281. A ball or other foreign substance may penetrate the brain directly or obliquely. When the ball penetrates the brain directly, it is not often that it can be removed, and the sufferer very rarely survives beyond a few days, even if the ball has been extracted; more particularly if the injury have occurred in the anterior part of the substance of the brain; several persons, however, have recovered, in whom the injury occurred toward the back part of the head, the ball being allowed to remain. It will be better in all such cases to allow the ball to remain, which it will often do for many days, until circumstances render it necessary to endeavor to find it. When it can be felt immediately under the surface of the brain, it ought to be removed like any other foreign substance.
Dr. Rogers relates the history of an excellent case, in which a young man aged nineteen received a wound on the frontal bone, just above the center of the left superciliary ridge, from the bursting of a gun on the 10th of July. It was not until the 4th of August that he discovered a piece of iron lodged within the head, in the bottom of the wound, (from which a considerable quantity of brain had come away,) which he extracted the next day. It proved to be the breech-pin of the gun, three inches in length, and three ounces in weight. By the tenth of December his patient was perfectly cured.
When a ball strikes the head obliquely, it may enter and pass out or lodge. Nearly all these cases die, but one occasionally escapes, and none should be allowed to die without assistance. When the entrance and exit of the ball are obvious, and not far distant from each other, the splinters of bone should be removed; and if the little bridge between the openings should be injured, the whole should be taken away by the straight saw; an operation which cannot, however, be necessary in the first instance, if the portion of bone be apparently sound.
At the battle of Talavera, a soldier of the 48th Regiment was brought to me in a state of insensibility; he had received a musket-ball on the upper part of the right side of the frontal bone, where it had entered, and had evidently passed backward; it could be followed by the probe rubbing against the bone for nearly four inches. The scalp over this point was soft, as if blood were effused below; and on dividing it, a fracture was seen bulging rather outward. The trephine was applied forthwith, and the bone removed, together with the ball, which only wanted a little more impetus to have come through. The brain was injured, and the man died two days afterward.
A French grenadier was wounded at the battle of Salamanca by a musket-ball, which struck him on the right side of the head, penetrated the temporal muscle, and lodged in the bone beneath, giving rise to symptoms of compression. On dividing the parts, I found that the ball had fractured and driven in a part of the temporal bone, one portion of the ball being above, and the other below the broken bone. The upper half of the ball was readily removed, but several small portions of bone were raised by the elevator and forceps before the remaining portion of the ball could be drawn from under the bone, which was not depressed, the ball having been cut in two by its edge. The dura mater was bruised, but not torn through. The wound suppurated freely; several pieces of bone exfoliated, and the patient was ultimately discharged in progress toward a cure.
A small ball sometimes becomes so flattened by striking against the skull as to remain undiscovered when care is not taken in the examination. A soldier was wounded at the storming of San Sebastian by a ball on the side of the head, which was supposed not to have lodged. The wound did not heal, a small opening remaining, although no exfoliation took place, and the bone did not seem to be bare. On dividing the scalp to ascertain the cause of the delay in healing, a small ball, quite flat, was found; it had sunk down a little below the hole left for the discharge to which by its irritation it had given rise.
When a larger ball or a piece of a shell strikes the head, the fracture is usually extensive, and portions of bone, or a piece of the shell itself, are often lodged in the substance of the brain. There is nothing peculiar in the management of these cases, which are for the most part unfortunate.
282. A suture may be separated by a musket-ball, which impinges with a moderate degree of force directly upon it, but not without great danger. It can, however, only happen in young persons in whom the sutures are not obliterated as they are in elderly ones; in general it takes place when the ball happens to lodge as it were between the bones concerned in the formation of the suture. The first case of the kind which came under my observation occurred at the taking of Oporto. I met with a second at Albuhera, a third at Salamanca, and a fourth in a slighter degree at Orthez.
A heavy dragoon was wounded at the battle of Salamanca by a musket-ball in the body, which caused him to fall from his horse, injuring the top of his head. Little attention was paid to him until mischief was suspected from the lethargic state into which he fell, which could only be attributed to the blow on the head, where a tumor was observable. This, on being divided, showed a separation of the edges of the sagittal suture, from which some blood flowed. Two crowns of the trephine were applied on the twelfth day, in order to admit of the free discharge of some blood which had been extravasated from a wound in the longitudinal sinus, after which the symptoms subsided, and the patient gradually recovered.
A ball may pass apparently through the fore part of the head from side to side without doing much mischief beyond depriving the sufferer of sight. It does not in these cases injure the brain, but passes immediately below it and through the back part of both orbits. In four such cases the recovery was rapid, but the blindness was irremediable.