TWO CASES OF UPWARD DISLOCATION OF THE STERNAL END OF THE CLAVICLE.
BY S. T. ARMSTRONG, M.D.. Ph.D.,PASSED ASSISTANT SURGEON U. S. MARINE-HOSPITAL SERVICE.The comparative rarity of this dislocation, Hamilton1 mentioning but eleven cases, may justify the publication of the following cases:
—Jas. Davidson, æt. 41, a native of Scotland, was admitted to the U. S. Marine Hospital, New York, on October 16, 1888, for necrosis of the frontal bone. In examining the patient it was found that he had an old upward dislocation of the sternal end of the clavicle. The patient stated that in 1881 he fell from a wagon, striking the wheel with his right shoulder in falling. Though severely jarred for a few moments, he felt no severe pain in the shoulder or sternal region, and was not obliged to consult a physician. A machinist by trade; in resuming his