_Padding_ is an essential adjunct to all forms of splints. The whole part enclosed in the splint must be covered with a thick layer of soft and elastic material, such as wool from which the fat has not been removed. All hollows should be filled up, and all bony projections specially protected by rings of wadding so arranged as to take the pressure off the prominent point and distribute it on the surrounding parts. Opposing skin surfaces must always be separated by a layer of wool or boracic lint. A bandage should never be applied to the limb underneath the splints and pads, as congestion or even gangrene may be induced thereby. #Operative Treatment of Simple Fractures.#--Operation in simple fracture is specially called for (1) in fracture into or near a joint where a permanently displaced fragment will cause locking of the joint; (2) when fragments are drawn apart, as in fractures of the patella or olecranon; (3) when displacement, especially shortening, cannot be remedied by other means; (4) when complications are present, such as a torn nerve-trunk or a main artery; (5) when non-union is to be feared, as in certain cases of fracture of the neck of the femur in old people. Under such circumstances it is necessary to expose the fracture by operation, and to place the fragments in accurate apposition, if necessary, fixing them in position by wires, pegs, plates, or screws (_Op. Surg._, p. 52). Operative interference is usually delayed till about five to seven days after the injury, by which time the effect of other measures will have been estimated, accurate information obtained by means of the X-rays regarding the nature of the lesion and the position of the fragments, and the tissues recovered their normal powers of resistance. Such operations, however, are not to be undertaken lightly, as they are often difficult, and if infection takes place the results may be disastrous. Arbuthnot Lane and Lambotte advocate a more general resort to operative measures, even in simple and uncomplicated fractures, and it must be conceded that in many fractures an open operation affords the only means of securing accurate apposition and alignment of the fragments. Both before and after operation, massage and movement are to be carried out, as in fractures treated by other methods. COMPOUND FRACTURES The essential feature of a compound fracture is the existence of an open wound leading down to the break in the bone. The wound may vary in size from a mere puncture to an extensive tearing and bruising of all the soft parts.