. A practical treatise on fractures and dislocations . , it appears to bemost abundant in the direction of the salient points of the fracture,that is, above and below; so that, unless the examination is made withcare, the projecting points of callus which remain, sometimes aftermany years, may be easily mistaken for an intercepted fragment turnedat right angles to the axis of the bone. In the case of partial fracture,reported by Dr. Green, a similar circumstance was observed, which hisnatural shrewdness soon enabled him to Robert Smith has observed, also, that in cases of fracture ex
. A practical treatise on fractures and dislocations . , it appears to bemost abundant in the direction of the salient points of the fracture,that is, above and below; so that, unless the examination is made withcare, the projecting points of callus which remain, sometimes aftermany years, may be easily mistaken for an intercepted fragment turnedat right angles to the axis of the bone. In the case of partial fracture,reported by Dr. Green, a similar circumstance was observed, which hisnatural shrewdness soon enabled him to Robert Smith has observed, also, that in cases of fracture externalto the conoid ligament, osseous matter is freely formed upon the undersurface of each fragment, but there is seldom any deposited upon theupper surface of either. These osseous growths, occupying the situa-tion of the coraco-clavicular ligaments, frequently prolong themselvesas far as the coracoid process, and in some cases to the notch of the 1 Transac. of Amer. Med. Assoc, for 1855, Case 13 of Frac. of Clavicle. FRACTURES OF THE CLAVICLE. 187. scapula. Still less frequently these osteophytes become fused with thecoracoid process, and a true anchylosis exists. In comminuted fractures the intercepted fragments generally falloff from the line of the other fragments, and cannot easily be restored. The clavicle being a spongy and vascular bone, usually unites withgreat rapidity, generally within twenty days. In the fourth exampleof transverse fracture already men-tioned as having been seen by me,the union seemed to be tolerablyfirm in seven days. Wallace re-ports one case from the Pennsylva-nia Hospital, which was cured ineight days, and another in Velpeau says the claviclewill unite in from fifteen to twenty-five days; Benjamin Bell, in four-teen ; Stephen Smith has seen itfirm in fifteen days. Whatever may be the degree ofdisplacement, or the condition ofthe system, it is very seldom thatit refuses to unite altogether or thatthe union is ligamentous: and inthe f
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