The case reported below presented problems which were so easily and satisfactorily overcome by a new application of a known principle that it seems worthy of mention.
Feb. 3, 1917, one of us (H. S. R.) was called to see A. D., a girl, aged 9 days, because of swelling of the left thigh. The delivery had been effected by a colleague after a difficult dry version. Two physicians, who had previously been called, had advised the family that the child could be delivered only by morcellation. At the time of delivery no lesion had been noticed, although the obstetrician has stated that he noticed a snapping sensation.
The baby had nursed well and had seemed all right, except for this swelling and a disposition to cry most of the time.
On physical examination, the left thigh was found to be shortened, and considerably increased in its diameter, the thigh