Abstract: A device for laterally displacing a femur from a hip socket is provided which includes a mount for attachment to a stationary surface, such as a surgical table, a member for exerting pressure against the femur when the member is placed in a predetermined position in contact with the patient, and an assembly for moving the member relative to the mount. Movement of the member permits a sufficient amount of pressure to be exerted and maintained against the femur to laterally displace it from the hip socket. The assembly includes a carriage adapted for selective angular attachment to the mount, a guide movably connected to the carriage and a lead screw for moving the guide relative to the carriage. The member is connected to, and movable with, the guide.