These are supports of various kinds used in the treatment of fractures. They are composed of various materials, and are of different forms, according to the parts to which they are to be applied. The old-fashioned wooden splint is now largely displaced by coarse flat splints which are supplied in sets. Leather, gutta-percha, and various other substances are frequently employed, and possess the advantage that they may be molded to any part after having been rendered flexible by soaking in hot water. Heavy pasteboard or binder's board may be used in the same way. In case of emergency a shingle, or a piece of thin board of any sort, may be made to answer the purposes of the splint.

In the use of splints, they are padded by strips of folded flannel or strips of cotton, and are placed on either side of the limb in such a way as to hold the ends of the fractured bone together, the bandage being applied around the outside. Special appliances are required in the treatment of special fractures, such as apparatus for extension, cradles for suspending the limbs, fracture boxes, inclined planes, etc.