Navicular disease, a chronic and often debilitating condition affecting the navicular bone and associated structures in a horse's hoof, remains a significant concern for equestrians. Understanding the signs, symptoms, and available treatments is crucial for horse owners and enthusiasts dedicated to maintaining their horses' health and performance. At Discover Equestrian, we provide comprehensive support and resources to enhance your equestrian journey, whether you're an amateur rider or a seasoned professional.

Understanding Navicular Disease

Navicular disease, also known as navicular syndrome or podotrochlosis, primarily affects the front feet of horses, although it can occasionally occur in the hind feet. The navicular bone, situated at the back of the horse's hoof, plays a critical role in the biomechanics of the limb, aiding in shock absorption and smooth movement. When this bone and its surrounding structures (such as the deep digital flexor tendon and navicular bursa) become inflamed or degenerated, it results in significant pain and lameness.

Signs and Symptoms

Identifying navicular disease early can make a substantial difference in the management and prognosis of the condition. Here are the key signs and symptoms to watch for:

1. Intermittent Lameness: Horses with navicular disease often exhibit intermittent lameness, which may initially appear mild but gradually worsens over time. The lameness typically affects one or both front feet and may shift from one foot to the other.
2. Heel Pain: Affected horses often experience pain in the heel area. This pain can be exacerbated by hard or uneven surfaces and may improve temporarily with rest.
3. Shortened Stride: Horses with navicular disease may display a shortened stride and reluctance to move forward freely. They might also stumble frequently, especially on uneven ground.
4. Toe-First Landing: To alleviate heel pain, affected horses may land toe-first when walking or trotting, rather than the usual heel-first pattern.
5. Sensitivity to Hoof Testers: When pressure is applied to the navicular region using hoof testers, horses with navicular disease often show a marked pain response.

Diagnosis

Accurate diagnosis of navicular disease requires a combination of clinical examination, diagnostic imaging, and sometimes, nerve blocks. Radiographs (X-rays) can reveal changes in the navicular bone, while advanced imaging techniques such as MRI or CT scans provide detailed views of the soft tissues and bone structures involved.

Treatment Options

While navicular disease cannot be cured, various treatments can help manage the symptoms and improve the horse's quality of life. A multimodal approach, tailored to the individual horse, often yields the best results. Here are the primary treatment options:

1. Corrective Shoeing and Trimming

Corrective shoeing and trimming aim to reduce the pressure on the navicular bone and improve the horse's gait. Farriers may use shoes with rolled toes, wedge pads, or egg bar shoes to provide better support and alleviate heel pain.

Product Recommendations:

• Keratex Hoof Gel: Protects hooves from excessive moisture and maintains hoof health. Available at Horse Health.
• NAF Five Star Pro Feet: A supplement designed to support hoof health and strength. Available at NAF UK.

2. Medication

Anti-inflammatory medications such as phenylbutazone (bute) or non-steroidal anti-inflammatory drugs (NSAIDs) can help manage pain and inflammation associated with navicular disease. In some cases, corticosteroid injections into the navicular bursa provide temporary relief.

3. Physical Therapy

Physical therapy, including controlled exercise and specific stretches, can help maintain flexibility and strength in the affected limb. Consult with an equine physiotherapist for a tailored exercise regimen.

4. Alternative Therapies

Alternative therapies such as shock wave therapy, acupuncture, and the use of therapeutic ultrasound have shown promise in managing navicular disease symptoms. These treatments can enhance circulation, reduce inflammation, and promote healing.

Product Recommendations:

• Equine America Cortaflex HA Regular Powder: Supports joint health and reduces inflammation. Available at Equine America UK.

5. Surgical Options

In severe cases, surgical intervention may be considered. Procedures such as navicular bursoscopy, which involves cleaning out the inflamed bursa, or neurectomy, where specific nerves are cut to alleviate pain, can provide relief. However, surgery carries risks and should be considered carefully.

Preventative Measures

While it isn't always possible to prevent navicular disease, there are ways of reducing the odds and this involves regular hoof care to ensure balanced hooves, appropriate exercise, and maintaining a balanced diet. Ensure your horse's hooves are trimmed and shod correctly, and avoid excessive work on hard or uneven surfaces. Providing a well-balanced diet with essential nutrients supports overall hoof health too. For more in-depth advice, please do consult your veterinarian.

Navicular Disease...

Navicular disease is a complex condition requiring a multifaceted approach for effective management. Early recognition of signs and symptoms, combined with appropriate treatment and preventative measures, can significantly improve the quality of life for affected horses. At Discover Equestrian, we are committed to supporting horse owners with expert advice and innovative products to enhance your equestrian journey.

For more information on managing navicular disease and other equine health topics, visit our comprehensive resources at Discover Equestrian.