Equine/Large Animal

The Equine Foot

10:00 AM - 12:00 PM

Gain a better understanding of how the loading of the equine hoof changes dramatically throughout the stance and the implications for injuries at each stage. Examples of common effects and the necessary interventions in improving (potentially or actually) injurious biomechanical situations are shown.


Elizabeth M. Collar, BS, DVM, DACVS-LA

Oregon State University

Dr. Elizabeth M. Collar DVM, DACVS-LA is an emergency surgeon and PhD candidate at Oregon State University, as well as a locum large animal surgeon at various practices. Dr. Collar is native of Wisconsin, and grew up with a diverse horse background, primarily riding hunter/jumpers. She received her Doctorate of Veterinary Medicine from the University of Minnesota. After completing a surgical internship at Hagyard Equine Medical Institute in Lexington, KY, she worked in the UC Davis J.D. Wheat Veterinary Orthopedic Research Laboratory, focused primarily on the California Horse Racing Board’s Racing Injury Prevention Program. Dr. Collar then completed a three-year residency in large animal surgery at Oregon State University, after which she became a Diplomate of the American College of Veterinary Surgeons - Large Animal. Her primary research interests continue to focus around musculoskeletal injuries in race and performance horses, with ongoing projects in all aspects of equine medicine. She is currently finishing a PhD in Comparative Health Sciences, teaching veterinary students, and working as an emergency surgeon at Oregon State University. In addition, she works as a locum and relief large animal surgeon, regularly working with practices such as Montana Equine Medical and Surgical Center. Dr. Collar loves all aspects of equine surgery, but has a particular interest in minimally invasive surgery such as laparoscopy and arthroscopy. When not working, she enjoys riding her horse, hiking with her dogs, telemark skiing, rock climbing, mountain biking, and cheering on the Packers.


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Jeff J. Thomason, MSc, PhD

University of Guelph

Dr. Jeff Thomason is a Professor of Biomedical Sciences at the Ontario Veterinary College at the University of Guelph, Ontarion, Canada. His primary teaching responsibility is the delivery of Comparative Veterinary Anatomy to the 1st-Year Veterinary strudents, a responsibility he has cheerfully shouldered since 1992. His research focus during that time has been on the functional anatomy and biomechanics of the equine foot, primarily the hoof, and he has studied the demands of athletic activity on the feet of horses of many breeds and in a variety of disciplines, including racing and performance. One of the focal areas of his investigations has been to assess the effects of known risks factors for injury, for example the surface or footing, on hoof mechanics.


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The Equine Foot

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