CHAPTER V
Dislocations
How to Tell a Dislocation—Reducing a Dislocated Jaw—Stimson's Method of Treating a Dislocated Shoulder—Appearance of Elbow when Out of Joint—Hip Dislocations—Forms of Bandages.
DISLOCATIONS; BONES OUT OF JOINT.
JAW.—Rare. Mouth remains open, lower teeth advanced forward.
First Aid Rule 1.—Protect your thumbs. Put on thick leather gloves, or bind them with thick bandage.
Rule 2.—Assistant steadies patient from behind, with hands both sides of his head, operator presses downward and backward with his thumbs on back teeth of patient, each side of patient's jaw, while the chin is grasped between forefingers and raised upward. Idea is to stretch the ligament at jaw joint, and swing jaw back while pulling on this ligament. ([Fig. 29].)
Rule 3.—Tie jaw with four-tailed bandage up against upper jaw for a week. ([Fig. 12], p. 90.)
SHOULDER.—Common accident. No hurry. See p. [122].
ELBOW.—Rare. No hurry. See p. [125].
HIP.—No hurry. See p. [129].
KNEE.—Rare. Easily reduced. Head of lower bone (tibia) is moved to one side; knee slightly bent.
First Aid Rule 1.—Put patient on back.
Rule 2.—Flex thigh on abdomen and hold it there.
Rule 3.—Grasp leg below knee and twist it back and forth, and straighten knee.
DISLOCATIONS.—A dislocation is an injury to a joint wherein the ends of the bones forming a joint are forced out of place. A dislocation is commonly described as a condition in which a part (as the shoulder) is "out of joint" or "out of place." A dislocation must be distinguished from a sprain, and from a fracture near a joint. In a sprain, as has been stated (p. [65]), the bones entering into the formation of the joint are perhaps momentarily displaced, but return into their proper place when the violence is removed. But, owing to greater injury, in dislocation the head of the bone slips out of the socket which should hold it, breaks through the ligaments surrounding the joint, and remains permanently out of place. For this reason there is a peculiar deformity, produced by the head of the bone's lying in its new and unnatural situation, which is not seen in a sprain.
Also, the dislocated joint cannot be moved by the patient or by another person, except within narrow limits, while a sprained joint can be moved, with the production of pain it is true, but without any mechanical obstacle. In the case of fracture near a joint there is usually increased movement in some new direction. When a dislocated joint is put in proper place it stays in place, whereas when a fractured part is reduced there is nothing to keep it in place and, if let alone, it quickly resumes its former faulty position.
Only a few of the commoner dislocations will be considered here, as the others are of rare occurrence and require more skill than can be imparted in a book intended for the laity. The following instructions are not to be followed if skilled surgical attendance can be secured; they are intended solely for those not so fortunately situated.
DISLOCATION OF THE JAW.—This condition is caused by a blow on the chin, or occurs in gaping or when the mouth is kept widely open during prolonged dental operations. The joint surface at the upper part of the lower jaw, just in front of the entrance to the ear, is thrown out of its socket on one side of the face, or on both sides. If the jaw is put out of place on both sides at once, the chin will be found projecting so that lower front teeth jut out beyond the upper front teeth, the mouth is open and cannot be closed, and the patient is suffering considerable pain. When the jaw is dislocated on one side only, the chin is pushed over toward the uninjured side of the face, which gives the face a twisted appearance; the mouth is partly open and fixed in that position. A depression is seen on the injured side in front of the ear, while a corresponding prominence exists on the opposite side of the face, and the lower front teeth project beyond the upper front teeth.
Fig. 29.
REDUCING DISLOCATION OF JAW (American Text-Book).
Thumbs placed upon last molar teeth on each side; note jaw grasped between fingers and thumbs to force it into place.
Treatment.—A dislocation of one side of the jaw is treated in the same manner as that of both sides.
The dislocation may sometimes be reduced by placing a good-sized cork as far back as possible between the back teeth of the upper and lower jaws (on one or both sides, according as the jaw is out of place on one or both sides), and getting the patient to bite down on the cork. This may pry the jaw back into place.
