. A treatise on dislocations and fractures of the joints. r the head of the bone, soas to lift it towards the glenoid cavity, which, as every tyro knows,will sometimes prove effectual, because, in this position, the musclesare relaxed so as no longer to offer any resistance to reduction. Dissection of a Dislocation which had been long Unre-duced.—The head of the bone is found altered in its form ; the sur-face towards the scapula being flattened. A complete capsular liga-ment environs the head of the oshumeri. The glenoid cavity is en-tirely filled by ligamentous matter,in which are suspended
. A treatise on dislocations and fractures of the joints. r the head of the bone, soas to lift it towards the glenoid cavity, which, as every tyro knows,will sometimes prove effectual, because, in this position, the musclesare relaxed so as no longer to offer any resistance to reduction. Dissection of a Dislocation which had been long Unre-duced.—The head of the bone is found altered in its form ; the sur-face towards the scapula being flattened. A complete capsular liga-ment environs the head of the oshumeri. The glenoid cavity is en-tirely filled by ligamentous matter,in which are suspended small por-tions of bone, which are of newformation, as no portion of thescapula or humerus is broken. Anew cavity is formed for the headof the os humeri on the inferiorcosta of the scapula; but this isshallow, like that from which theos humeri had escaped. The common causes of dislo-cation of the os humeri into theaxilla are, falls upon the hand while the arm is raised above an horizon-tal line, by which the head of the bone is thrown downwards: INTO THE AXILLA. 323 falls upon the elbow, when the arm is raised from the side; but themost frequent cause is a fall directly upon the shoulder on some un-even surface, by which the head of the bone is driven downwards,whilst the muscles are unprepared to resist the shock. When the arm has been once dislocated, if great care be not takenof the limb after its reduction, it is extremely liable to a recurrence ofthe accident. I remember, particularly, a carpenter, who used to be afrequent visitor at Guys Hospital for several years, for the purpose ofhaving his shoulder reduced. Slighter causes than that which origi-nally produced it, will renew the dislocation ; I have known it to recurfrom the act of throwing up the sash of a window. During my ap-prenticeship at St. Thomass Hospital, in going through the wardsearly one morning, I was directed to see a man who had just dislocatedthe shoulder, which he had frequently done before,
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectfractur, bookyear1844
