Weapons, that lodge in the body, are very often troublesome to extract. For there are some difficulties, which arise from their different forms; others from the situation of the parts, into which they have penetrated. Now every weapon is extracted, either on that side, where it entered, or on that, to which it points. In the first case it returns by the way itself made: in the other, it receives one from the knife; for the flesh is cut directly upon the point of the weapon. If the weapon does not lie deep, but is in the surface of the flesh, or at least has not past through large veins and nervous parts, the best method is to pull it out by the way it entered. But if the space, through which the weapon must return, be greater than that, which is to be laid open, and it has already past through veins and nerves, it is more expedient to open what remains, and extract it that way; for it is both nearer at hand, and is drawn out with more safety. And in one of the larger limbs, if the point of the weapon has past beyond the middle of it, it will heal the more readily for being open quite through, as the remedies will act at both extremities of the wound. But if the weapon is to be brought back the same way, the wound must be enlarged, that it may move the more easily, and occasion the less inflammation; which will be considerable, if the body be lacerated by the weapon as it returns. And in like manner, if an opening be made on the opposite part, it ought to be so large, as not to be increased afterwards by the weapon passing through it. In either case, the greatest caution must be used not to cut a tendon, or a large vein, or an artery. When any of these are exposed, it must be laid hold of with a blunt hook, and drawn aside from the knife. When an incision is made large enough, the weapon must be taken out: then also the same method, and the same precaution are to be used, lest any of the abovementioned parts should be injured, which lie under the weapon, that is to be extracted.

The foregoing directions are general: besides which, there are some particular rules for the several kinds of weapons, which I shall immediately subjoin. Nothing is so easily lodged in the body as an arrow, and it goes to the greatest depth. The reasons are, both that it moves with great force, and because it is small. Therefore, it must be extracted more frequently on the opposite part, than on that by which it entered, and especially because it is generally surrounded with beards, which lacerate more, if they be drawn backward than forward. But an orifice being made on the opposite part, the flesh ought to be opened by an instrument made in the form of the Greek letter ν; and when the point appears, if the shaft adheres to it, it must be pushed forward, till it can be taken hold of at the opposite part, and extracted. If that is already broke off, and only the iron head is within, the point must be taken hold of by the fingers, or a forceps, and thus pulled out. And there is no other method of extracting it, when it is thought adviseable to pull it out by the orifice it entered at: for after the wound is enlarged, either the shaft, if that be lodged within, must be pulled out; or if that be not there, the iron itself. But if the beards are visible, and they are short and small, they ought to be broke off with a forceps, and the weapon, when freed of them, to be brought out; if they are larger and stronger, they must be covered with writing reeds split, to prevent their lacerating any part, and thus pulled out. This is the method observed in extracting arrows.

But if a person has a broad weapon lodged within his flesh, it is not proper to draw it out at the opposite part, lest we add another great wound to the large one already made. It must therefore be pulled out with a certain kind of iron instrument, which the Greeks call the graphiscus of Diocles[ GP ], because it was invented by Diocles, whom I have already taken notice of among the ancient and greatest physicians. This is a plate of iron, or sometimes of copper, at the one end, having two claws turned downwards on each side; the other perforated and folded back on each side; bent a little at that extremity, which has the claws; and likewise on the other, which is perforated. This is introduced transversely, hard by the weapon; and then, when it has reached its point, it is turned a little, that it may receive the weapon into the perforation. When the point is in the hole, the operator, clapping two of his fingers to the claws at the other end, draws out at once his instrument and the weapon.

A third kind of weapon, which requires sometimes to be pulled out, is a leaden bullet, or a stone, or some such thing, which having broke through the skin, is entirely lodged within. In all these cases, the wound must be enlarged, and what is within must be extracted by a forceps the way it entered.

But there is an additional difficulty attending every wound, where the weapon is either fixed in a bone, or has sunk into an articulation between two bones. If, in a bone, the weapon must be moved to and fro, till the part, which gripes the point, gives way, and then the weapon must be extracted, either with the hand, or a forceps. Which is also the method of extracting the teeth. And it is very rare that the weapon does not follow in this way. But if it still remains, it may be forced out with some kind of instrument. The last resource, when it is not extracted, is to make a perforation near it by a terebra, and from that opening, to cut the bone in the form of the letter v, opposite to the weapon, in such a manner, that the opening of the lines be directed towards the weapon; when this is done, it must necessarily give way, and be easily taken out.

If it has made its way into an articulation between two bones, the two limbs must be bound up with rollers and straps, and by means of these drawn contrary ways, to stretch the tendons: which being extended, will leave a larger space between the bones, so that the weapon may be extracted without difficulty. Care must be taken, as I observed in other cases, in its extraction, that no nerve, vein, or artery be wounded by the weapon, whilst it is extracting, which is to be guarded against by the method mentioned before.

But if a person be wounded by a poisoned weapon, all that is above mentioned being, if possible, still more expeditiously executed, he must also be treated in the method prescribed for one that has drunk poison, or been bit by a serpent. The treatment of the wound itself, after the extraction of the weapon, is the same as if nothing had been lodged there; of which I have said enough elsewhere.