Elements of Surgery

by Robert Liston

Osteosarcoma may supervene on spina ventosa—morbid action occurring in the parietes, and morbid deposit ensuing, as in the following instance:—The patient was a male, aged twenty-one. Swelling had existed for a considerable time at the posterior part of the lower jaw on the left side. The wisdom tooth and last large grinder, their pulps probably having been blighted, never appeared, and the swelling occupied their situation. The bone was expanded on each side; the upper surface of the tumour was soft, its growth had been gradual, and no great pain or uneasiness was experienced. I cut out an oval portion of the cyst where it projected into the mouth, and well-digested matter was evacuated; a seton was then passed out near the angle of the jaw, and worn for some weeks. The plates of the bone approximated, the cavity contracted, and the discharge ceased. Two years afterwards rapid swelling took place in the same situation, suppuration occurred, and the matter was again discharged by incision; the tumour then subsided. Again inflammatory swelling occurred twelve months afterwards; the same course was followed and the patient relieved. A hard swelling now occupies the jaw from its angle to the canine tooth, it is increasing in size; the necessity for its removal is apparent, and has been decided upon. Very shortly after writing the above, the patient submitted to the disarticulation and removal of fully half of the jaw,

represented here. He made a rapid recovery, and showed himself to me and the pupils at the hospital a short time since, and fully five years from the time of the operation, in remarkably good health, and very little deformed by his loss. His whisker effectually conceals the mark of the incisions.

But in general, after free evacuation of the purulent matter from a bony cavity, even of very large size, the space between the parietes diminishes rapidly, the distended and attenuated bone contracts and is condensed, the new deposition is absorbed, and the parts regain their natural and healthy appearance.

In the slighter cases of spina ventosa, removal of the offending teeth or portions of teeth, is generally sufficient; the matter escapes freely enough from the sockets, and the discharge soon ceases. When the cavity is considerable and its parietes thin, a counter-opening at the base of the jaw is required; and it is often of advantage to introduce a small cord from the opening in the mouth through the counter-opening, and to continue its use for a short time, drawing it backwards and forwards in the cavity occasionally. For making the counter-opening and placing the seton at the same time, a strong needle in a fixed handle is most convenient. This practice I have employed in a good many instances, and can confidently recommend as successful. In a large spina ventosa, not complicated with solid growth, the parietes may be removed freely and with safety; the cavity is dressed to the bottom, and gradually fills up by granulation. The division of the integuments to expose the tumour must vary according to the circumstances of the case; the incision of the bone will generally be accomplished by a strong bistoury. Such procedure will seldom fail in procuring a cure, and is less severe, less dangerous, and productive of less deformity, than division of the jaw and entire removal of the diseased portions, an operation which can very seldom be warranted for spina ventosa. In the following case, the tumour was the largest of this kind which I have met with in the jaw, and yielded to the treatment just noticed. The patient was a male, æt. 48; he applied to me in 1821. The tumour had been of three or four years’ duration, equalled a large fist in size, and involved the left side of the lower jaw at the junction of the ramus with the body of the bone. The sac extended behind the coronoid process, and downwards, through the substance of the jaw, amongst the hyoid muscles. Several carious teeth and stumps were imbedded in the swelling; the projection was chiefly lateral, the parietes were yielding, and the line of the jaw could be traced from below. There was occasional slight discharge of purulent matter from the neighbourhood of the involved teeth. The cheek was laid open, and the bony and cartilaginous parietes of the cavity completely removed; the bleeding from the bony surface was arrested by cautery and pressure.

The soft parts united kindly, and the patient obtained a rapid, perfect, and permanent cure, returning home with the cheek united in ten days after the operation.

