Chapter II: Part 2

34. The patient being placed in a standing position, or, if his case render that impracticable, on a seat without a back, an assistant elevates the arm of the affected side, and supports it at nearly a right angle with the body (Fig. 2), while the surgeon places under the arm-pit the head of the bolster, which descends along the side of the thorax, and which another assistant, situated at the patient’s sound side, holds by the two upper corners.

35. The surgeon now takes one of the first rollers, applies the end of it on the middle of the bolster, fixes it there by two circular turns round the body, and passes a turn obliquely (a a) along the fore part of the thorax, ascending to the sound shoulder: the roller then descends behind, passes under the arm, and returning in front of the thorax, makes a circular turn and a half, horizontally. Having reached the hind part of the thorax, it reascends obliquely by the cast (b), as it had done before, and passes over, before, and under, the sound shoulder; having thus crossed the turn (a a), the roller again passes across the hind part of the thorax, and finishes by circular turns, which completely cover the bolster. A pin is now to be fixed in the place of crossing of the roller on the sound shoulder, to prevent the turn (a) from slipping downward.

The application of this first roller is intended for no other purpose, than firmly to fix the bolster which is held up by the two oblique turns before and behind, and secured against the body, by the subsequent circular turns.

36. The bolster being fixed, the surgeon applying one hand to its external surface, pushes it upwards, and, with the other, taking hold of the elbow, after having half-bent the fore arm, lowers the arm, till it is laid along the bolster. He then presses its lower extremity forcibly against the side of the thorax, pushing it upwards at the same time, and directing its upper extremity a little backwards.

The application of the bandage constitutes a part of the process of reduction. The humerus, now converted into a lever of the first kind, is drawn at its upper end from the shoulder, in proportion as its lower end, is approximated to the thorax. The scapulary fragment being drawn along with it, and directed at the same time upward and backward, comes into contact with the sternal fragment, and in an instant the deformity of the part disappears.

37. The arm being thus situated, is given in charge to an assistant, who retains it in the same position in which he received it from the surgeon, by pressing on it with one hand, and with the other supporting the fore arm half bent, and placed horizontally across the breast.

The second roller is next to be applied. The end of this is carried under the arm-pit of the sound side. It is then brought across the breast, over the superior part of the diseased arm, and extends across the thorax behind till it passes under the arm-pit. Two circular turns cover the first. The roller must then ascend to the lower part of the shoulder, by oblique turns (c. c. Fig. 3), each of which must be overlapped by the succeeding one, to the extent of about the third part of its breadth. It is necessary that these turns be applied in such a way, as to bind but very gently above, and to increase in tightness, as they descend nearer to the lower extremity of the humerus.

The use of this second roller is, to supply the place of the hand of the assistant, in pressing the arm against the side of the thorax; its effect evidently is to draw the upper extremity of the arm outwards, and, as it is already directed backwards, to retain it in that position. The compression of the circular turns on the arm, being thus gradually augmented, becomes, on the one hand, more efficacious, because it acts on a greater surface, and on the other, less troublesome, because, being more divided, it is less felt at the lower extremity of the arm, where it bears with most force.

38. A third indication remains still to be fulfilled, namely, to retain the shoulder in its elevated position, and, by that means, to assist in the extension of the fragments, which already has some effect in preventing a depression.

To fulfil this indication, an assistant sustains the elbow in its elevated position, with one hand, and, with the other, supports the patient’s hand before his breast, while the surgeon fills with lint the hollow spaces around the clavicle. He then applies on the clavicle, at the place where it is fractured, the two long compresses, wet with vegeto-mineral water, or some other cooling liquid. Taking now the last roller, he fixes the end of it under the sound shoulder; from thence he brings it obliquely across the breast, over the long compresses, and carries it down behind the shoulder along the posterior part of the arm, till it passes under the elbow. From this point, he again carries it obliquely upwards across the breast to the arm-pit, then across the back, over the compresses, and brings it down again before the shoulder, along the front of the humerus till it again reaches the elbow. From thence the roller again ascends obliquely behind the thorax, passing under the arm-pit, where the first cast of the roller is covered, and from whence it again starts, to run the same course we have just described. This constitutes a second round, which covers in part the first, and forms a kind of double triangle (e, f, d), situated before the breast, and over the circular turns of the other rollers (c. c. Fig. 4). The remaining part of the roller, brought from behind forward, is employed in circular turns over the arm, and round the thorax, for the purpose of preventing the displacement of the first part. To make it the more secure, it is fastened with pins at its different places of crossing.

The sling (Fig. 4) is next passed under the hand, and fastened above to the ascending turns (d), and not to the circular (c c), which the weight of the hand would be likely to draw downward.

39. It is only necessary to examine the course of this third roller, to see, that, united to the sling, it is well calculated to support the external fragment, which the weight of the shoulder has a tendency to depress, on a level with the internal one. It supplies the place of the assistant, who raises the elbow and supports the hand of the patient, in like manner as the second roller performs the office of the assistant, who presses the lower part of the humerus against the side of the thorax.

On the other hand, the circular turns, by which the application of the third roller is finished, being directed from before backward, push in the same direction the arm and shoulder, which have been already carried that way, by the process of reduction, and thus retain them in their proper places.

