Although injuries involving the elbow joint are very common, especially in children, separation of the epiphysis at the head of the radius is most infrequent. Because of the rarity of this lesion as well as its possible effect on the growth of the radius and the function of the elbow joint, the history of the following case may be of interest.
REPORT OF CASE听
L. B., a white girl, aged 11 years, entered the Children's Memorial Hospital, Nov. 6, 1920. Five days before, she fell from a gymnasium ladder, a distance of 4 feet, and struck her left elbow on the floor. Pain and disability of the joint immediately followed the fall. The physical examination was negative, except for the left arm. The elbow region was slightly swollen, especially on the outer side. There was marked tenderness over the external condyle and the head of the radius. The forearm was