The common method is for the operator to protect both thumbs by wrapping bandage about his thumbs, or wearing leather gloves, and then, while an assistant steadies the head, the operator presses downward and backward on the back teeth of the patient on each side of the lower jaw with both thumbs in the patient's mouth, while the chin is grasped beneath by the forefingers of each hand and raised upward. When the jaw slips into place it should be maintained there by a bandage placed around the head under the chin and retained there for a week. During this time the patient should be fed on liquids through a tube, so that it will not be necessary for him to open his mouth to any extent. (See [Fig. 29].)
DISLOCATION OF THE SHOULDER.—This is by far the most common of dislocations in adults, constituting over one-half of all such accidents affecting any of the joints. It is caused by a fall or blow on the upper arm or shoulder, or by falling upon the elbow or outstretched hand. The upper part (or head) of the bone of the arm (humerus) slips downward out of the socket or, in some cases, inward and forward. In either case the general appearance and treatment of the accident are much the same. The shoulder of the injured side loses its fullness and looks flatter in front and on the side. The arm is held with the elbow a few inches away from the side, and the line of the arm is seen to slope inwardly toward the shoulder, as compared with the sound arm.
The injured arm cannot be moved much by the patient, although it can be lifted up and away from the side by another person, but cannot be moved so that, with the elbow against the front of the chest, the hand of the injured arm can be laid on the opposite shoulder. Neither can the arm, with the elbow at a right angle, be made to touch the side with the elbow, without causing great pain.
Treatment.—One of the simplest methods (Stimson's) of reducing this dislocation consists in placing the patient on his injured side on a canvas cot, which should be raised high enough from the floor on chairs, and allowing the injured arm to hang directly downward toward the floor through a hole cut in the cot, the hand not touching the floor. Then a ten-pound weight is attached to the wrist. The gradual pull produced by this means generally brings the shoulder back into place without pain and within six minutes. ([Fig. 30].)
Fig. 30.
TREATING A DISLOCATED SHOULDER.
(Reference Handbook.)
Patient lying on injured side; note arm hanging through hole in cot raised from floor on chairs; also weight attached to wrist.
The more ordinary method consists in putting the patient on his back on the floor, the operator also sitting on the floor with his stockinged foot against the patient's side under the armpit of the injured shoulder and grasping the injured arm at the elbow, he pulls the arm directly outward (i. e., with the arm at right angles with the body) and away from the trunk. An assistant may at the same time aid by lifting the head of the arm bone upward with his fingers in the patient's armpit and his thumbs over the injured shoulder.
If the arm does not go into place easily by one of these methods it is unwise to continue making further attempts. Also if the shoulder has been dislocated several days, or if the patient is very muscular, it will generally be necessary that a surgeon give ether in order to reduce the dislocation. It is entirely possible for a skillful surgeon to secure reduction of a dislocation of the shoulder several weeks after its occurrence. After the dislocation has been relieved the arm, above the elbow, should be bandaged to the side of the chest and the hand of the injured side carried in a sling for ten days.
DISLOCATION OF THE ELBOW.—This is more frequent in children, and is usually produced by a fall on the outstretched hand. The elbow is thrown out of joint, so that the forearm is displaced backward on the arm, in the more usual form of dislocation. The elbow joint is swollen and generally held slightly bent, but cannot be moved to any extent without great pain. The tip of the elbow projects at the back of the joint more than usual, while at the front of the arm the distance between the wrist and the bend of the elbow is less than that of the sound arm. (See cut, p. [126].)
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Fig. 31. Above cut shows characteristic appearance of a dislocated shoulder; note loss of fullness; also elbow held away from side and inward sloping of arm. | Fig. 32. |
DISLOCATED ELBOW AND SHOULDER.
(American Text-Book.)
Fig. 32 shows dislocation of elbow backward; note swollen condition of left elbow held slightly bent; also the projection of back of joint.
For further proof that the elbow is out of joint we must compare the relations of three points in each elbow. These are the two bony prominences on each side of the joint (belonging to the bone of the arm above the elbow) and the bony prominence that forms the tip of the elbow which belongs to the bone of the forearm.
Fig. 33.
TREATMENT OF DISLOCATED ELBOW (Scudder).
Note padded right-angled tin splint; also three strips of surgeon's plaster on arm and forearm.
In dislocation backward of the forearm, the tip of the elbow is observed to be farther back, in relation to the two bony prominences at the side of the joint, than is the case in the sound elbow. This is best ascertained by touching the three points on the patient's elbow of each arm in turn with the thumb and middle finger on each of the prominences on the side of the joint, while the forefinger is placed on the tip of the elbow. The lower end of the bone of the upper arm is often seen and felt very easily just above the bend of the elbow in front, as it is thrown forward (see [Fig. 32], p. 126).
