Abstract: A surgical implant for the fixation of bone portions and methods for using the same to reduce bone fractures with or without the use of bone fixating plates and in a variety of surgical procedures where rigid fixation of bones or bone portions even under great stress is required. The implant has a generally frusto-conical head with a plurality of arms hingeably connected thereto, the arms capable of moving from a retracted position to and extended position. A rectilinear bore having a diameter slightly greater than the greatest effective transverse dimension of the implant device with the arms in the retracted position is drilled through the bone portions to be fixated. A guiding tube or shaft is provided to guide the head of the implant device with the connected arms in retracted position into the bore.