On the brink of daily clinical application of objective gait analysis: What evidence do we have so far from studies using an induced lameness model?
Authors: Serra Bragança F M, Rhodin M, van Weeren P R
Journal: Veterinary journal (London, England : 1997)
Summary
Objective gait analysis systems are increasingly marketed to equine practitioners as tools to enhance clinical lameness assessment, yet the evidence base supporting specific measurement parameters remains inconsistent and poorly understood by end-users. This 2018 review by Bragança, Rhodin and van Weeren synthesised findings from experimentally induced lameness models to evaluate which gait variables are scientifically validated and suitable for routine clinical use. The authors examined the methodologies underpinning the most widely adopted gait analysis platforms and critically assessed which measured parameters reliably quantify lameness-induced gait changes, considering the biomechanical principles governing equine locomotion. Their findings emphasise that whilst quantitative gait analysis offers valuable objectivity compared to subjective visual assessment, many commercially available systems lack robust evidence linking their output variables to actual functional impairment—a crucial distinction for clinical decision-making. Practitioners evaluating gait analysis technology should scrutinise the scientific validation of specific parameters before adopting systems for diagnostic or prognostic purposes, as current evidence gaps risk misinterpretation of data that appears objective but may lack biological relevance to the horse's actual locomotor dysfunction.
Read the full abstract on PubMed
Practical Takeaways
- •Objective gait analysis systems are approaching routine clinical use but only parameters backed by solid scientific evidence should inform treatment decisions
- •Understanding the biomechanical principles underlying gait measurements is essential for correct interpretation of results in your clinical cases
- •Evidence from controlled lameness studies validates which specific gait parameters are reliable indicators of lameness severity and can be used confidently in practice
Key Findings
- •Quantitative gait analysis provides objective, unbiased gait information to assist clinical decision-making in equine orthopaedics
- •Growing number of gait analysis systems available commercially reflects increasing demand for objective gait assessment technology
- •Measured variables used as outcome parameters must be supported by scientific evidence and grounded in biomechanical principles of equine locomotion
- •Studies using experimentally induced lameness models provide foundation for identifying gait parameters capable of quantifying lameness-related gait changes