A bone distraction device and a method for installing and using the bone distraction device are disclosed. Separated portions of a bone may be coupled to two or more mounts of the bone distraction device. Each portion of the bone may be coupled to at least one mount. The mounts may be contoured in arcs of at least .pi./3 radians to accommodate the circumference of the bone. The bone distraction device may include three or more guide rods coupled to the mounts. A distractor may be used to move one mount relative to one or more other mounts to distract the bone portions. In one embodiment, one mount may be coupled to a transport segment of bone for transport distraction between two bone segments. In some embodiments, a hydraulic bone distractor may be used to distract the bone portions.