Why vets can’t fully prevent navicular disease in horses: full analysis

Veterinarians can't fully prevent navicular disease in horses, but they may be able to slow its course and improve comfort by addressing the factors they can control. That's the core message from a new April 18, 2026, The Horse article featuring Lauren Trager, DVM, MS, Dipl. ACVSMR, in an Ask TheHorse Live excerpt on navicular disease and its management. The framing is notable because it pushes back on any simple prevention narrative and instead centers realistic, ongoing risk reduction. (thehorse.com)

That reflects a broader shift in equine medicine. Over time, clinicians have moved away from treating "navicular disease" as a single-bone problem and toward a more expansive view of podotrochlear or navicular apparatus pathology. The Horse previously reported that multiple structures can be involved, including the navicular bone, navicular bursa, deep digital flexor tendon, coffin joint, and supporting ligaments. Merck Veterinary Manual similarly describes navicular syndrome as a degenerative disease complex that can affect any of those structures, and notes that horses can have clinically important soft-tissue injury even without major radiographic changes. (thehorse.com)

That broader understanding helps explain why prevention is so difficult. According to The Horse's background reporting, both inherited and management-related factors can contribute. Experts cited by the publication identify genetics as a major risk factor, with Quarter Horses, Warmbloods, and Thoroughbreds overrepresented, while conformation issues such as long toes and low heels can increase strain on the navicular apparatus. Work on hard surfaces, tight turns, abrupt stops, lateral maneuvers, and jumping can also increase impact on the heel region. (thehorse.com)

Still, the reporting also points to areas where veterinary teams can make a difference. Trager's comments in The Horse emphasize careful hoof management, balanced trimming or shoeing, and veterinary-guided treatment plans to reduce stress on the heel and slow progression. Supporting background from The Horse says proactive, correct hoof trimming and shoeing may help prevent degeneration of the navicular apparatus in some horses by maintaining more favorable hoof angles from the outset, even if that falls short of guaranteed prevention. AAEP care guidance likewise stresses routine hoof balance and says veterinarian and farrier involvement is necessary when navicular disease is present or suspected. (thehorse.com)

Industry and expert commentary around navicular disease has increasingly converged on that team-based message. The Horse's earlier reporting quotes Craig Lesser, DVM, CF, of Rood & Riddle Equine Hospital, saying hoof care plays a large role and that mechanical options can reduce strain on the injured region. Michael Fugaro, VMD, Dipl. ACVS, also told the outlet that occupation and footing can significantly affect stress on the heel. While those comments predate this latest article, they reinforce the same clinical reality Trager outlines: the condition may not be preventable in absolute terms, but it is manageable, and management starts with biomechanics. (thehorse.com)

Why it matters: For veterinary professionals, this is less a breakthrough than a useful recalibration of expectations. Pet parents may ask whether better shoeing, supplements, or earlier care can "prevent navicular." The more evidence-based answer is that clinicians can often reduce risk, identify disease earlier, and extend comfort and function, but they can't eliminate the condition's multifactorial drivers, especially where genetics and conformation are involved. That makes communication especially important: framing navicular disease as a chronic, often degenerative syndrome can help set realistic treatment goals and support adherence to longer-term monitoring and farriery plans. (thehorse.com)

The diagnostic implications matter, too. Because navicular-related pain may involve soft tissue as well as bone, a normal or equivocal radiograph doesn't necessarily end the workup. Merck notes that horses without notable radiographic changes can still have soft-tissue injury within the navicular apparatus, which supports the profession's growing reliance on more advanced imaging in selected cases. For ambulatory practitioners and referral centers alike, that means the question is increasingly not "Does this horse have navicular disease?" but "Which structures are involved, and what can we modify?" (merckvetmanual.com)

What to watch: The next phase of coverage will likely focus on earlier diagnosis, more tailored imaging and case classification, and whether proactive hoof-care strategies can meaningfully delay clinical disease in high-risk horses, even if full prevention remains out of reach. (thehorse.com)