An external fixation frame for the leg is made up of Bonnel pins, strengthened by bands of autopolymerising resin. The experiment shows this apparatus to be solid, reliable and easy to use. The technique of application is extremely simple and the cost low. The indications are the same as those of proven classical fixation devices, which must be preferred for the moment, when possible. Its use is therefore limited, but justified under special circumstances (poorly equipped units far from major centres, war surgery).