiving members the arm being adapted to be more pliable than the screw receiving members such that (a) on twisting the device about its long axis the arm twists before the screw receiving members deform and (b) on bending the device along its long axis the arm bends before the screw receiving members deform.
