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Article
October 1956

Epiphysiolysis

Author Affiliations

Detroit
From the Department of Pediatrics and the Division of Orthopedics, Henry Ford Hospital. Balance determinations were supervised by Dr. O. H. Gaebler, of the Edsel B. Ford Institute for Medical Research, and were performed by Lois Beers, B.S., and Rosemary Holland, B.S. Mrs. Wertz supervised the diets and Miss Edna Jahraus the calculations.

AMA Am J Dis Child. 1956;92(4):337-346. doi:10.1001/archpedi.1956.02060030331003
Abstract

The sharp limitation of the occurrence of slipping of the upper femoral epiphysis to the accelerative phase of the pubertal growth spurt, such variations as occur duplicating strikingly a frequency curve of the time of occurrence of the "year of maximum growth—the MG year"1 (Fig. 1), suggests conditioning of the episode by a metabolic abnormality peculiar to this period. The fact that it occurs most frequently in the overweight child recalls an old observation of a reciprocal relationship between gain in weight and calcium retention2; the more rapidly the growing animal was permitted to gain in weight, the more florid the rickets that resulted from the Steenbock diet. A similar phenomenon is observed when testosterone is administered to the normal boy; marked increase in the retention of nitrogen is accompanied by reciprocal fall in calcium storage.3 It is the thesis of this paper that suboptimal mineralization is

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