A system of surgery : pathological, diagnostic, therapeutic, and operative . e ends of the broken pieces are sometimes impacted in this fracture, thesuperior being driven into the cancellated structure of the inferior; but such anoccurrence, although said to be common, is, if I may judge from the cases that Ihave had an opportunity of examining, quite infrequent. When the force causingthe impaction is very great, the inferior fragment may literally be crushed by thesuperior. The accident nearly always results from a fall upon the hand, in which thepatient, stretching out the limb, receives the
A system of surgery : pathological, diagnostic, therapeutic, and operative . e ends of the broken pieces are sometimes impacted in this fracture, thesuperior being driven into the cancellated structure of the inferior; but such anoccurrence, although said to be common, is, if I may judge from the cases that Ihave had an opportunity of examining, quite infrequent. When the force causingthe impaction is very great, the inferior fragment may literally be crushed by thesuperior. The accident nearly always results from a fall upon the hand, in which thepatient, stretching out the limb, receives the shock upon the palm, whence itis transmitted to the inferior extremity of the radius. Occasionally, though muchmore rarely, the fracture takes place by a fall upon the back of the hand. Thelesion is also produced by direct violence. The most conspicuous symptom of this fracture is the singular deformity ofthe hand, giving the limb the appearance of a dislocation of the wrist-joint, asexhibited in fig. 400. This is owing to the fact that the lower fragment along Fig. Fracture of the lower extremity of the radius. with the carpus is drawn upwards and backwards, from an inch to an inch and ahalf above the joint, by the action of the extensor muscles of the thumb, whilethe upper fragment forms a slight projection on the palmar aspect of the above the posterior prominence is a well-marked depression, whichgradually slopes off towards the ulna, and is generally sufficiently large to receivethe little finger. These appearances are always very striking when the limb isheld in a situation midway between pronation and supination, and are easilyeffaced by extension and counter-extension, although theyare promptly reproduced when these forces cease to lower extremity of the forearm has a rounded form,from the increase of its antero-posterior diameter; thefingers are usually flexed, and the patient is unable to supi- .nate the hand, which is, moreover, com
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Keywords: ., bookcentury1800, booksubjectgeneralsurgery, booksubjectsurgery
