Abstract: An external fixator comprises transfixing pins having a flange which abuts against the bone surface to distribute stress along the length of the threaded portion extending into the bone. The pins are mounted in elastomeric bushes in an outrigger to allow limited movement at the outrigger. The outrigger comprises two clamps which are connected through an elastomeric bush allowing a small degree of axial bending and rotational movement of the clamps relative to one another. The arrangement reduces loosening of the pins in the bone and allows beneficial relative movement of the fractured bone portions near the fracture site.