Equine veterinarians stress regular monitoring for arthritis: full analysis

Equine osteoarthritis management is getting a fresh push toward routine monitoring, not just treatment. In two April 2026 educational items from The Horse, Howland Mansfield, DVM, CVA, CVMMP, a technical services veterinarian with American Regent Animal Health, outlined how osteoarthritis can progress in horses and how veterinarians monitor that progression through regular exams, gait assessment, and diagnostic testing when needed. The core message is straightforward: subtle changes often come first, and reevaluation matters because OA care plans rarely stay static. (thehorse.com)

That framing fits the broader understanding of equine OA. UC Davis describes osteoarthritis as the most common joint problem in horses and says it accounts for more than 60% of equine lameness. The disease worsens with age, but it can affect horses of any age, particularly after repetitive stress, traumatic injury, or conformational strain. Clinical signs can be intermittent at first, with stiffness, reduced range of motion, swelling, heat, pain on manipulation, or lameness that may improve somewhat after warming up. (ceh.vetmed.ucdavis.edu)

In Mansfield’s earlier April 17 piece on progression, the warning signs extended beyond overt lameness. She said horses may first show reluctance to move forward, stiffness, or changes in attitude during work, with ongoing inflammation and cartilage damage eventually changing the way the horse moves and reducing performance more consistently. The April 24 follow-up on monitoring added that veterinarians track OA progression with regular physical exams, gait evaluations, and imaging or other diagnostic tests as needed, and that many horses benefit from periodic reevaluation so treatment and management can be adjusted over time. (thehorse.com)

Outside commentary supports that approach. UC Davis says OA is most commonly diagnosed through a lameness exam and radiographs, with CT, MRI, PET, arthroscopy, or diagnostic analgesia used in some cases to localize pain or better define joint changes. The school also emphasizes that there is no single standard treatment or cure, and that management usually combines pain control with efforts to slow progression, including NSAIDs, intra-articular therapies, exercise planning, specialized trimming or shoeing, and weight control where relevant. (ceh.vetmed.ucdavis.edu)

There’s also growing interest in better long-term pain tracking outside the exam room. A 2026 Frontiers in Veterinary Science study found that client-specific outcome measures correlated with both subjective and objective indicators of chronic osteoarthritis pain in horses, suggesting caretaker-reported tools could complement veterinary monitoring. That doesn’t replace clinical assessment, but it does point to a more structured way to capture the day-to-day changes pet parents often notice first, such as difficulty rising, altered tolerance for work, or reduced comfort under saddle. (frontiersin.org)

Why it matters: For equine veterinarians, the message is less about a new therapy than about clinical process. OA cases can drift if follow-up is informal, especially when horses compensate well and pet parents normalize subtle declines in performance or behavior. Regular reevaluations create opportunities to document baseline gait, reassess response to medication or joint therapy, determine whether imaging is warranted, and adjust workload, turnout, or farriery plans before a manageable case becomes a chronic welfare and use-limiting problem. That’s especially relevant in senior horses and performance horses, where maintaining comfort and function often depends on incremental adjustments rather than one-time intervention. (thehorse.com)

The industry context matters, too. Mansfield’s affiliation with American Regent Animal Health means the commentary sits within a commercial animal health ecosystem, but the monitoring principles she described align closely with academic and clinical guidance on equine OA: diagnose early, monitor longitudinally, and match treatment intensity to the horse’s changing clinical picture. That consistency makes the advice more useful for practice teams discussing expectations with pet parents. (thehorse.com)

What to watch: The next development to watch is whether equine practices adopt more standardized reassessment intervals and validated caretaker questionnaires as part of routine OA follow-up, particularly for chronic cases being managed medically over months to years. (thehorse.com)