Hence may be inferred the truth of the proposition, which we have been endeavouring to demonstrate; namely, that the bandage of Desault, constructed according to the general principle formerly established (20), for fractures of the body of the clavicle, is calculated to retain the external extremity of the humeral fragment upward, outward, and backward.

40. The casts of the rollers, thus surrounding the thorax, however well they may be secured, are yet liable to be displaced, particularly when the patient is in bed. This inconvenience may be avoided, by surrounding the whole with a piece of linen, leaving nothing uncovered, but the sound arm, which is at liberty to perform its usual motions.

The arm of the diseased side, being thus fixed in such a manner, as to constitute a whole or entire body with the thorax, follows its movements, without producing any displacement. It is thus, that by the apparatus for a continued extension of the thigh, the fragments of the _os femoris_, forming an immoveable whole with the pelvis, cannot change their situation, even in following the motions of the trunk.

Hence arises, in fractures of the clavicle, this advantage, that the patient is not obliged to keep his bed, but is able even to attend to his business, during the progress of the cure.

41. I will not dwell on the numerous objections urged by different authors against the bandage which has just been described. What answer, indeed, can be given to those writers, who fancy that they behold the patient in the greatest danger of immediate suffocation; who dread an approaching mortification of the arm of the diseased side; who allege, contrary to the rules of the art, that there is no impression made immediately on the clavicle, but on a neighbouring bone; who, &c. &c.? Twenty times in a year, has experience answered those objections, in the Hotel-Dieu; and there is not a pupil of Desault, who has not, as well in this, as in many other cases, seen that objections, plausible, indeed, when considered in the closet, or at a distance from a sick room, dwindle to nothing at the bed-side of the patient.

42. In those cases (which, as Hippocrates remarks, very rarely occur) where the external fragment projects over the internal one (12), the bandage must be somewhat varied, although the two principal indications, of drawing the shoulder backward and outward, must still, as in other cases, be fulfilled. The only additional circumstance, therefore, necessary to be attended to here, is, not to elevate the shoulder, by pushing it upwards. This may be easily avoided, 1st, by omitting to raise the elbow, when applying the bandage; 2dly, by drawing the third roller a little tighter than usual.[3]

[3] This paragraph is so obscure in the original, that a
translation of it would be scarcely intelligible. Instead of a mere
translation, therefore, I have given rather a comment on what I
believe to be its true meaning. TRANS.

The fragments, being reduced to the same level, and brought into apposition, by this two-fold attention, will unite as in ordinary cases.

If the fracture exist at the end of the clavicle next to the humerus, the difficulty of their being displaced renders the application of the bandage less necessary. Prudence, however, demands that it be not altogether neglected.

§ VIII.

OF THE TREATMENT DURING THE FORMATION OF THE CALLUS.

The regimen to be pursued during the reunion of the clavicle, varies according to circumstances. It is impracticable to lay down general rules, applicable to all affections of this kind. Here, however, much more than in other cases, if the division of the bone be simple, and no unfortunate accident occur, it is always unnecessary to restrain the patient from his usual course of life, beyond the second or third day. But, though internal means are for the most part omitted in the treatment, the apparatus is a subject on which too much attention cannot be bestowed. With whatever degree of exactness it may be at first applied, it will soon become loose, and oppose a diminished resistance to the weight of the shoulder, and the action of the muscles. Hence, unless it be frequently examined, the fragments will be displaced. The following case furnishes a detail of the treatment subsequent to the reduction, to which, in ordinary cases, Desault had recourse.

CASE III. Mary Adel, aged thirty, as she was crossing a path covered with ice, in the severe winter of 1788, fell on the point of her left shoulder, and fractured the clavicle about the middle. Being brought to the Hotel-Dieu a few hours after the accident, she was dressed in the manner just described, and, as the fracture was simple, it was judged sufficient to make a slight diminution in the quantity of her aliment, during the two or three first days. The dressing was moistened every morning, with vegeto-mineral water, at the place corresponding to the fracture.

On the fourth day the piece of linen that surrounded the bandage was removed, for the purpose of examining the state of the parts. Every thing was found in its proper situation, and the covering was replaced till the seventh day, when the rollers appeared to be somewhat relaxed. The apparatus was taken off, and reapplied as at first, the compresses being carefully moistened with vegeto-mineral water, at the part lying over the fracture. After the third day the patient was permitted to return to her usual regimen. The third roller being a little deranged on the tenth day, it was taken off, and reapplied as at first, together with the sling. The fragments were examined and found in perfect contact. The patient was up during the whole day, walked about the house, and experienced no other inconvenience than that of not being able to use the left arm.

On the thirteenth day, the bandage was again reapplied, and allowed to remain till the sixteenth, when the patient having disturbed it, it was once more changed. At this period, the fragments, already firmly united, exhibited scarcely a vestige of the division they had sustained.

The reunion was complete by the twentieth day, when all the pieces of apparatus were dispensed with, except the bolster and the second roller, which were also removed two days afterwards, as they were found to be no longer necessary.

The continued inactivity of the limb, during the treatment, had occasioned a stiffness in the shoulder. This was gradually done away by making the patient move her arm in all directions, twice a day, each time, for the space of an hour.

On the twenty-ninth day she left the hospital, carrying with her nothing to remind her of the injury she had sustained. She was free from that uneasiness which is the consequence of a tedious and ill-managed treatment, during which the exercise of the limb has been neglected.

