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Journal of Bone and Joint Surgery, 1926;8:824-831.
© 1926 by The Journal of Bone and Joint Surgery, Inc

AN ANALYSIS OF ONE HUNDRED X-RAYS OF PATELLAE IN CHILDREN BETWEEN THE AGES OF TWO AND ONE-HALF AND SIX YEARS WITH ESPECIAL REFERENCE TO THE CENTER OF OSSIFICATION AND A REPORT OF ONE CASE OF DELAYED OSSIFICATION OF THE PATELLAE

A. R. SHANDS JR. M.D.1

1 Children's Hospital School

(1) An analysis of one hundred x-rays of knees of children between the ages of two and one-half and six years shows an absence of the ossification center of the patella in thirty-two.

(2) Tuberculosis has a definite effect on the development of the ossification of the patella, rickets has a definite effect on the time of appearance of the ossification center, while congenital lues has no constant effect on either.

(3) In the case reported of delayed appearance of the ossification centers of the patellae, the undernutrition of the patient stands out as the most important factor.

(4) Two cases are observed with two ossification centers for the patella.


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