FIXATOR

An external bone fixator 10 includes a one piece support beam 11 without articulated joints that has opposed end blocks 12, 13 for the reception of bone screws 30 to attach the respective ends of the support beam to opposed sides of the fracture of the bone 50. The support beam is configured to allow predetermined relative movement between the respective ends to allow relative movement between the fractured ends of the bone to trigger and encourage callus formation between the fractured ends whilst maintaining the alignment of the bone ends.