§ IX.

OF COMPLICATIONS.

44. We are in possession of but few observations particularly relative to the different complications, that may accompany fractures of the clavicle. The treatment, in such cases, varied according to circumstances, must be accommodated to the indications common to all fractures of this kind.

When splinters, displaced in different directions, whether adhering to the bone or not, irritate the soft parts, and, having passed through the integuments, appear without, most practitioners advise to remove them and cut off such parts as project beyond the fractured end of the bone, previously to reduction. This direction is founded on the severe pains which, in such cases, accompany the common treatment of the injury, and which the figure of 8 bandage always augments, by drawing the shoulder inward, and consequently pressing the soft parts against the projecting parts of the fragment, or the points of the splinters. But if the splinters, adhering as yet to each other and to the bone, by means of the periosteum, have not assumed the nature of foreign bodies, (that is, if they be not actually dead) it is always proper to replace them. It is here only that we meet with an occasion for that part of the process, of reduction denominated conformation,[4] which is never requisite in other cases.

[4] That process or operation in which the surgeon uses his hands
to effect the reduction and apposition of parts, which cannot
be accomplished by extension and counter-extension alone. If
a bone be broken into two or three pieces, mere extension and
counter-extension will not bring all the fragments into their
proper places, so as to restore the natural form of the part.
In such cases, the surgeon uses his hands to aid the action of
the extended muscles, and this is the process which our author
denominates _conformation_. The term occurs in many places in the
course of the work. TRANS.

A fragment which has penetrated the soft parts, but has not been long exposed to the air, disappears, and is replaced by extension, provided it be properly directed. Being retained afterwards in a state of constant extension, it can neither be displaced, nor cause pain by irritating the parts, which is the inevitable result of the figure of 8 bandage.

In cases of this kind, it is useful to protect the shoulder with a small splint, which may support the turns of the bandage, and prevent their pressure on the splinters, or the broken ends, which they might otherwise disturb. These precautions are alike indispensable when the fracture is double.

CASE IV. Francis Ricord, twenty-five years of age, was received in the month of July, 1790, into the Hotel-Dieu of Paris. On the preceding day, a piece of timber having fallen from a considerable height on his right shoulder, had broken the clavicle of that side into several pieces. Severe pains, which occurred at the moment of the accident, had continued throughout the night, and were still sensibly felt. The slightest motion of the part augmented them to such a degree, as to extort from the patient piercing cries.

The point of the shoulder being very much depressed, was also drawn perceptibly forward and inward; and a large echymosis, without any external wound, occupied its whole extent.

Desault being satisfied that the several fragments were all connected together, and that none of them was separated from the periosteum, placed, as in ordinary cases, the bolster under the arm, completed the reduction, and applied a splint along the course of the clavicle, after having, with his hands, brought the fractured pieces into contact. Confident, then, that the form of the part was perfectly restored, he applied the bandage, which was moistened with vegeto-mineral water, twice or thrice a day.

At the moment of reduction the pains ceased, and were felt no more till the fifth day, when the bandage being a little relaxed, admitted of a slight displacement of the fragments. This displacement was removed, and the pains along with it, by the reapplication of the apparatus.

During the six first days a very strict diet was enjoined. This, however, was dispensed with by degrees, till, on the thirteenth day, the patient returned to his usual regimen. On the seventeenth day, there remained nothing of the echymosis, but a yellow tinge, the customary consequence, of such an accident. The precautions inculcated in the preceding case, were employed also in this, and the patient was discharged perfectly cured, on the forty-second day from the time of his admission. Nor had he experienced, during his treatment, those severe and long continued pains, which, under a different management, so frequently accompany this kind of fracture.

EXPLANATION OF THE FIRST PLATE.

Fig. 1. A bolster made in the form of a wedge, intended to be placed
between the arm and the side of the thorax.

_a._ Its base, which should fit the hollow of the arm-pit.

_b._ Its summit reversed, against which the elbow is to be applied.

Fig. 2. The first roller applied for the purpose of fixing the
bolster against the side of the thorax.

_a a._ Oblique casts before, passing over the opposite shoulder, in
order to hold it up.

_b._ Oblique casts from behind, crossing the first ones on the
shoulder.

_d d._ Circular casts round the trunk, covering the bolster, which
they fix laterally.

Fig. 3. The second roller, applied to fix the arm against the bolster.

_a & b._ Portions of the oblique casts of the first roller, left
uncovered by this one.

_c c._ Turns of the second roller, covering those of the first,
loose above, and tighter below, for the purpose of drawing the
superior extremity of the humerus outwards.

_d._ Their passage over the side opposite to the bolster.

Fig. 4. The third roller intended to keep the point of the shoulder
raised.

_a a & b._ Oblique casts of the first roller, remaining uncovered.

_c c._ Turns of the second, seen through the opening of those of
the third.

_d._ Oblique casts of the third, ascending from the arm-pit over the
shoulder of the diseased side, to descend again behind, along
the arm, and pass under the elbow.

_f k._ A continuation of the preceding casts, reascending under the
sound arm-pit, and from thence behind the thorax, over the
diseased shoulder.

_e._ A continuation of the same casts, descending on the fore side of
the arm, passing under the elbow, and ascending again under the
arm-pit of the sound side.