Solid Tumour of the Lower Jaw—Osteosarcoma—commences in the internal structure of the bone, frequently in the neighbourhood of stumps. The origin may be traced to external injury of the part; or the disease may take place in the jaw, either along with osteosarcomatous tumours of other bones, or subsequently to their development; in such circumstances a peculiar disposition of the system is the only cause that can be assigned. The tumour generally occupies the lateral parts of the bone. Its growth may be either slow or rapid, and is attended with dull uneasiness, rather than acute pain. At first the morbid deposit is confined to the cancellated texture, but as it increases the external laminæ are distended, and at last give way at one or more points, and the tumour protrudes fungous into the mouth. The consistence of the mass is various, it may be soft and brain-like, or cartilaginous, mixed with bone and fibrous matter in various proportions; but the anatomical characters of these tumours have been already detailed, and need not be here repeated. The features are much deformed, the swelling seriously incommodes the neighbouring parts; the teeth loosen and drop away, and fungi arise from the sockets; a fetid, thin, sometimes bloody discharge is secreted copiously, and the health declines. The part protruding around the gums is deeply indented by the teeth of the upper jaw; it separates the jaws to a greater or less extent, prevents closure of the lips, induces salivation, and impedes the taking of nourishment. The tumour is one of those which are apt to be reproduced, and if unmolested, gradually undermines the system, and ultimately the patient perishes very miserably. At one time every instance of it was regarded as hopeless; but of late a great many tumours, in various stages of advancement, have been removed successfully by British and foreign surgeons. In some instances, the portion of the jaw containing the morbid growth has been sawn out; in others, one half of the bone, or more, has been removed by disarticulation, after being divided beyond the diseased part. A very few weeks ago, I had occasion to remove fully three-fourths of this bone, from the site of the first large molar on the left side to the condyle of the right. The patient, an elderly female, is convalescent. The operation is severe, and to a spectator shocking enough; but it can be undertaken with safety, and in most cases with almost a certainty of favourable termination. In no other way, assuredly, can the disease be eradicated. Partial excisions, applications of the cautery, &c., only hasten the malignant process.

To expose the tumour and admit of the bone being readily divided, incision of the soft parts requires to be extensive. And previously to determining on the plan of operation, the extent of the disease must be ascertained accurately. If, for example, the tumour is included between the lateral incisor tooth and last molar on the same side—these teeth must be extracted to permit division at these points. A semilunar incision may then be made along the base of the jaw, the horns of the incision pointing upwards and passing over the space which was occupied by the extracted teeth. The flap is dissected up, and the membrane of the cheek divided along the line of incision. The bistoury is then carried along the inside of the bone so as to divide the membrane of the mouth and separate the attachments of the muscles. The tongue is pushed aside, and a copper spitula placed under the jaw at the part to be divided, in order that the soft parts may not be injured during the sawing. A small narrow saw, or one commonly known by the name of Hey’s, is applied to the bone at the points where the teeth were extracted, and by a few motions of this instrument a notch is made of no great depth; a pair of strong cutting pliers are placed in the track, and by them division of the bone is accomplished with equal neatness, and much more rapidly than if the use of the saw had been continued. The pliers should be strong in every point, and the handles long, to afford the advantage of a powerful lever. In edentulous subjects, as the one alluded to above, there is no necessity for using the saw at all: the bone is at once and easily cut by the forceps. The chain saw has been recommended for performing the section of the bone, but I have not yet seen one to be depended on; it is not only slow, but uncertain, in its operation.

The incisions may be made otherwise. The cheek may be divided by passing through it a long narrow bistoury, close to the anterior edge of the masseter muscle, and carrying the instrument forwards and through at the angle of the mouth. From each extremity of this incision another is made downwards, the anterior one inclining forwards, the other backwards. By reflection of the flap thus formed, the bone is exposed more easily, rapidly, and perfectly, than by the former mode of incision. The objection to this mode of procedure is the deformity occasioned by the scars, though, if care is taken in putting the edges together, this is very slight indeed, and not remarkable.

In either method, no artery, except the facial, requires to be secured by ligature. After division of the bone, the attachments of the tumour, which may not have been separated previously, are cut with the bistoury, the cavity is filled lightly with charpie, and the incisions are carefully and neatly put together, and retained by points of interrupted and twisted suture; the latter form of suture being adopted at those points where accurate coaptation is most important.