. The American journal of roentgenology, radium therapy and nuclear medicine . opinionthat this small group of cases presenteddifferential points sufficiently characteristicto warrant a special classification anddiscussion. His cases were apparentlyidentical with Leggs cases. Three yearslater, in 1913, Dr. George Perthes con-tributed the first intensive publication onthis subject under the heading, Osteo-chondritis Deformans Juxenalis, in whichhe made the first contribution to the litera-ture of a histologic examination in a caseof osteochondritis deformans spite of these undisput


. The American journal of roentgenology, radium therapy and nuclear medicine . opinionthat this small group of cases presenteddifferential points sufficiently characteristicto warrant a special classification anddiscussion. His cases were apparentlyidentical with Leggs cases. Three yearslater, in 1913, Dr. George Perthes con-tributed the first intensive publication onthis subject under the heading, Osteo-chondritis Deformans Juxenalis, in whichhe made the first contribution to the litera-ture of a histologic examination in a caseof osteochondritis deformans spite of these undisputed facts thisaflection is more generally known asPerthes disease, and from this time onappeared in the German literature underthe title of Perthes disease. Prior to1914, Leggs original and subsequent con-tributions were o\erlooked or ignored inthe various German monographs on the * Read at the Fourth Annual Meeting of the Central Section of The subject, although, as pointed out by Sundt,references to Leggs origmal article appearedin three German periodicals in 1910 Fig. I. Case I. Typical case. The hterature on this subject since 1915has become voluminous and more than 350cases|have been reported. The names ofLegg, Calve and Perthes, however, mustremain conspicuously associated with theoriginal recognition of this condition. American Roentgen Ray Society. Louisville, Ky., Feb. 24. 1923. 702 Osteochondritis Deformans Ju\enIIis From a number of clinics a retrospectiveanalysis of a lar^e series of cases, formerlydiagnosed and treated as tuberculousdisease of the hip-joint, demonstrated thefact that the roentgenograms of manv of tuberculosis of the hip, due to its gradualonset without early marked symptoms,but in its later stages shows a vast dif-ference. A slight limp, occurring early andpersisting late, becoming more and more


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