. A treatise on dislocations and fractures of the joints. m upwards, this projection stops them. If the surgeonplaces himself behind the patient, puts his knees between the scapulae,grasps the shoulders, and draws them back, the projection on thesternum disappears; but directly when the shoulders advance, theprojection upon the sternum is renewed. The clavicle may be readilytraced with the finger into the projection on the sternum. If theshoulder be elevated the projection descends ; if it be drawn down-wards the dislocated extremity of the bone becomes elevated to theneck. The motions of the
. A treatise on dislocations and fractures of the joints. m upwards, this projection stops them. If the surgeonplaces himself behind the patient, puts his knees between the scapulae,grasps the shoulders, and draws them back, the projection on thesternum disappears; but directly when the shoulders advance, theprojection upon the sternum is renewed. The clavicle may be readilytraced with the finger into the projection on the sternum. If theshoulder be elevated the projection descends ; if it be drawn down-wards the dislocated extremity of the bone becomes elevated to theneck. The motions of the dislocated clavicle are painful, and thepatient moves the shoulder with difficulty. The point of the injuredshoulder is less distant from the central line of the sternum than usual. OF THE CLAVICLE. 307 In a very thin person the nature of the accident can be at once ascer-tained, because the bone is but little covered ; but in fat persons it ismore difficult to detect. When the patient is at rest, very little painor tenderness is felt from the It sometimes happens that this dislocation is incomplete, the anteriorportion of the capsular ligament only being torn, and the bone slightlyprojecting; but generally all the ligaments are lacerated, and the bone,with its interarticular cartilage, is thrown forwards. Cause.—The cause of this injury is a fall upon the point of theshoulder, the force of which pushes the clavicle inwards and forwards,and projects it on the sternum ; but it also frequently happens from afall upon the elbow when separated from the side; by which theclavicle is forced violently inwards and forwards against the anteriorpart of the capsular ligament. Case CCX.— A bakers boy, says Boyer, in order to reposehimself, rested his basket full of bread on the parapet of a bridge ; thebasket lost its equilibrium, and was falling backwards; the boy en-deavored to oppose it, and, in the effort, the straps which passed undereach arm-pit acted so powerfully on
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectfractur, bookyear1844
