Abstract: The present invention relates to a device for stabilizing an articulation, such as a splint or a brace. The aim of the invention is to provide such a stabilizing device which is easy to use and manufacture, is disposable and has a very low retail price. These aims are achieved by means of a device for articular stabilization, which comprises a board obtained by means of cutting and having a shape characteristic of the articulation to be protected, this board being made from a thin sheet of deformable material, this board having folding lines for folding the said board by adapting it to the articulation to be protected, means for holding the said board in the folded position and/or means for stabilizing the folded board on the said articulation. This device is more particularly intended to immobilize momentarily an articulation in the event of a fracture.