Takeaways
- Hoof-care providers must use a structured evaluation process incorporating essential pillars to tailor sustainable solutions for each horse.
- Achieving distal limb efficiency requires internal structures to function in synchronicity with the hoof capsule within their intended physiological tolerances.
- Managing cases with both pathology and hoof capsule dysfunction often demands multidimensional interventions, including load-sharing formats and heel elevation, to restore soundness over time.
In recent years, the hoof-care industry has been inundated with new products and trimming techniques. As a result, hoof-care providers have more options when treating horses.
Hoof care spans a wide range of interventions. From simple trimming practices to advanced therapeutic concepts, hoof-care formulas must be effective and support hoof-capsule morphology and soundness. It’s essential that each horse receives individualized care tailored to the horse’s unique characteristics.
Hoof-care providers must assess each horse and decide which technique or method is best suited to improve hoof-capsule morphology or soundness. A large part of being successful is acknowledging and managing compromised structures. A systematic evaluation process makes concepts easier to develop, as it reduces the risk of overlooking fundamental aspects relevant to each case.
Hoof-care practices support equine welfare, and horse owners are becoming more aware of the positive effect hoof-care practices can have on their equine athletes. Moreover, high-quality hoof-care practices have been proven to reduce the likelihood of a horse suffering from performance-related injury. But what’s really happening as a byproduct of intervention?
Improving Mechanical Function
Although routine maintenance is a large part of hoof care, the benefit of providing high-quality hoof care serves the horse well beyond the date it was trimmed or shod, as it improves the horse’s ability to mechanically function. For the horse to achieve biomechanical efficiency, the distal limb must work in synchronicity with its internal structures. Each tendon, ligament and bone must perform within its intended physiological tolerance range; otherwise, pathology may occur. Many rehabilitation facilities and equine hospitals employ hoof-care providers because their work supports rehabilitation and reduces the risk of pathology occurring in the future.
When lameness occurs, it can result from poor ground conditions, limb conformation, a mistimed step, athletic fatigue, traction, hoof-capsule dysfunction or, in some circumstances, a combination of all these factors. It can be beneficial to isolate the factors contributing to lameness, as this helps us formulate therapeutic interventions. For simplicity, hoof-care providers can isolate the aspect of the limb that has led to lameness. It may be due to hoof capsule dysfunction, pathology or a combination of these factors.
Therapeutic hoof care can be multifactorial. Cases may require hoof care to support hoof morphology while also addressing pathology. In this image, a heart-bar shoe has been modified with lateral support to accommodate a collateral ligament lesion. Stuart Muir
Hoof-capsule dysfunction can occur for many reasons. In most cases, hoof capsule rehabilitation can be relatively simple if the underlying antagonist is managed and appropriate therapeutic support is added.
Typically, morphological changes that negatively affect hoof capsule performance are related to hoof capsule integrity, managing locomotive and static force and environmental influences. For rehabilitation to occur in compromised feet, the internal structures must be viable and able to produce high-quality keratinized horn.
Perfusion becomes an important factor when hoof-care providers are attempting rehabilitative measures. Without proper circulation, nutrients cannot reach the growth centers that produce epidermal cells, which reduces the effectiveness of rehabilitative therapy. In complex cases, where the hoof capsule’s internal structures are severely compromised, rehabilitation for hoof capsule dysfunction can take months, or in some cases years, even with therapeutic intervention. Therefore, hoof-care providers must be cautious about cosmetically improving the hoof capsule without considering the long-term effects of unsustainable practices.
Targeting Pathological Structures
Lameness cases identified as having good hoof capsule conformation are generally easier to rehabilitate as therapeutic hoof care targets the diagnosed pathological structure. When a horse is accurately diagnosed, therapeutic practices can be applied to rehabilitate specific structures. It’s important that the value of therapy in a hoof-care formula is relevant to the anatomical location and severity of the injury. Without identifying the structures involved and the severity of the pathology, therapeutic hoof care may be ineffective. Hoof-care providers must be able to evaluate and implement a spectrum of therapeutic interventions to ensure they target the pathological structures.
Co-occurring cases with pathology and hoof capsule dysfunction can be challenging to treat, as the hoof-care provider must apply therapeutic principles to manage morphology issues while also optimizing distal limb physiology to rehabilitate pathology. Complex, co-occurring cases can require multidimensional hoof-care intervention. Heel elevation, load-sharing formats and omnidirectional mechanics may be necessary to alleviate the hoof capsule, support the distal limb and establish a rehabilitative environment within the distal limb. Time becomes an essential factor in restoring soundness in co-occurring cases. Rehabilitation often occurs only after the hoof capsule conformation is improved.
The hoof capsule response to altered loading requires consideration from the hoof care provider. Shifts in the center of pressure can affect hoof capsule morphology. Load-sharing concepts may need to be employed while therapeutic hoof care formulas are utilized. Stuart Muir
When a veterinarian evaluates a horse for lameness, a general diagnosis is made until specific imaging identifies the structures as the source of the pain. Diagnostics are essential in guiding therapeutic practices because they provide valuable information about the therapeutics that may be required. While singular pathologies occur, it’s not uncommon for horses to be affected by numerous pathology sites within a lameness episode. Navicular cases are a good example of multifactorial lameness.
Magnetic resonance imaging has broadened hoof-care providers’ awareness of the complexities of lameness. When navicular is diagnosed with advanced imaging, the deep digital flexor tendon, the navicular bursa and the navicular bone can be a source of pain for a horse. In addition to gaining clarity through diagnostics, hoof-care providers must recognize complementary and non-complementary lamenesses.
