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  • Title: Comminuted fracture of the distal sesamoid bone and distal rupture of the deep digital flexor tendon.
    Author: Hoegaerts M, Pille F, De Clercq T, Fulton IC, Saunders JH.
    Journal: Vet Radiol Ultrasound; 2005; 46(3):234-7. PubMed ID: 16050282.
    Abstract:
    A 10-year-old show jumper was evaluated for an acute severe lameness (grade 4 of 5) of the right foreleg. During weight bearing, the toe of the affected limb rotated dorsally suggesting rupture of the deep digital flexor tendon (DDFT). Upon radiographic examination of the hoof, a severe erosion at the flexor surface and a parasagittal fracture of the distal sesamoid bone were found. Ultrasonographic examination confirmed rupture of the DDFT. These findings were confirmed on post-mortem examination. Prior to the acute lameness, the horse was treated with corticosteroid injections into the podotrochlear bursa. Repeated intra-bursal injections of corticosteroids as a possible cause for DDFT rupture are discussed as well as the possible association between a degenerative distal sesamoid bone, a distal sesamoid bone fracture and a DDFT rupture.
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