Fracture of the lower part of the bone of the arm above the elbow joint may present much the same appearance as the dislocation we are describing, but then the whole elbow is displaced backward, and the relation of the three points described above is the same in the injured as in the uninjured arm. Moreover in fracture the deformity, when relieved, will immediately recur when the arm is released, as there is nothing to hold the bones in place; but in dislocation, after the bones are replaced in their normal position, the deformity will not reappear.
Treatment.—The treatment for dislocation consists in bending the forearm backward to a straight line, or even a little more, and then while an assistant holds firmly the arm above the elbow, the forearm should be grasped below the elbow and pulled with great force away from the assistant and, while exerting this traction, the elbow is suddenly bent forward to a right angle, when the bones should slip into place.
The after treatment is much the same as for most fractures of the elbow. The arm is retained in a well-padded right-angled tin splint which is applied with three strips of surgeon's plaster and bandage to the front of the arm and forearm (see [Fig. 33]) for two or three weeks. The splint should be removed every few days, and the elbow joint should be moved to and fro gently to prevent stiffness, and the splint then reapplied.
DISLOCATION OF THE HIP.—This occurs more commonly in males from fifteen to forty-five years of age, and is due to external violence. In the more ordinary form of hip dislocation the patient stands on the sound leg with the body bent forward, the injured leg being greatly shortened, with the toes turned inward so much that the foot of the injured limb crosses over the instep of the sound foot. The injured limb cannot be moved outward and but slightly inward, yet may be bent forward. Walking is impossible. Pain and deformity of the hip joint are evident.
The only condition with which this would be likely to be confused is a fracture of bone in the region of the hip. Fracture of the hip is common in old people, but not in youth or middle adult life. In fracture there is usually not enough shortening to be perceived with the eye; the toes are more often turned out, and the patient can often bear some weight on the limb and even walk.
Treatment.—The simplest treatment is that recommended by Stimson, as follows: the patient is to be slung up in the air in a vertical position by means of a sheet or belt of some sort placed around the body under the armpits, so that the feet dangle a foot or so from the floor, and then a weight of about ten or fifteen pounds, according to the strength of the patient's muscles, is attached to the foot of the injured leg (bricks, flatirons, or stones may be used), and this weight will usually draw the bone down into its socket within ten or fifteen minutes.
Fig. 34.
REDUCING DISLOCATION OF HIP (Reference Handbook).
Patient lying on table; uninjured leg held by assistant; leg of dislocated side at right angles; note weight at bend of knee.
Or the patient may assume the position shown in the accompanying cut, lying prone upon a table with the uninjured leg held horizontally by one person, while another, with the injured thigh held vertically and leg at right angles, grasps the patient's ankle and moves it gently from side to side after placing a five-to ten-pound sand bag, or similar weight of other substance, at the flexure of the knee. When the dislocation has been overcome the patient should stay in bed for a week or two and then go about gradually on crutches for two weeks longer.
SURGICAL DRESSINGS.—Sterilized gauze is the chief surgical dressing of the present day. This material is simply cheese cloth, from which grease and dirt have been removed by boiling in some alkaline preparation, usually washing soda, and rinsing in pure water. The gauze is sterilized by subjecting it to moist or dry heat. Sterilized gauze may be bought at shops dealing in surgeons' supplies and instruments, and at most drug stores. Gauze or cheese cloth may be sterilized (to destroy germs) by baking in a slow oven, in tin boxes, or wrapped in cotton cloth, until it begins to turn brown. It is well to have a small piece of the gauze in a separate package, which may be inspected from time to time in order to see how the baking is progressing, as the material to be employed for surgical purposes should not be opened until just before it is to be used, any remainder being immediately covered again. Cut the gauze into pieces as large as the hand, before it is sterilized, to avoid cutting and handling afterwards. Gauze may also be sterilized by steaming in an Arnold sterilizer, such as is used for milk, or by boiling, if it is to be applied wet. Carbolized, borated, and corrosive-sublimate gauze have little special value.
| Fig. I. | Fig. II. |
| Fig. III. | Fig. IV. |
Plate I.
