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Scintigraphy is the only way to diagnose subchondral bone trauma early in the remodeling process.  Focal increased radioisotope uptake in the distal palmar McIII or distal plantar MtIII is most often found in racehorses. The condition is more common in the front limbs, but often overlooked in the hind limbs. In the standardbred the condition is more common in the hind limbs and usually involves the palmaromedial aspect of MtIII, although does occur laterally as well. Isotope uptake can involve P-I or the sesamoid bones in advanced cases. Early scintigraphic appearance usually involves focal, mild to intense uptake of Mc/MtIII and is thought to represent stress related subchondral bone remodeling, secondary to trauma.

 

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Copyright 2001 University of Pennsylvania School of Veterinary Medicine
Faculty Sponsor: Dr. Michael W. Ross
Technologist: Vivian S. Stacy CNMT
Comments and suggestions to vstacy@vet.upenn.edu