Magnetic Resonance Assessment of the Equine Distal Phalanx Facies Flexoria |
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| Institution: | 1. Diagnostic Imaging Section, Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Montréal, Saint-Hyacinthe, Canada;2. Equine Sports Medicine Section, Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Montréal, Saint-Hyacinthe, Canada;1. CIISA, Faculdade de Medicina Veterinária, Universidade de Lisboa, Lisboa, Portugal;2. Departamento de Engenharia Mecânica, Instituto de Ciência e Engenharia de Materiais e Superfícies, IST, Universidade de Lisboa, Lisboa, Portugal;3. Faculdade de Medicina Veterinária, Universidade de Lisboa, Lisboa, Portugal;1. Departamento de Medicina y Zootecnia de Equidos, Facultad de Medicina Veterinaria y Zootecnia, UNAM Mexico, Ciudad de Mexico, Mexico;2. Departamento de Patologia, Facultad de Medicina Veterinaria y Zootecnia, UNAM Mexico, Ciudad de Mexico, Mexico;3. Departamento de Biologia Celular y Fisiologia, Instituto de Investigaciones Biomedicas, UNAM Mexico, Ciudad de Mexico, Mexico;4. Department of Clinical Science, College of Veterinary Medicine, Auburn University, Auburn, AL;5. Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN;1. Odisee Brussel, Educational Department of Medical Imaging Technologists (BE), Brussel, Belgium;2. Animal Health Trust, Newmarket (U.K.), Newmarket, Suffolk, UK;3. Department of Radiology, University Hospital Brussels (UZ Brussel), Brussels, Belgium;4. Faculté de Médecine Vétérinaire de l’Université de Liège, Service d''imagerie, Liège (Sart Tilman), Belgium;1. Animal Clinic Ridderkerk, Ridderkerk, The Netherlands;2. Division of Diagnostic Imaging, Department of Companion Animal Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands;3. Equine Practice Utrecht, Odijk, The Netherlands;4. Veterinary Clinic Emmeloord, Emmeloord, The Netherlands;5. Bodegraven Equine Clinic, Bodegraven, The Netherlands;6. Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands;7. Department of Surgery and Anaesthesia of the Domestic Animals, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium;1. Hokkaido South Agricultural Mutual Aid Association Mitsuishi Animal Medical Center, Hidaka-gun, Hokkaido, Japan;2. Federation of Hokkaido Agricultural Mutual Aid Associations, Large Animal Clinic and Research Center, Ebetsu, Hokkaido, Japan |
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| Abstract: | Abnormalities of the facies flexoria of the distal phalanx (FF) of the horse associated with podotrochlear syndrome have been scarcely described in the literature. The objective of this retrospective study was to determine correlation between modification of the FF and lesions of the podotrochlear apparatus. This study includes 100 horses referred for forelimb lameness that underwent a standardized magnetic resonance (MR) imaging protocol of the affected foot. Of the 100 MR studies, 74 had podotrochlear lesions and 26 free of podotrochlear lesions served as controls. A comparison of the FF compact bone thickness between affected and control feet was performed. Presence and location of a deep digital flexor tendon (DDFT) lesion was noted. Grading systems were used to score: FF osseous resorption, FF bone marrow lesion, FF sclerosis and abnormalities of the navicular bursa and the distal interphalangeal joint. Compact bone thickness of the FF was not increased in case of tendinopathy of the DDFT or other podotrochlear lesions (P = .86). Significant correlation was observed between osseous resorption of the FF at the level of the distal recess of the navicular bursa and synovial proliferation of the navicular bursa (P = .05). Compact bone thickening at the DDFT enthesis is not predictive of podotrochlear syndrome and should rather be considered as an interindividual anatomical variation. Navicular bursitis may play a role in osseous resorption of the FF. |
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| Keywords: | Horse Equine Magnetic resonance Facies flexoria Enthesis |
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