Desmotomy of the accessory ligament of the deep digital flexor tendon for treatment of chronic deep digital flexor tendinopathy in three Quarter Horses
Authors: Humbach K. E., Gutierrez‐Nibeyro S. D.
Journal: Equine Veterinary Education
Summary
# Editorial Summary Chronic deep digital flexor (DDF) tendinopathy represents a significant clinical challenge in equine practice, particularly when conventional rehabilitation protocols fail to resolve lameness. This case series describes three Quarter Horses with severe bilateral DDF tendinopathy that had not responded to conservative management and subsequently underwent bilateral desmotomy of the accessory ligament of the DDF tendon—a surgical procedure that aims to reduce tension within the affected structure. Following the procedure, all three horses demonstrated marked improvement in lameness, suggesting that this surgical intervention may offer a viable option for horses with intractable DDF tendinopathy where conventional approaches have been exhausted. Whilst these results are encouraging given that DDF tendinopathy typically carries a guarded prognosis for return to soundness, the authors appropriately acknowledge that three cases represent limited evidence; prospective studies with larger cohorts would be needed to establish this technique as a reliable treatment protocol. For practitioners managing horses with persistent DDF-related lameness, this case series warrants consideration as a potential intervention worth discussing with referring veterinarians, particularly in performance animals where rehabilitation timelines are critical.
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Practical Takeaways
- •Consider desmotomy of the accessory ligament of the DDF tendon as a surgical option for horses with severe, treatment-resistant bilateral DDF tendinopathy when conservative management has failed
- •This technique appears promising for alleviating lameness in chronic DDF tendinopathy cases, though evidence is currently limited to three cases
- •Further research with larger case numbers is needed to establish this procedure's long-term efficacy and appropriate patient selection criteria
Key Findings
- •All three Quarter Horses with severe bilateral DDF tendinopathy showed marked improvement in lameness following bilateral desmotomy of the accessory ligament of the DDF tendon
- •All three horses had failed to respond to conservative therapy prior to surgical intervention
- •Desmotomy of the accessory ligament of the DDF tendon may represent a viable surgical treatment option for severe DDF tendinopathy