Deep digital flexor tendon injury within the hoof capsule; does lesion type or location predict prognosis?
Authors: Cillán-García, Milner, Talbot, Tucker, Hendey, Boswell, Reardon, Taylor
Journal: The Veterinary record
Summary
# Editorial Summary: DDFT Lesion Type and Prognosis Within the hoof capsule, deep digital flexor tendon (DDFT) injuries present in three morphologically distinct patterns—dorsal border lesions, parasagittal splits, and core lesions—yet their prognostic significance has been poorly characterised. Cilláan-García and colleagues used magnetic resonance imaging to classify and locate 168 primary DDFT lesions in horses, then tracked return to athletic function through telephone follow-up at minimum 18 months post-diagnosis. The results are sobering: only 25% of affected horses regained their previous level of work, but prognosis varied substantially by lesion type, with dorsal border lesions showing significantly better outcomes than either complete splits or core lesions (P<0.001). For farriers, veterinarians, and performance specialists, this distinction offers practical value in counselling owners about realistic rehabilitation timelines and athletic potential; horses presenting with dorsal border pathology warrant a more optimistic initial prognosis than those with core involvement or complete splits, which carry substantially poorer odds of full return to function.
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Practical Takeaways
- •DDFT lesion type is a significant prognostic indicator; dorsal border lesions carry substantially better return-to-work prospects than core lesions or splits
- •Only 1 in 4 horses return to previous performance levels within 18 months regardless of lesion type, setting realistic owner expectations is critical
- •MRI characterization of DDFT lesion morphology should guide prognosis discussions and rehabilitation planning decisions
Key Findings
- •Of 168 horses with primary DDFT injury, 54 had dorsal border lesions, 59 had parasagittal splits, and 55 had core lesions
- •Only 25% of all horses returned to previous levels of athletic activity within 18 months of MRI evaluation
- •Horses with dorsal border lesions were significantly more likely to return to some level of athletic activity compared to those with complete splits or core lesions (P<0.001)
- •Dorsal border lesions of DDFT have better prognosis than core lesions or parasagittal splits