An association between complete and incomplete stress fractures of the humerus in racehorses.
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Twenty-one horses had a complete unilateral humeral fracture during race training or racing at a California racetrack during the period 24 February 1990 to 10 July 1991. Fractures occurred approximately equally in left and right limbs, and in males and females. Most fractures occurred during training, and in 2- and 3-year-old horses. Only 5 of 16 Thoroughbred horses with known racing records had previously raced more than once, and their mean time between races was less than the time between their last race and fracture (P = 0.07). Ten of 13 humeri studied further had gross evidence of periosteal callus bridging one portion of the fracture line, indicative of a pre-existing stress fracture.
author list (cited authors)
Stover, S. M., Johnson, B. J., Daft, B. M., Read, D. H., Anderson, M., Barr, B. C., ... Ardans, A. A.
complete list of authors
Stover, SM||Johnson, BJ||Daft, BM||Read, DH||Anderson, M||Barr, BC||Kinde, H||Moore, J||Stoltz, J||Ardans, AA