A practical treatise on fractures and dislocations . n and prona-tion, but I have never seen it supinated. I have particularly noticedthis fact in my report made to the New York State Medical Societyin 1855; and Denuce, who has also examined these cases carefully,affirms that it is seldom supinated, notwithstanding the general state-ments of surgeons to the contrary. The arm is usually a little flexed, and cannot be perfectly extendedwithout causing pain. In some cases, especially when the dislocationhas existed for a considerable length of time, the arm is capable ofextreme and unnatural exte
A practical treatise on fractures and dislocations . n and prona-tion, but I have never seen it supinated. I have particularly noticedthis fact in my report made to the New York State Medical Societyin 1855; and Denuce, who has also examined these cases carefully,affirms that it is seldom supinated, notwithstanding the general state-ments of surgeons to the contrary. The arm is usually a little flexed, and cannot be perfectly extendedwithout causing pain. In some cases, especially when the dislocationhas existed for a considerable length of time, the arm is capable ofextreme and unnatural extension. This was the case with LydiaMerton. There is usually preternatural lateral motion; but, exceptin old cases, the forearm cannot be flexed upon the arm beyond aright angle. Prognosis.—Denuce* says : The reduction is often impossible; morefrequently still, difficult to maintain. In proof of which he refers tothe observations of Danyau and Eobert. In the case of recent luxa-tion related by Eobert, it was found impossible to maintain a reduc-. Head of radius forwards. Anatomical relations. 1 Krackowizer, New York Journ. Med., March, 1857, p. 262. DISLOCATION OF HEAD OF RADIUS FORWARDS. 581 Fig. 252. tion which he thought he had several times accomplished, and hebelieved that the difficulty consisted in a portion of the torn annularligament having become entangled between the head of the radius andthe condyle of the Sir Astley Cooper was unable to accomplish the reduction in tworecent cases; and of the six cases which came under his immediateobservation, only two were ever re-duced. In Bransby Coopers editionof Sir Astleys work, other similarexamples of non-reduction are re-lated. Malgaigne says that- in a collec-tion of twenty-five cases which hehas made, the accident was unrecog-nized or neglected in six, and in-effectual efforts at reduction had beenmade in eleven; so that only eightof the whole number were reduced. I have myself met with six ofthese simple disl
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