When the elbow is dislocated backward, the most common form, the point of the elbow will be found projecting much more than naturally, and it will be impossible to bend the arm more than to a right angle, though it may be drawn out without pain. This dislocation can generally be reduced very easily by simply placing the knee in the bend of the elbow and bending the arm around the knee while pulling upon it with considerable force. After the dislocation is reduced, the arm should be placed in a sling. Hot fomentations should be applied to relieve soreness, and if inflammation threatens, cool or. ice compresses should be used, as much as is necessary.