bilateral forelimb lameness in an 11 year-old thoroughbred
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Bilateral Forelimb Lameness in an 11 year-old Thoroughbred. Drs. Karyn Labbe and Beth Biscoe, Washington State University Dr. John Mattoon, Washington State University. Bilateral forelimb lameness in an 11 year-old Thoroughbred. - PowerPoint PPT PresentationTRANSCRIPT
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Bilateral Forelimb Lameness in an 11 year-old Thoroughbred
Drs. Karyn Labbe and Beth Biscoe, Washington State University
Dr. John Mattoon, Washington State University
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Bilateral forelimb lameness in an 11 year-old Thoroughbred
• Patient is a previous racehorse acquired by the owner with the intended use of barrel racing
• History of intermittent lameness in both forelimbs noticed by the owner 9 months prior
• No improvement was seen with a prolonged period of stall rest
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Primary Veterinarian Workup
• Injection of both fore coffin joints resulted in transient lameness improvement for 3 months
• Referring radiographs of the left front foot revealed moderate navicular bone degeneration
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Lameness evaluation at presentation
• Patient showed a grade II/V left fore lameness, which was exacerbated by left circling
• Left fore palmar digital nerve analgesia resolved the left fore lameness and resulted in the horse displaying a grade III/V right fore lameness
• Right fore palmar digital nerve analgesia improved the RF lameness greater than 75%
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Further Imaging
• The decision was made for MRI of both fore feet• Nail screening radiography prior to MRI identified
a type II fracture of the right fore third phalanx
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Advanced ImagingMRI Left Front Foot Region
• MRI Proton Density (PD) transverse images shown• Distal to proximal• 2 vitamin E capsules were placed along lateral side
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MRI Left Front Foot Region Sagittal Plane
• Proton Density sagittal plane• Lateral to medial
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