Non-complementary lamenesses occur when therapeutic techniques are contraindicated. This can be identifiable when a horse has two pathologies occurring in a limb. For example, continuing from the navicular syndrome example, a suspensory ligament lesion could be a pathology site and therefore an active source of pain for the horse. In this case, therapeutic intervention would be redundant, as the therapy for each pathology would cause harm to the opposing pathological structure.
Fluid Hoof Care
Hoof-care providers have access to many therapeutic devices, and each has their place within the hoof-care industry. It’s the hoof-care provider’s responsibility to decide when and how much therapy is applied to the horse in a remedial setting. Therapeutically, the value of therapy a hoof-care provider uses must be relevant to the pathology the horse has incurred. Without an awareness of rehabilitation, the value of therapeutic hoof care can fall out of context for the rehabilitation process. This brings fluidity to hoof care.
Owners, veterinarians and hoof care providers must recognize the need to adjust therapies as cases improve or worsen. It’s often best to consult the veterinarian working on the case to ensure both parties agree on the best way to provide effective care when horses are affected by lameness.
For therapeutic practices to be effective, hoof-care providers must assess each element of the horse's limb. Incorporating the assessment into hoof-care practice can improve equine welfare, as the therapy is more relevant to the case. Stuart Muir
When hoof-care providers choose to employ therapeutic hoof care, they must consider the effect of therapy on the hoof capsule’s morphology. Heel wedging and unilateral support can create localized compression and alter the distribution of force that occurs throughout the hoof capsule. If therapeutic practices create hoof capsule deformation, it’s often attributed to center-of-force or center-of-pressure (COP) activity.
The COP can passively antagonize hoof capsule morphology, and, over time, it can cause regionalized ischemia, which may reduce epidermal proliferation. In this capacity, a hoof-care provider may need to provide additional sole support, as this can help distribute load and make therapeutics more sustainable over extended periods.
The sustainability of therapeutic hoof-care practices is rarely discussed, as most owners and hoof-care providers focus on ensuring the horse returns to soundness quickly. For hoof-care providers, it’s important to ensure that the horse is trimmed or shod with relevant, appropriate hoof care and receives continued care. Without awareness of the rehabilitation timeframe and the hoof capsule’s tendency to yield to load, therapeutic practices may further delay the rehabilitation process if not well developed.
Importance of Compliance
Sustainable hoof-care practices not only affect the horse, but also the hoof-care provider and owner. One of the most challenging aspects of navigating a lameness case are complications. A horse’s rehabilitation can be affected by many factors. Depending on the owner’s commitment to care, rehabilitation may be affected. Management compliance can be a major factor that can affect the outcome of a case.
Therapeutics can be financially demanding for an owner and hoof-care provider. Running a successful business is challenging enough without committing time to a case that has no financial return. Therefore, hoof-care providers must have a transparent conversation with the owner regarding the complexity of the case, the therapeutics they evaluate as being appropriate and also the fluid nature of lameness cases.
Know the Why Behind the Work
The Eight Pillars of Equine Podiatry offers a comprehensive, modern framework for understanding the horse’s hoof capsule and its critical role in optimizing soundness and performance.
Moving beyond traditional approaches to hoof care, this book presents an integrative model built on eight essential pillars: limb conformation, hoof capsule metrics, center-of-pressure management, locomotion, environmental factors, pathology, sustainability and hoof-care practice.
Grounded in both science and real-world experience, The Eight Pillars of Equine Podiatry is an essential guide for those committed to improving soundness, longevity and welfare of the modern horse.
Available exclusively at the8pillarsofequinepodiatry.com
Therapeutic hoof care is becoming increasingly popular with owners, veterinarians and providers as it actively supports equine welfare. As lameness cases are diagnosed more frequently and rehabilitated with therapeutics, equine professionals will be more likely to recommend hoof-care practices because of their effectiveness. In this capacity, hoof-care providers are well positioned to contribute to equine welfare with therapeutic intervention.
In the author’s experience, therapeutic hoof-care formulas must be well developed and individualized to the horse’s specific requirements. The evaluation process for an effective, sustainable therapeutic hoof-care formula must incorporate eight fundamentals: limb conformation, hoof capsule morphology, COP management, limb physiology, environmental stressors, pathology and sustainable hoof-care practices. Incorporating each of these pillars into a therapeutic formula helps ensure the horse receives care tailored to its specific requirements.
REFERENCES
- Curtis S. Farriery: Foal to Racehorse, RW Pubns Ltd., Newmarket, England, 1999.
- Curtis S. Corrective Farriery: A Textbook of Remedial Horseshoeing, Vol. 1, RW Pubns Ltd., Newmarket, England, 2007.
- Curtis, S. Corrective Farriery: A Textbook of Remedial Horseshoeing, Vol. 2, RW Pubns Ltd., Newmarket, England, 2006.
- Morrison SE. (2020) Shoeing Around the Coffin Joint. Proc. Am. Ass. Equine Practnrs.
- Morrison SE. (2012) Hoof Capsule Distortions and How They Affect Internal Structures. Proc. Bain Fallon Lectrs.
- Morrison SE. (2008) Hoof Balance and Function. N. Am. Vet. Conf.
- Bras RJ. (2001) Mechanical Principles of the Equine Foot. Vet. Clin. N. Am., Equine Pract.
- Colahan PT, Leach DH & Muir GD. (1991) Center of Pressure Location of the Hoof with and without Hoof Wedges. Vet. Surg.
- Day P, Butts D, Pfau T, Pardoe C & Weller R. (1991) Does hoof deformation differ between horses with collapsed heels and horses with non-collapsed heels? J. Equine Vet. Sci.
- Muir S. The Eight Pillars of Equine Podiatry, 2026.
