The patient is put fully under chloroform and brought to the foot of the bed; the surgeon grasps the ankle in one hand, and the knee in the other, bending that joint till the heel reaches the thigh; he next flexes the thigh on the abdomen, in doing this he carries the knee outwards away from the body, and then rotates the limb by pushing the foot outwards, on which the head often slips into the acetabulum. If this plan do not quickly succeed it is better to have recourse to extension, by assistants if pulleys are not at hand, but the irregularity of the force when assistants are employed renders the traction of pulleys much preferable to manual strength. =Dislocation downwards= into the ischiatic foramen. The limb is lengthened, capable of little motion; the knee is bent; the toe points forwards, and away from the other foot. Here the reduction is best managed by extension; the apparatus required being the same as that employed in dislocation backwards, but it is differently arranged. Step 1. The patient lies on his back, the pelvic girth, or towel, is carried round the pelvis and fastened to the wall on a level with his body, opposite the uninjured side. A jack towel is put round the upper part of the dislocated thigh, and attached to the pulleys outside, which are fastened to the wall opposite (see fig. 67). [Illustration: Fig. 67.—Dislocation into the foramen ovale.] Step 2. Extension is then made by an assistant, the surgeon grasps the leg above the ankle, and rotating the limb inwards and outwards, but without lifting it from the bed, guides the head into the acetabulum. Here, as after dislocation backwards, a long splint should be worn on the limb for three weeks before the patient is allowed to move about at all. =Dislocation on to the Pubes.=—The limb is easily moved at the hip, shortened, rotated outwards, and the head of the bone is felt in the groin. The same apparatus is used in this as in the dislocation on the dorsum ilii. It is applied as follows:— Step 1. The patient lies on his back (fig. 68), with his legs separated. The pelvic band is passed over the perinæum and pubes, and attached above the patient, in a line passing from the pelvis a little to his sound side. A double jack towel is slipped up the limb to the perinæum; the pulleys are fastened to the thigh above the knee and fixed, in the manner directed on page 106, to the wall below and external to the injured side of the body. [Illustration: Fig. 68.—Dislocation on to the pubes.] Step 2. Extension is then steadily made, while the surgeon watches the head getting free from the pubes, over the edge of which a second assistant slipping his neck through the doubled towel, raises the bone a little outwards. The surgeon in the meantime encourages the bone by rotation to enter the socket. A splint is necessary here also after reduction.