_g._ The remainder of the roller, intended to be employed in circular
turns, in order to secure the casts _e_, and prevent them from
slipping outward.

Fig. 5. A sling which should be fastened to the oblique cast _d_
(Fig. 4), to support the hand.

_Fig. 1._

_Fig. 2._

_Fig. 3._

_Fig. 5._

_Fig. 4._

_Engrav'd by W. Kneafs._]

MEMOIR III.

ON THE LUXATION OF THE CLAVICLE.

§ I.

1. The clavicle, which forms a moveable abutment for the shoulder, and receives and sets bounds to most of the movements of that part, and of the arm, exhibits at its extremities, two articulations, essentially different from each other in their form, dispositions, and uses. These differences give rise to differences equally essential with regard to the dislocations to which they are subject.

2. On the sternal extremity, a small surface, convex from above downwards, and concave from before backwards, is fitted, by means of an intervening cartilage, to a much smaller surface of the sternum, concave and convex in opposite directions.

One capsule, two ligaments, viz. the interclavicular and costo-clavicular ligaments,[5] and the anterior portion of the sterno-cleido-mastoideus muscle, strengthen the connexion of these two surfaces, and tend, on one hand, to prevent their luxation, while, on the other, this luxation is favoured and facilitated by the following circumstances: 1st, the disproportion between the dimensions of the two articulating surfaces; 2dly, the mobility of the joint; and 3dly, by this joint’s constituting a kind of centre for the motions of the arm.

[5] I find in English books of anatomy no appropriate names for
these two ligaments. I am therefore obliged to translate the French
terms for them literally. The anatomist will have no difficulty in
recollecting their situation. TRANS.

3. On the humeral side, an elliptical surface, slightly convex, and inclined downwards, is immediately joined to a corresponding surface of the acromion, elliptical also, a little concave and directed upwards. Hence two kinds of inclined plains, which would be very liable to dislocations, by sliding easily over each other, were they not firmly secured by a capsule, by accessory fibres, by the intersection of those of the deltoid and trapezius muscles, and, above all, by two ligaments, the rhomboid and the conoid.[6]

[6] I do not recollect any terms in English works of anatomy
equivalent to these. TRANS.

Having laid down these preliminary considerations, let us proceed to examine, in particular, each kind of luxation to which the clavicle is subject.

LUXATION OF THE STERNAL EXTREMITY.

§ II.

OF THE CAUSES AND DIFFERENT KINDS OF DISPLACEMENT.

4. The sternal articulation of the clavicle experiences different changes, according to the different movements of this bone. If these movements be in a backward direction, the articulating surface is turned forward, straining the anterior part of the capsule, the corresponding ligament, and the extremity of the sterno-cleido-mastoideus muscle. If, on the other hand, they be in a forward direction, the posterior ligament, and the adjacent portion of the capsule are overstretched. In motions directed upwards, the costo-clavicular ligament, and the external and inferior part of the capsule, and in those directed downwards, the inter-clavicular ligament, and the internal portion of the capsule, experience a similar degree of tension.

5. Hence it follows, 1st. That the natural movements of the shoulder may be regarded as predisposing causes of luxation, because at the part where tension is excessive, the ligaments are disposed to give way, and suffer the sternal extremity to escape: 2dly. That the efficient causes will be, all external forces acting on the clavicle in such a way as to increase its motions beyond their natural degree, and beyond the resistance which the ligaments are capable of making. Thus a fall on the point of the shoulder, forcing it suddenly backward and inward, produces a luxation forward. But, in general, as the strength of the articular ligaments is superior to the resistance of the clavicle itself, a fracture takes place more frequently than a luxation, in the proportion of nearly six to one.

Though falls on the point of the shoulder are oftentimes productive of luxation of the clavicle, they are not the exclusive causes of that accident. Desault has seen the sternal extremity forced from its cavity by the knee being pushed violently against the middle of the back, while the shoulders were drawn at the same time backwards.

CASE I. A porter dislocated his clavicle in the following manner. He was carrying a very heavy burden, suspended from his shoulders by cords that passed under each arm-pit. Being desirous of resting himself by the way, he placed on a block the burden he carried, which slipping backward, drew his shoulders in the same direction, and at the instant of his attempting to retain it and prevent it from falling, produced a luxation of the clavicle.

7. It follows from what has been said respecting the different states of the articulation, during its various motions (4), that the clavicle is not equally liable to be luxated in every direction. Inclining naturally backward, but a very slight degree of motion in that direction is necessary, to effect a luxation forward. To produce a luxation backward or inward, it is necessary, on the other hand, that the humeral extremity of the bone should make a sweep at least three times the extent of that required in the preceding case. Besides, motions in this direction are accompanied with pain, particularly if they be made by force. Luxation downward is prevented, on the one hand, by the cartilage of the first rib, which presents to the bone an insurmountable barrier. On the other hand, to produce this kind of luxation, it would be necessary for the external extremity of the clavicle to be forced upwards, an occurrence very seldom occasioned by falls. Luxation upward, or over the superior edge of the sternum, must be the effect of a stroke, which, by depressing the point of the shoulder, and forcing it at the same time forward, presses the sternal extremity against the internal and superior part of the capsule, which, being thus lacerated, suffers a luxation to take place. But such a derangement of the articulating surfaces is very rarely produced by falls. Whence it follows, that of the different kinds of luxation of the clavicle, that in a downward direction is altogether impracticable. Those backward and upward, though possible, occur but rarely in practice; while that in a forward direction, on the contrary, is not an unfrequent accident. This tends to confirm the observations of practitioners, and particularly of Desault, whose immense collection on the subject furnishes examples of the last kind of luxation only.

