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Article
July 1936

INFLUENCE OF MOTION ON HEALING OF FRACTURES

Author Affiliations

OAK PARK, ILL.
From the Department of Surgery of Rush Medical College of the University of Chicago.

Arch Surg. 1936;33(1):83-91. doi:10.1001/archsurg.1936.01190010086005
Abstract

In a recent study of the rôle of the hematoma1 in healing fractures it was shown that bony callus grew readily into a blood clot placed over a slight defect in the radius of a dog. As a result of these studies it seems warranted to state that the hematoma serves an important function in the formation of bony callus: as an indifferent base, a trellis, for the ingrowth of callus; as an irritant, stimulating the rapid development of hyperemia and the formation of new capillaries; as a medium for the retention of a possible enzyme influencing the deposition of calcium salts and the development of osteoid tissue, or as a defense wall against the ingrowth of connective tissue. More than likely all these factors come into play in the complex process of the formation of new bone.

The fragments of a broken bone incapable of producing or utilizing

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