Navicular bone disease: a comparative histomorphometric study.
Authors: Ostblom, Lund, Melsen
Journal: Equine veterinary journal
Summary
# Editorial Summary: Navicular bone disease histomorphometric study Navicular disease remains a significant cause of lameness in performance horses, yet evidence supporting specific therapeutic interventions has traditionally relied on clinical observation rather than quantitative pathological data. Ostblom and colleagues conducted a six-month prospective controlled study examining bone histology and morphometry in twelve affected horses, comparing untreated animals with those managed using egg-bar shoeing, against tissue samples from three clinically normal controls. The researchers identified specific quantifiable changes in bone structure and remodelling patterns associated with the disease, and crucially, demonstrated measurable histological improvements in the shod group that correlated with previously documented clinical recovery. The study's detailed analysis of pathophysiological bone reactions—including alterations in bone density, resorption patterns, and new bone formation—provides mechanistic insight into why certain farriery techniques appear beneficial where others do not. For practitioners, these findings offer histological validation that egg-bar shoeing produces genuine structural bone changes rather than symptomatic relief alone, supporting its continued use as a primary intervention in navicular disease management, though the small sample size warrants consideration when applying findings to individual cases.
Read the full abstract on PubMed
Practical Takeaways
- •Egg-bar shoeing provides measurable structural bone changes in navicular disease cases, supporting its use as a treatment modality
- •Histomorphometric data quantify previously observed clinical improvements, giving farriers and veterinarians objective evidence for this shoeing technique
- •Regular monitoring and comparison to normal bone morphology may help assess treatment efficacy in individual cases
Key Findings
- •Egg-bar shoeing technique produced quantifiable histological improvements in navicular bone structure compared to untreated controls
- •Detailed histomorphometric analysis revealed specific changes in bone morphometry associated with the shoeing intervention
- •Clinical improvement observed in treated animals was supported by quantitative histological evidence
- •Pathophysiological reactions in navicular bone disease were characterized through comparative histology of diseased versus normal bone