8. In these luxations, there is for the most part, a rupture of the capsular ligament, and an escape of the bone through the opening. But sometimes the ligament is only preternaturally distended, and then the luxation is incomplete.

§ III.

OF THE SIGNS.

9. But whatever may be the causes or kind of the luxation, its diagnosis is always easy. If it be forward, the direction of the stroke which the shoulder has received, furnishes, at first, some ground of suspicion. The accident is certainly known by the appearance of a hard and unnatural protuberance in front of the sternum, and behind the extremity of the sterno-cleido-mastoideus muscle, by the existence of a sensible depression or hollow at the joint, and by the situation of the shoulder, which is pushed further backward, and is less projecting and more approximated to the trunk, than in its natural state. Add to these, a difficulty in performing motions in a forward direction, which, when somewhat forced, reduce, in proportion as they are accomplished, the size of the protuberance formed by the displaced end. The head is always inclined towards the side where the luxation exists; an attitude which relieves the painful drawing or tension produced in the sterno-mastoideus muscle, by the humeral extremity pushing it forward.

10. A protuberance over the superior edge of the sternum, a difficulty in raising the shoulder, the pain which results from attempting such a motion, the diminution of the protuberance which it occasions, the absence of the sternal extremity from its natural cavity, the approximation of the shoulder to the thorax, and its depression and diminished projection, compared to its usual state, afford evidence of a luxation upwards.

11. A luxation inward or backward, would be characterized by a projection of the shoulder exteriorly, by a difficulty in performing motions in a backward direction, by the alarming effects, which, as Petit remarks, the compression of the trachea would doubtless produce, and by a depression or hollow at the joint, more perceptible here than in the two preceding cases.

12. These appearances will be more or less striking, accordingly as the membranes, lacerated or only distended, offer a greater or less resistance.

§ IV.

OF THE REDUCTION.

13. To reduce a luxation, is, in general, to make the bone re-enter its cavity, by retracing, or returning along, the same route which it followed in escaping from it. Now, in a forward luxation, the displacement is from behind forward, in an upward one from below upward, in an inward or backward one from before backward, but, in each of the three, it is more particularly from without inward. In the first case, therefore it is backward, in the second, forward, in the third downward, but, in each of the three, more particularly outward, that the powers for producing extension must be directed.

14. Hence the method generally employed by most practitioners, recommended by almost every author who has written on the subject, adopted by Petit, Duverney, Heister, &c. and which consists in placing the knee between the shoulders of the patient, as a point of resistance, by the aid of which the shoulders may be drawn backward, fulfils only half of the indication of cure; because at the time that the humeral extremity is drawn backward, it is not directed sufficiently outward.

Hence a difficulty of replacing the bone sometimes occurs, a difficulty always removed, when, pursuant to the method employed by Desault in fractures of the clavicle (see Desault’s method), the arm is made to serve as a lever of the first kind, to carry backward and outward, the head of the bone, which is displaced in the opposite directions, when the luxation is forward. This method possesses the advantage, not only of giving the powers of extension a proper direction, but also of increasing them to a degree even beyond what is necessary for effecting a reduction, by removing them further from the resisting force. Hence it is unnecessary to adopt any particular measures for restoring and preserving the form of the part, as the extension is alone sufficient for that purpose.

These principles, evidently applicable in effecting a reduction, are still more strikingly so in the means destined for retaining it. Let us apply what I have just said, to a case of dislocation in a forward direction. It will be easy to transfer it afterwards to the other kinds of luxation.

§ V.

OF THE MEANS OF RETAINING A REDUCTION.

15. Few luxations are so speedily reduced, but few are more easily displaced again, than that of the clavicle. This disposition is the reverse of that of most other luxations, which are reduced indeed with difficulty, but seldom afterwards suffer a displacement. The cause of this we find, 1st, in the extreme mobility of the clavicle, to which all the motions of the arm are communicated; 2dly, in this further consideration, that most of the muscles, which have their insertion towards the shoulder, tend to draw this bone inward, when the ligaments, in consequence of being either broken or distended, as happens in this accident, do not offer a sufficient resistance.

16. From this two-fold cause of displacement, arises a two-fold indication in the arrangement and application of the apparatus. These are, 1st, to render the clavicle immoveable, by restraining every kind of motion in the shoulder and arm; 2dly, to retain the extremity of the clavicle outward, a direction opposed to that in which it has a tendency to be displaced. But if to those indications we compare the forms of apparatus hitherto used, we will readily perceive that they are insufficient to fulfil them.

17. The figure of 8 bandage, so generally in use, and all the various modifications, under which it has been revived, without being improved, fix the clavicle in the very direction most favourable to a displacement, and even do it in the very manner in which that accident is sometimes brought about; as maybe seen in the history of the case of the porter (6). This bandage does not, under any of its modifications, prevent the motions of the shoulder, because it does not restrain those of the arm, which remains free and unencumbered. Far from constituting an antagonist power to, it even co-operates with, that which has produced the displacement. (For further light on this subject, see what has been already said on the fracture of the clavicle, pages 22 and 25.)

