A practical treatise on fractures and dislocations . ead of the femur is below the edge of the acetabulum, of throwing it over intothe foramen ovale. Dr. Nathan Smith has also noticed the advantage whichsometimes may be gained by giving to the limb at this moment a slight rockingmotion. UPWARD AND BACKWARD ON THE DORSUM ILII. 701 These movements of the limb, with perhaps other slight modifications,such as lifting the knee moderately or forcibly when the bone refuses tomount over the margin of the acetabulum, pressing with the hand or footupon the pelvic bones, and violent circumduction, are al
A practical treatise on fractures and dislocations . ead of the femur is below the edge of the acetabulum, of throwing it over intothe foramen ovale. Dr. Nathan Smith has also noticed the advantage whichsometimes may be gained by giving to the limb at this moment a slight rockingmotion. UPWARD AND BACKWARD ON THE DORSUM ILII. 701 These movements of the limb, with perhaps other slight modifications,such as lifting the knee moderately or forcibly when the bone refuses tomount over the margin of the acetabulum, pressing with the hand or footupon the pelvic bones, and violent circumduction, are all which havebeen usually practised in successful manipulation. As a general rule, inthe first trial, the knee must be carried only in those directions whichoffer no resistance, and these will be found almost always to be the same ;the knee of the dislocated femur hanging over the sound one will bemade easily to ascend to about a right angle with the body ; we can thencarry it outward a short distance, probably not more than four or five Fig. 448. -. Second position. Not often required. Liable to cause secondary dislocation into ischiatic notch or foramen ovale. degrees; at this moment, frequently, the thigh will begin to rotate out-ward of itself, and with considerable force, or, as Wathman says, a self-twisting of the thigh occurs, which cannot be prevented by fast this action takes place the reduction is immediately accomplished ;and it is, in fact, at this moment, before the limb begins to descend, thatthe bone most frequently resumes its socket. If it does not, then as soonas the limb begins to fall the reduction occurs, generally with a loud is pretty certain that this manipulation is to fail if the knee has de-scended more than a few inches without the reduction having takenplace; and it will be better to repeat the manoeuvre at once, rather thanto bring the limb completely down. 702 DISLOCATIONS OF THE THIGH. Generally anaesthetics ought not to be em
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