. The American journal of roentgenology, radium therapy and nuclear medicine . tail, we believethat there is a degree of separation which isproductive of symptoms but which cannotbe demonstrated by the ordinary roentgenplate, and, too, the degree of separationmay be so slight that while it can be demon-strated upon the plate, there is no deform-ity evident upon physical cases of extreme or complete separa-tions offer no difficulty in diagnosis, inas-much as there is present a shortening androtation of the limb, and limitation ofmovements of the affected joint. development of th


. The American journal of roentgenology, radium therapy and nuclear medicine . tail, we believethat there is a degree of separation which isproductive of symptoms but which cannotbe demonstrated by the ordinary roentgenplate, and, too, the degree of separationmay be so slight that while it can be demon-strated upon the plate, there is no deform-ity evident upon physical cases of extreme or complete separa-tions offer no difficulty in diagnosis, inas-much as there is present a shortening androtation of the limb, and limitation ofmovements of the affected joint. development of the two conditions is so dis-tinct that there is no question in our mindsthat the type appearing during the periodof adolescence is a distinct type. Thewriter is of the opinion that this conditionshould not be confused with Pertheysdisease, which was fully described in anarticle by Dr. Frederick C. Kidner, ofDetroit. The prognosis in the condition depends,then, in the first place, entirely upon anearly diagnosis, and upon the treatmentadopted following the demonstration of an. Case III, Plate 7. Rt-sult (U uimiinsLul scparatioii andnon-treatment. From the roentgen examination alone,we cannot distinguish between the epi-physeal separation which accompanies ageneral condition and the separation whichresults directly from a trauma. Further-more, we have noted that the condition is aprogressive one, even in the case of thetraumatic type of separation. It is thispoint which probably leads its supportersto the view that all separations result fromtrauma, they claiming that the originaltrauma may be overlooked. Of course the


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