Bell, in condemning the figure of 8 bandage, not so much because of its action being insufficient, as because of its obstructing respiration, proposes, as a substitute for it, a kind of machine analogous to the iron cross of Heister, which, being fixed by straps passing under the arm-pit, and round the neck and body, is intended to retain the parts firm and immoveable. But the motions of the arm not being restrained, nor the action of the muscles of the shoulder opposed by an antagonizing power, places this piece of apparatus in the same class with those, which, from not being devised and constructed on a proper view and conception of the causes of displacement, have no affinity to rational practice.

18. The apparatus for a continued extension, invented by Desault, for fractures of the clavicle, fulfil here all those indications in which the others fail.

By this, 1st. The aim, being firmly fixed against the side, by means of the roller (_c c_ Fig. 3), can communicate no motion either to the shoulder, or the clavicle. 2dly. The shoulder itself, being forcibly drawn outward, with the upper extremity of the humerus, by the action of the kind of lever into which this bone is converted, and to which the bolster (_a b_ Fig. 1) serves as a fulcrum, cannot, by its movements, derange the luxated bone. 3dly. The sternal extremity, being drawn both by the muscles which tend to displace it inwardly, and by the bandage which acts on it in an opposite direction, remains fixed between those two antagonizing forces, which thus destroy each other. Hence the apparatus of Desault, when accurately applied, offers to both of these powers of displacement, a resistance perfectly calculated to combat them.

20. We must, however, admit that this apparatus partakes of one inconvenience, common indeed to all bandages, but which is perhaps more particularly applicable to this in consequence of the numerous casts of the rollers that form it, namely, the great facility with which it becomes relaxed. Hence one cause of displacement, which the most exact and scrupulous attention cannot at all times prevent.

CASE. Desault had, for a long time, the care of a patient, whose luxation, having been neglected for four days, was reduced on the fifth, by a surgeon, who, for the purpose of retaining it, employed a bandage of a particular kind. An hour afterwards, a motion of the shoulder backward, displaced the luxated extremity: a new reduction was the consequence; on the day following, another displacement, and so on in succession, for ten days, at the expiration of which, Desault being consulted, applied to the part the bandage formerly described.

On being examined the next day, the apparatus was found in a favourable state. On the day following, a slight displacement rendered necessary a new application of the bandage, which, this time, continued longer than before. But, about the expiration of the third day, the projection of the bone was again considerable. Finally, the patient recovered, with a very perceptible protuberance in front of the sternum, and a difficulty of motion, great at first, but less afterwards, and which exercise succeeded ultimately in removing.

21. The application of the apparatus differs from that intended for a fracture of the clavicle, only in this, that it is of service to place on the luxated extremity, graduated compresses,[7] calculated to make pressure backward and outward, and which are to be secured by the turns of the roller (b Fig. 4).

[7] Compresses laid one upon another, of which the upper one is
still the smallest, not in relation to thickness, but as far as
regards length and breadth. TRANS.

A second precaution, not less essential, is, to push the humeral extremity of the clavicle, a little forward, and fix it in that direction, in order that the sternal being directed backward, may be removed from the place[8] through which it has a tendency to escape.

[8] The rupture in the capsule that surrounds the joint. T.

22. Desault almost always obtained complete success by this process, and by the most accurate attention to prevent the relaxation of the bandage. In the mean time, a stiffness, more or less considerable, always remains in the joint for a long time after the reduction, and it is not unfrequently a month or two before the part recovers its usual facility of motion.

The following cases, collected by Brochier, confirm the doctrine for which I have been contending.

CASE II. A man luxated the clavicle by falling on the point of his shoulder, and forcing it backward. He was immediately brought to the Hotel-Dieu, where Desault demonstrated to his pupils, that the head of the bone, carried in front of the sternum, was removed nearly an inch from its natural cavity, the ligaments of which were no doubt lacerated.

Here, as in the fracture of the clavicle, the application of the bandage answered the purpose of reduction, and removed the protuberance formed by the extremity of the bone.

The patient, being strong and vigorous, and having received besides a violent contusion, was bled twice, and confined to a low diet. On the following day, no derangement; on the fourth day, a slight displacement of the bone, the rollers a little relaxed, bandage applied anew. Eighth day, no sensible displacement. Eleventh day, some swelling around the joint; compresses, wet with vegeto-mineral water, ordered to be frequently renewed. Twentieth day, the swelling almost gone, and no disposition to a displacement; the apparatus was removed; motions at first difficult, and contracted. Twenty-ninth day, more free and easy. Thirty-fourth day, returned to their natural state.

CASE III. Mary Rivert luxated her clavicle, on the seventh day of January 1789. Being brought some time afterwards, to the Hotel-Dieu, she was treated in the same manner as the foregoing patient, and with the same result, except that a very slight protuberance remained at the extremity of the bone, and the confined state of the motions continued a little longer. Desault related, in his lectures, other instances of cures being performed without the least remaining deformity.

After all, even supposing the method just proposed, to possess no other advantage, than that of diminishing the protuberance of the bone, which, under other modes of treatment, is almost inevitable, and by that means preventing the motions of the part from being confined, it would still, without doubt, be a great step towards the perfection of the art.

