Hoegaerts Michel, Pille Frederik, De Clercq Tom, Fulton Ian C, Saunders Jimmy H
Department of Medical Imaging of Domestic Animals, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
Vet Radiol Ultrasound. 2005 May-Jun;46(3):234-7. doi: 10.1111/j.1740-8261.2005.00039.x.
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.
一匹10岁的场地障碍马因右前肢急性重度跛行（5级中的4级）接受评估。负重时，患侧肢体的蹄尖背屈，提示指深屈肌腱（DDFT）断裂。对蹄部进行放射学检查时，发现屈肌面有严重糜烂，远籽骨出现矢状旁骨折。超声检查证实DDFT断裂。这些发现经尸体剖检得以证实。在急性跛行之前，这匹马接受了在蹄滑车囊内注射皮质类固醇的治疗。本文讨论了反复在囊内注射皮质类固醇作为DDFT断裂可能原因的情况，以及远籽骨退变、远籽骨骨折与DDFT断裂之间的可能关联。
