Short-term effect of therapeutic shoeing on severity of lameness in horses with chronic laminitis.
Authors: Taylor, Hood, Wagner
Journal: American journal of veterinary research
Summary
# Editorial Summary Taylor, Hood and Wagner (2003) investigated whether four commonly advocated therapeutic shoeing systems could provide short-term lameness relief in horses with established chronic laminitis, addressing a gap between clinical expectation and evidence-based outcomes. Using a rigorous crossover design with ten affected horses, the researchers compared a standard flat shoe, fullered egg-bar, heart-bar, and modified equine digital support system, assessing changes over a 7-day period using both subjective measures (Obel grading and clinical scoring) and objective force-plate analysis. Notably, none of the four shoeing interventions produced significant improvements in lameness severity during this timeframe, with control data confirming disease status remained stable throughout the trial period. The findings suggest practitioners should counsel owners that substantial clinical improvement cannot reasonably be expected within the first week of therapeutic shoeing—a sobering reality that may require longer observation periods or alternative outcome measures to properly evaluate therapeutic efficacy. These results highlight the importance of setting realistic client expectations and raise important questions about whether lameness severity alone is sufficiently sensitive to detect the incremental biomechanical benefits these shoes may provide, warranting investigation of additional assessment parameters such as gait symmetry, weight-bearing preference, or longer-term follow-up protocols.
Read the full abstract on PubMed
Practical Takeaways
- •Do not expect substantial clinical improvement in lameness severity within the first 7 days after applying therapeutic shoes for chronic laminitis—longer observation periods are needed
- •Assessment of therapeutic shoeing effectiveness should incorporate additional parameters beyond lameness grading, such as comfort indicators and load distribution changes
- •Standard therapeutic shoes tested here (egg-bar, heart-bar, digital support) did not provide rapid relief, suggesting chronic laminitis management requires longer-term intervention strategies
Key Findings
- •None of the four therapeutic shoeing systems (flat shoe, fullered egg-bar shoe, heart-bar shoe, modified equine digital support system) produced significant changes in lameness severity within 7 days
- •Disease status remained stable across the study period with no deterioration in control comparisons
- •Subjective (Obel grade and clinical score) and objective (force-plate) measures showed consistent lack of short-term improvement
- •Lameness severity may not be a valid sole indicator of therapeutic success in the first week following therapeutic shoeing