263. Severe effects do not always take place in such cases in the course of the first treatment, but occur afterward; or the unfavorable symptoms, never having been entirely removed, increase so much at a later period as to render the aid of operative surgery necessary for the removal of the bone, in order to save life.

M. A. Farnham, aged twenty-three, a stout, healthy-looking girl, received a blow, two years before, from a stone falling from a door-way under which she was passing; it struck her upon the left side of the head at a spot an inch anterior to the parietal prominence, the weight of the stone and the space through which it fell making the estimated force with which it struck the head equal to sixteen pounds. The immediate effect of the blow was insensibility, followed by acute fixed pain in the head, which has ever since continued to mark the seat of injury. A week after the receipt of the blow she began to lose the power of moving the right arm, there being, however, no loss of sensation or any disturbance of the cerebral functions.

During the following twelve mouths the symptoms remained unchanged; this period was spent in several London hospitals; not having derived any relief while in any of these institutions, she became an out-patient of the Westminster Hospital.

The arm and leg of the right side were quite paralytic, the former, which had previously been flaccid, having now become remarkably rigid, its temperature being below that of the opposite side; vision, particularly of the left eye, imperfect, the pupils, however, acting naturally; hearing on that side also affected; memory bad; respiration frequently slow and almost stertorous; the countenance had assumed a dull, heavy expression, and she manifested an unusual tendency to sleep.

April 1st, 1841.—Mr. Guthrie this day removed a disk of bone from the exact point in the parietal region to which she referred the pain. The portion of bone presented no evidence of disease; its thickness varied from two and a half to four lines, the latter measurement corresponding to the part most distant from the sagittal suture; the vessels of the diploe bled freely, the dura mater was quite healthy, and without any very evident motion.

On visiting her an hour after the operation, she raised the previously paralytic arm several inches from the bed, and was able to bend and extend the fingers. The pain in the head was considerably less, and her countenance, before dull and heavy, was now remarkably animated. Sensation had returned in the arm, and partially in the leg. Her pulse was calm, and the skin cool.

Ten hours after the operation she was attacked with rigors, followed by pyrexia and all the symptoms of commencing inflammation of the brain. By the immediate abstraction of blood, which was three times repeated during the succeeding twelve hours, whenever the pain in the head or the force of the circulation increased, every bad symptom was removed. In the course of three days the paralysis had completely disappeared, sight and hearing again became perfect, and after passing through a speedy convalescence, she quitted the hospital completely recovered.

She has since had some relapses of pain and uneasiness in the head, but is altogether a different person, although of a very hysterical temperament. The cicatrix on the head is firm, and she considers herself to have been cured by the operation.

264. The inner table is sometimes broken in a peculiar manner, and to this attention was first drawn in my lectures, since trepanning has ceased to be the rule of practice in all cases of fractures. It occurs from the blow of a sword, hatchet, or other clean-cutting instrument, which strikes the head perpendicularly, and makes one clean cut through the scalp and skull into the brain. This kind of cut is usually considered as a mere solution of continuity, and not as a fracture, the bone being apparently only divided, with scarcely any crack or fissure extending beyond the part actually penetrated by the instrument. When the outer table alone has been divided, the wound in the scalp should be treated as a simple incised one, and united as quickly as possible, a practice of which I have seen several successful instances. When the instrument even penetrates to the diploe, the same course should be pursued; for although the external wound may not unite by the adhesive process, and some small exfoliations may occur, it is not common for serious consequences to ensue under that strictly antiphlogistic plan of treatment to which all persons with such injuries should be subjected.

265. When the sword or ax has penetrated the inner table, the case is of a much more serious nature; for this part will be broken almost always to a greater extent than the outer table. It may be separated from it, and driven into the membranes, if not into the substance of the brain itself, the surface of the bone showing merely a separation of the edges of the cut made into it. These cases should all be examined carefully. The length of the wound on the top, or side, or any part of the head which is curved and not flat, will readily show to what depth the sword or ax has penetrated. A blunt or flat-ended probe should in such cases be carefully passed into the wound, and being gently pressed against one of the cut edges of the bone, its thickness may be measured, and the presence or absence of the inner table may thus be ascertained. If it should be separated from the diploe, the continued but careful insertion of the probe will detect it deeper in the wound. A further careful investigation will show the extent in length of this separation, although not in width; and will in all probability satisfy the surgeon that those portions of bone which have thus been broken and driven in are sticking in or irritating the brain. In many such cases there has not been more than a momentary stunning felt by the patient; he says he is free from symptoms, that he is not much hurt, and is satisfied he shall be well in a few days.