APPLYING A ROLLER BANDAGE (Reference Handbook).
Fig. I shows method of starting a spiral bandage; Fig. II, ready to reverse; Fig. III, the reverse completed; Fig. IV shows spica bandage applied to groin.
Absorbent cotton is also employed as a surgical dressing, and should also be sterilized if it is to be used on raw surfaces. It is not so useful for dressing wounds as gauze, since it mats down closely, does not absorb secretions and discharges so well, and sticks to the parts. When torn into balls as large as an egg and boiled for fifteen minutes in water, it is useful as sponges for cleaning wounds. Sheet wadding, or cotton, is serviceable in covering splints before they are applied to the skin. Wet antiseptic surgical dressings are valuable in treating wounds which are inflamed and not healing well. They are made by soaking gauze in solutions of carbolic acid (half a teaspoonful of the acid to one pint of hot water), and, after application, covering the gauze with oil silk, rubber dam, or paraffin paper. Heavy brown wrapping paper, well oiled or greased, will answer the purpose when better material is not at hand.
BANDAGES.—Bandaging is an art that can only be acquired in any degree of perfection by practical instruction and experience. Some useful hints, however, may be given to the inexperienced. Cotton cloth, bleached or unbleached, is commonly employed for bandages; also gauze, which does not make so effective a dressing, but is much easier of application, is softer and more comfortable, and is best adapted to the use of the novice. A bandage cannot be put on properly unless it is first rolled. A bandage for the limbs should be about two and a half inches wide and eight yards long; for the fingers, three-quarters of an inch wide and three yards long. The bandage may be rolled on itself till it is as large as the finger, and then rolled down the front of the thigh, with the palm of the right hand, while the loose end is held taut in the left hand.
Plate II.
DIFFERENT FORMS OF BANDAGES.
(American Text-Book and Reference Handbook.)
Fig. I shows application of figure-of-eight bandage; Fig. II, a spica bandage of thumb; Fig. III, a spica bandage of foot; Fig. IV, a T-bandage.
Two forms of bandages are adapted to the limbs, the figure-of-eight, and the spiral reversed bandage. In applying a bandage always begin at the lower extremity of the limb and approach the body. Make a few circular turns about the limb (see [Fig. I], p. 132), then as the limb enlarges, draw the bandage up spirally, reversing it each time it encircles the limb, as shown in [Fig. I], p. 134. In reversing, hold the bandage with the left thumb so that it will not slip, and then allowing the free end to fall slack, turn down as in [Fig. II], p. 132.
The T-bandage is used to bandage the crotch between the thighs, or around the forehead and over the top of the skull. (See [Fig. IV], p. 134.) In the former case, the ends 1–1 are put about the body as a belt, and the end 2 is brought from behind, in the narrow part of the back, down forward between the thighs, over the crotch, and up to the belt in the lower part of the belly. The figure-of-eight bandage is used on various parts, and is illustrated in the bandage called spica of the groin, [Fig. IV], p. 132. Beginning with a few circular turns about the body in the direction of 1, the bandage is brought down in front of the body and groin, as in 2, and then about the back of the thigh up around the front of the thigh, as in 3, across the back and once around the body and down again as in 2. Other bandages appropriate to various parts of the body are also illustrated that by their help the proper method of their application may be understood. See pages [132], [134], [136], [137]. The triangular bandage (see p. [88]) made from a large handkerchief or piece of muslin a yard square, cut or folded diagonally from corner to corner, will be found invaluable in emergency cases. It is easily and quickly adjusted to almost any part of the body, and may be used for dressing wounds, or as a bandage for fractures, etc.
| Fig. I. | Fig. II. |
Plate III.
BANDAGES FOR EXTREMITIES (American Text-Book).
Fig. I shows a spiral reversed bandage of arm and hand, requiring roller 21/2 inches wide and 7 yards long; Fig. II shows a spiral reversed bandage of leg and foot, requiring roller 21/2 inches wide and 14 yards long.
| Fig. I. | Fig. II. |
| Fig. III. | Fig. IV. |
Plate IV.
BANDAGES FOR HEAD AND HAND.
(American Text-Book.)
Fig. I shows a gauntlet bandage; Fig. II, a circular bandage for the jaw; Fig. III, a circular bandage for the head; Fig. IV, a figure-of-eight bandage for both eyes.