Arthroscopically assisted arthrodesis of the distal interphalangeal joint with transarticular screws inserted through a dorsal hoof wall approach in a horse

Journal of the American Veterinary Medical Association
Evita Busschers, Dean W Richardson

Abstract

A 16-year-old Thoroughbred gelding was examined because of chronic right forelimb lameness. On radiographs of the right front foot, the distal interphalangeal (DIP) joint space was narrow, and osteophytes and periarticular bony proliferation indicative of severe osteoarthritis were seen. Arthrodesis of the right DIP joint was recommended to improve the horse's comfort on the limb. The horse was anesthetized, and palmar and dorsal arthroscopic approaches were used to remove as much of the articular cartilage as was accessible. Holes were then drilled through the dorsal aspect of the hoof wall, and 3 transarticular, 5.5-mm cortical screws were placed in lag fashion through these holes across the distal phalanx and into the middle phalanx. Defects in the hoof wall were filled with gentamicin-impregnated polymethyl methacrylate plugs and sealed with cyanoacrylate. Eight months after surgery, fusion of the DIP joint was evident radiographically and the horse was sound at a walk. Transarticular placement of cortical screws through a dorsal hoof wall approach combined with arthroscopically guided cartilage removal can result in fusion of the DIP joint in horses.

References

Jul 1, 1992·Veterinary Surgery : VS·C M HonnasJ P Watkins
Jun 9, 2004·Australian Veterinary Journal·T B LescunW E Blevins

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Citations

May 3, 2007·Journal of the American Veterinary Medical Association·John C Janicek, Kevin G Keegan

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