35. Several authors, particularly Bell, speak (as if it were a familiar accident) of an œdematous swelling of the whole upper extremity, caused, in inward luxations, by a compression of the axillary glands. This phenomenon has not often occurred in the Hotel-Dieu, except in luxations of long standing: and when it has been met with in certain cases, very happy effects have been produced, by the action, continued for several days, of a roller applied with considerable tightness after the reduction, and reaching from the fingers to the arm-pit.

Case II. Maria ***, falling from some height, her elbow being separated from her body and directed backwards, luxated her shoulder inwardly. Several days elapsed before she received any surgical aid. She was afterwards admitted into the Hotel-Dieu, where the displacement was discovered through a very considerable swelling, which occupied the parts around the articulation of the humerus. The reduction was accomplished, and the swelling left to itself, which, far however from disappearing, with the cause that produced it, seemed to gain ground. A roller was then applied, and on the day following the tumefaction was reduced to half its former size. The same means are continued. The compression is gradually increased, and by the ninth day, the limb restored to its natural form, performs, as before, all its functions.

36. There is another accident, on which authors have dwelt a little, which was known to Avicenna, and which oftentimes fell under the notice of Desault. I allude to a paralysis of the upper extremity, the effect of compression made by the head of the bone, in inward luxations, on the nerves of the brachial plexus. This accident sometimes resists every expedient of art, as appears from the following case, collected by myself, in the Hotel-Dieu.

Case III. Maria Dougour, fell on her right side, and experienced immediately all the signs of a downward luxation. A surgeon was called, who moved the bone violently in every direction; he made no extension; he kept the patient in torture for an hour; and at the expiration of that time pronounced the luxation irreducible, because the head of the bone, instead of returning into its natural cavity, had moved inwardly. Indeed, in the midst of his unskilful efforts, a consecutive luxation inwards had succeeded to a primitive one downwards.

On the same evening, an evident insensibility occurred in the part. A swelling, joined to a sense of coldness, accompanied it. On the fourth day, the paralysis was complete.

On the tenth day the patient was brought to the Hotel-Dieu, where the processes of art which we shall presently describe, replaced the bone, without removing the effects of its luxation.

To remedy this, irritating means were employed, simple at first, but multiplied and combined afterwards, and pushed so far as to occasion redness accompanied by small blisters. These were continued for three weeks; blistering plasters were applied; all in vain; the paralysis continued, and as long as a year afterwards the patient was still affected with it.

37. This accident is, in general, extremely obstinate, when, as in the preceding case, the nerves have experienced a long continued pressure. Under such circumstances, the most powerful means are often ineffectual. Moxa has been oftentimes used by Desault, which he applied over the clavicle, at the very origin of the brachial plexus. The success, with which he at first applied this remedy, did not always accompany his use of it, so that notwithstanding several cures performed by it, yet, to the majority of patients to whom it was applied, it was wholly useless.

39. But, if the head of the humerus make on the nerves but a momentary pressure, and the reduction be accomplished shortly after the paralytic symptoms occur, oftentimes then the insensibility disappears of itself, and the cure may be always greatly assisted by the application of powerful stimulants; such, for instance, as volatile liniment, composed of oil of almonds and ammonia, which Desault frequently employed, and of which he increased the strength, so as to render it rubefacient.