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The University of Tennessee

The College of Veterinary Medicine

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UTCVM Lameness


Lameness evaluations are routinely performed on an outpatient or inpatient basis. Localization of pain in lame horses is performed by evaluating response to application of a hoof tester, flexion tests, regional nerve blocks, and joint blocks. After the site of pain is localized, extensive diagnostic imaging, using digital radiography (x-rays), digital ultrasound, or nuclear scintgraphy (bone scan), is available to determine the nature of lesion causing pain.

Recently, the Lameness Locator unit has been introduced into the lameness exam to evaluate complicated and subtle lameness in horses. The Lameness Locator is a system that enables a veterinarian to objectively evaluate lameness in horses. The system provides an analysis that indicates whether the horse is lame, which limb is lame, and the part of the motion cycle at which peak pain is occurring. As the horse is trotted, data is transmitted wirelessly in real time and analyzed by proprietary algorithms using a computer. The comprehensive lameness assessment is immediately available to the examiner.

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