23. Should a luxation backwards occur, the same process of reduction should be adopted, with this difference, that the extension ought to be made forward and outward; and the same apparatus should be applied for retaining the parts, except that the humeral extremity ought to be directed a little backward, in order that the sternal extremity, being carried forward, may be removed from the place of laceration in the capsule.

In like manner, should the bone be luxated upwards, it would be necessary to draw the arm outwards, and elevate slightly the point of the shoulder, for the purpose of depressing the sternal extremity.

LUXATION OF THE HUMERAL EXTREMITY.

§ V.

OF THE KINDS OF LUXATION.

24. Luxations of the humeral extremity of the clavicle, take place, according to Petit, in two ways, 1st, under, and 2dly, over the acromion. If we attend to the disposition of the articulating surfaces, the superior of which rests obliquely on the inferior; if we examine, in particular, the relative position of the corocoid apophysis with respect to the clavicle, it will be difficult to conceive how the first kind of luxation can occur, without being accompanied by a fracture. Yet some facts added by Desault to the doctrine of Petit, on this point, seem to demonstrate the possibility of the clavicle sliding under the acromion. As to luxations forward and backward, the mobility of the shoulder, the facility with which it yields to motions impressed on it in these two directions, and the want of a resisting power, make the two bones that compose it, move together, still preserving their relative position.

The luxation upward, then, is that which ought chiefly to occupy the attention of the practitioner. Yet even this is less frequent than the luxation of the sternal extremity, on account of the very great strength of the retaining ligaments, which, when this luxation occurs, must be, if not lacerated, at least very much distended.

§ VI.

OF THE MECHANISM AND THE APPEARANCES.

25. A fall on the point of the shoulder is the most frequent cause of this luxation. The two articulating surfaces, representing an inclined plain, slide along each other, in such a manner, that that which belongs to the acromion is pushed inward, while that of the clavicle is directed outward. The capsule being stretched, gives way, and then the displacement is manifested by a preternatural protuberance over the acromion; by a stiffness in the motion of the shoulder; by the direction of this part, which is evidently drawn inward and downward; by the inclination of the head of the patient to the side affected; by a bending of the body; and by severe pains in the luxated part. These characters are essentially distinct, and ought to have prevented the error of Galen, who mistook a case of this kind for a luxation of the os humeri downward. Hippocrates and Ambrose Pare have foreseen the possibility of this mistake and even warned young practitioners to be on their guard against it. But, as citizen Sabattier judiciously observes, the position of the head of the humerus, under the arm, in a luxation of that bone, will remove all uncertainty respecting the nature of the injury.

§ VII.

OF THE REDUCTION AND THE MEANS OF RETAINING IT.

26. The reduction, in this case, is generally attended with but little difficulty. The acromion being drawn outward, by the upper end of the os humeri, which, by means of a fulcrum placed under the armpit, is made to act as a lever of the first kind, is restored, without much trouble, to its natural contact with the corresponding surface of the clavicle. But, it soon becomes deranged again, unless it be retained in its place by a proper apparatus. Now, on what principle ought this apparatus to be constructed? To prevent the displacement, which generally occurs from without inwards, it ought evidently to act from within outwards. Whence it follows, that the rollers in the figure of 8 bandage, recommended in this case by all writers, instead of preventing, actually favour the displacement (17), because they act in the same direction with, and therefore assist, the powers that produce it.

27. Here, in like manner as in the preceding case, the bandage of Desault fulfils with precision the indications of cure, because, by it, the point of the shoulder is, particularly, drawn outward; and if, in certain cases, a slight projection of the humeral extremity still remains, it is to be attributed to the inefficacy of the means of execution, and not to the principles on which they are founded.

MEMOIR IV.

ON FRACTURES OF THE ACROMION, AND OF THE LOWER ANGLE OF THE SCAPULA.

§ I.

FRACTURE OF THE ACROMION.

1. There is no part of the scapula more liable to fractures than the acromion. Being but slightly covered by the soft parts, this insulated kind of appendix has not, in all positions of the humerus, a solid point of support. A strong muscular force oftentimes acts on it with great energy. Being large in front, it presents in that direction a considerable surface to receive the action of external bodies. Whence it follows, that if it is not oftentimes broken, this is to be attributed, not so much to its natural disposition, as to the position which it generally assumes in falls.

2. The fracture, which is almost always transverse, is sometimes at the summit, and sometimes at the base of this apophysis, and is usually produced by a violent shock from a body falling on the shoulder, by a blow received on that part, &c.

3. But in whatever place it occurs, it greatly resembles a fracture of the humeral extremity of the clavicle, of which the acromion appears like a continuation. There is accordingly a strong analogy between the phenomena, the consequences, and the modes of treating these two kinds of fractures.

4. This accident is characterized, 1st, By a severe pain experienced by the patient, at the place of the fracture. This pain is increased by the elevation of the arm, which, generally hangs motionless down along the side. 2dly, If the humerus be removed from the trunk, the hand being at the same time placed on the acromion, the extremity of this apophysis is felt sinking downward, creating thereby an evident depression in the part. 3dly, Generally, the two fragments lose, of their own accord, their relative position; and unless the precaution about to be mentioned be used, their displacement becomes manifest, being produced by the weight of the arm, and the contractions of the deltoid muscle. 4thly, The head is inclined to the affected side.

