. A practical treatise on fractures and dislocations . elaxed. The fore-arm is generally pronated, some-times it is in a position midway between supination and pronation, but I have never seen it have particularly noticed this fact in my report made to the NewYork State Medical Society in 1855, and Denuce, who has also exami-ned these cases carefully, affirms that it is seldom supinated, notwith-standing the general statements of surgeons to the contrary. The arm is usually a little flexed, and cannot be perfectly extendedwithout causing pain ; nor can it be flexed much, if at all,
. A practical treatise on fractures and dislocations . elaxed. The fore-arm is generally pronated, some-times it is in a position midway between supination and pronation, but I have never seen it have particularly noticed this fact in my report made to the NewYork State Medical Society in 1855, and Denuce, who has also exami-ned these cases carefully, affirms that it is seldom supinated, notwith-standing the general statements of surgeons to the contrary. The arm is usually a little flexed, and cannot be perfectly extendedwithout causing pain ; nor can it be flexed much, if at all, beyond aright angle, owing to the impediment offered by the humerus, againstwhich the head of the radius now impinges. Prognosis.—Denuce says, The reduction is often impossible, morefrequently still, difficult to maintain. In proof of which he refers to New York Journ. Med., May, 1856, p. 333. 2 Amer. Journ. Med. Sci., vol. xxxi. p. 206, Jan. 1843. s Ibid., vol. xxxii. p. 228, .Inly, 1843. 4 Krackowitzer, New York Journ. Med., March, 1856, p. Head of radius forwards. Anatomical relations. 572 DISLOCATIONS OF THE HEAD OF THE BADIUS. Fig. 235. the observations of Danyau and Kobert. In the case of recent luxa-tion related by Robert, it was found impossible to maintain a re-duction which he thought he hadseveral times accomplished, and hebelieved that the difficulty consistedin a portion of the torn annularligament having become entangledbetween the head of the radius andthe condyle of the Sir Astley Cooper was unable toaccomplish the reduction in tworecent cases; and of the six caseswhich came under his immediateobservation, only two were everreduced. In Bransby Coopers edi-tion of Sir Astleys work, othersimilar examples of non-reductionare related. Malgaigne says that in a collectionof twenty-five cases which he hasmade, the accident was unrecognizedor neglected in six, and ineffectualefforts at reduction had been madein eleven ; so that only eight of thewhole
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