Laminitis & Founder in Horses: 2025 Vet Diagnosis, Treatment & Prevention by Dr Duncan Houston 🐴🩺

Laminitis & Founder in Horses: 2025 Vet Diagnosis, Treatment & Prevention by Dr Duncan Houston 🐴🩺

Hello! I’m Dr Duncan Houston, veterinarian and founder of AskAVet.com. In this comprehensive 2025 guide, we explore laminitis—a painful inflammation of the laminae inside the hoof—and its severe form, founder, where coffin bone rotation or sinking occurs. We’ll cover causes, signs, diagnosis, immediate care, chronic management, farriery, rehabilitation, and prevention strategies to preserve hoof health and equine comfort.

🔍 Understanding Laminitis vs Founder

Laminitis is inflammation and damage to the laminae—the soft interlocking tissues between the hoof wall and coffin bone :contentReference[oaicite:3]{index=3}. When severe, the coffin bone rotates or sinks: this is called founder :contentReference[oaicite:4]{index=4}. Founder may lead to catastrophic structural changes.

⚠️ Common Triggers & Risk Factors

• Endocrine issues—Equine Metabolic Syndrome (EMS), insulin resistance, PPID (Cushing’s) :contentReference[oaicite:5]{index=5}.
• Carbohydrate overload—lush pasture, excessive grain :contentReference[oaicite:6]{index=6}.
• Endotoxemia—systemic disease, retained placenta, GI or respiratory infections :contentReference[oaicite:7]{index=7}.
• Trauma/overload—road founder, prolonged weight-bearing, hard footing :contentReference[oaicite:8]{index=8}.
• Black walnut shavings and high-dose corticosteroids can trigger laminitis :contentReference[oaicite:9]{index=9}.

👁️ Clinical Signs to Recognize

• Acute: warm feet, bounding digital pulses, intense pain—horse stands “founder stance” shifting weight :contentReference[oaicite:10]{index=10}.
• Lameness graded via Obel system (1–4), ranging from stiffness to recumbency :contentReference[oaicite:11]{index=11}.
• Chronic: hoof deformation—dished wall, wide growth rings, thin sole, white-line distortion :contentReference[oaicite:12]{index=12}.
• Radiographs show rotation/sinking of coffin bone—cornerstone of diagnosis :contentReference[oaicite:13]{index=13}.

🩺 Diagnostic Workflow

1. History & lameness exam including hoof tester responses :contentReference[oaicite:14]{index=14}.
2. Obel scoring to assess severity :contentReference[oaicite:15]{index=15}.
3. Radiographs—AP and lateral views to assess rotation, sinking, sole depth and guide farriery :contentReference[oaicite:16]{index=16}.
4. Venography or MRI/CT in complex or chronic cases, particularly support-limb laminitis :contentReference[oaicite:17]{index=17}.

🏥 Emergency & Acute Care

• Stall rest on soft, deep bedding to reduce loading :contentReference[oaicite:18]{index=18}.
• Apply cryotherapy (icing) during developmental phase to reduce laminar damage :contentReference[oaicite:19]{index=19}.
• Use NSAIDs (phenylbutazone, flunixin) for pain & inflammation, plus possible DMSO, pentoxifylline, acepromazine :contentReference[oaicite:20]{index=20}.
• Support feet: soft-sole pads, heart-bar shoes or hospital plates, corrective trimming to unload laminae :contentReference[oaicite:21]{index=21}.

🛠️ Chronic Management & Rehabilitation

• Ongoing farriery: trimming/shoeing every 4–6 weeks based on radiographic alignment :contentReference[oaicite:22]{index=22}.
• Supportive devices: heart-bar, wide-web, rocker-toe shoes, hoof boots as needed :contentReference[oaicite:23]{index=23}.
• Gradual physical rehab: soft-hand walking increasing from stall rest to controlled turnout :contentReference[oaicite:24]{index=24}.
• Address underlying diseases (EMS, PPID)—diet management (1.5% hay BW), exercise, medication :contentReference[oaicite:25]{index=25}.
• Follow-up imaging every 6–12 weeks to adjust care :contentReference[oaicite:26]{index=26}.

🛡️ Prevention Strategies

• Monitor at-risk horses: overweight, EMS, PPID—fasting insulin/ACTH testing :contentReference[oaicite:27]{index=27}.
• Limit NSC intake: manage pasture access, low-sugar hay.
• Ensure foot health: regular trimming/shoeing, soft surface turnout, avoid black walnut bedding :contentReference[oaicite:28]{index=28}.
• Use pre-emptive cryotherapy during high-risk exposures.
• Avoid drugs that can trigger laminitis unless necessary and under vet supervision.

📊 Summary: 2025 Laminitis Care Chart

🌟 Final Thoughts from Your 2025 Vet

Laminitis is a serious and multifaceted condition—but early diagnosis, prompt intervention, biomechanical support, dietary and endocrine management, and veterinary-farriery collaboration can preserve hoof integrity and quality of life. Each case requires tailored care, patience, and consistency. 🐎✨

📲 Use the AskAVet.com app to upload hoof radiographs, track hoof/weight changes, set rehab reminders, and get expert feedback. Together, we’ll keep your horse walking sound and happy. 💙

— Dr Duncan Houston, BVSc • AskAVet.com