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Arch Surg. 1937;34(2):360-376. doi:10.1001/archsurg.1937.01190080161009.
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Fifty-seven cases of Perthes' disease which were roentgenographed and studied in the Hospital for Joint Diseases between 1929 and 1936 formed the basis of this study. The aim of the analysis was to interpret the aberrations as noted on the roentgenograms in the light of current knowledge of pathologic processes in bone.

CLINICAL STATISTICS  The statistical data may be briefly summarized as follows:

1. Age at Which Symptoms Commenced.  —The distribution of cases according to age was as follows: 3 years, three; 4 years, one; 5 years, nine; 6 years, eleven; 7 years, nine; 8 years, twelve; 9 years, five; 10 years, three; 11 years, none; 12 years, two; 13 years, one, and 14 years, one.

2. Hip Affected.  —In twenty-eight cases, the right hip was affected; in twenty-six, the left, and in three, both hips.

3. Sex and Race.  —The male patients numbered 45; the female patients, 12. All


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