§ II.

OF THE REDUCTION.

5. Two different processes have been long in use for the reduction of fractures of the acromion. One consists in elevating the arm almost to a right angle with the body, in order, as Heister remarks, to throw the deltoid muscle into a state of relaxation, and then to be able, with the fingers, to place the fragments in their natural situation. In the other mode, the humerus is suffered to retain the position it has assumed, that is, to hang down the side; the surgeon then taking hold of the elbow, pushes it vertically from below upwards, in such a manner, that the head of the bone, pressing against the acromion, elevates and replaces it.

6. Petit seems to have adopted indiscriminately these two methods, one of which, however, is greatly superior to the other. Indeed, it is evident, that if the humerus be removed from the trunk, its head will necessarily sink down in the glenoid cavity. Being thus separated from the fractured apophysis, it leaves beneath it a hollow or vacancy, into which the fragment will be pushed, should it be in any measure, compressed by the casts of the roller, during the application of the bandage.

7. On the other hand, if the arm still fixed against the side, be pushed upwards, it will afford to the acromion a solid point of support, which, during the application of the apparatus, will prevent its displacement downwards. This consideration is unquestionably of moment, during the process of reduction; but ought more particularly, to command the attention of the practitioner, in the choice of means destined to maintain the reduction.

§ III.

OF THE MEANS FOR MAINTAINING THE REDUCTION.

8. As the displacement is most likely to occur downwards, particularly in motions of the arm, it is necessary that a continued resistance be opposed to this tendency. But this resistance should be made by the head of the humerus, which, if properly directed, will represent, during the treatment, a kind of splint, which art ought to render fixt and immoveable lest, being contiguous to the divided surfaces, it might derange, by its motions, the work of nature in effecting their reunion. Hence it follows, that the precise and immediate intention of the whole apparatus destined to support fractures of the acromion apophysis, is, 1st, to keep the head of the humerus constantly elevated or pushed upwards: 2dly, carefully to prevent all motions of the arm and shoulder.

9. If the means, heretofore employed in this fracture, be examined, it will be perceived that they by no means fulfil this twofold indication.

A compress placed immediately over the fracture; a roller passed round this to secure it; a ball or bolster[9] put into the hand; the fore-arm supported in a sling; such is the apparatus recommended by Petit. In addition to this, Duverney judiciously advises to keep the sling elevated, for the purpose of keeping the head of the humerus applied under the fractured pieces. He employed also the spica-bandage which has been equally recommended by Heister.

[9] Une pelotte.

10. But, in the employment of these means, the arm, not being confined against the trunk, can move with ease, and derange the fragments, and, therefore, the second indication is not fulfilled. Will even the first be fulfilled? By no means. The sling, being soon deranged, by the movements of the arm, which are oftentimes involuntary, suffers it to sink down again, and then the fragments, being no longer supported, are displaced. Hence the difficulties attending the treatment, difficulties which have not escaped the notice of authors, and which Heister thus expresses: “_Nemo ita curari solet_, _ut brachium postea, liberi sursum attollere queat_,” an observation, which the celebrated Cheselden made before him, in describing the scapula.

11. These inconveniences will be avoided, by fixing the arm, as recommended by Desault, firmly against the trunk, by converting, so to speak, the arm and the trunk into one single and solid piece, in such a manner, that the humerus having no other motions but those in common to it and the thorax, may not be able to communicate any others to the fragments, which are supported by its head. This advantage can be easily obtained, by means of the bandage, already described, for fractures of the clavicle, modified agreeably to the circumstances of the case, in which it is to act.

12. A bolster or pad of an equal thickness in all its parts, is placed under the arm. The arm is then to be pressed down on this, in like manner as in the bandage for the clavicle. The fractured apophysis is now to be covered by two compresses; one extending from the clavicle to the spinous processes of the vertebræ, while the other, lying over this, and running in a contrary direction, crosses it at the place of the fracture. The whole is then to be secured by a roller, which, starting from the arm-pit of the sound side, pursues nearly the same course with that destined, in fractures of the clavicle, to retain the shoulder upwards. (See what has been said on this subject, when treating of the structure of the bandage.)

13. By this mean, the two-fold indication of keeping the humerus immoveable, and directed upwards (8), is evidently fulfilled, as I have already proven at full length, when treating of fractures of the clavicle; and a reunion, without deformity, may be looked for, of which we have an instance in the following case, recorded by Derrecagaix.

CASE I. Nicholas Gay, aged twenty-nine, was struck, in passing under a decayed building, by a stone, which, having become loosened, fell on the point of his shoulder. In an instant he experienced severe pain, and a difficulty of moving his arm, particularly upwards. Soon afterwards there occurred a swelling of the shoulder, and a large echymosis at the place where the blow was received. The pain, not so acute during a state of rest, was increased by the motions of the arm, and even by leaning the head towards the opposite side, which latter circumstance was, no doubt, owing to the contraction of the trapezius muscle.

A surgeon being called, judged it sufficient to make use of discutient applications, to which the swelling and the echymosis appeared to yield in the course of a few days. On a more accurate examination, a fracture was discovered, supposed to be in the external part of the clavicle, and for which the patient was sent to the Hotel-Dieu.