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Comparison of an inertial sensor system of lameness quantification with subjective lameness evaluation.
Abstract: Subjective evaluation of mild lameness has been shown to have poor interobserver reliability. Traditional methods of objective lameness evaluation require specialised conditions and equipment. Wireless inertial sensor systems have been developed to allow for simple, rapid, objective lameness detection in horses trotted over ground. Objective: The purpose of this study was to compare the sensitivities of an inertial sensor system and subjective evaluation performed by experienced equine practitioners at detecting lameness in horses. We hypothesised that the inertial sensor system would identify lameness at a lower level of sole pressure than a consensus of 3 experienced equine veterinarians. Methods: Fifteen horses were fitted with special shoes that allowed for lameness induction via sole pressure. Horses were simultaneously evaluated by 3 equine veterinarians and a wireless inertial sensor system. Horses were subjected to multiple trials: 1) before inserting the screw; 2) after inserting the screw to just touch the sole; and 3) after tightening the screw in half turn increments. The number of screw turns required for lameness identification in the correct limb by the inertial sensors and by consensus of 3 equine veterinarians was compared using the Wilcoxon test. Results: The inertial sensor system selected the limb with the induced lameness after fewer screw turns than did the 3 veterinarians (P<0.0001). The inertial sensor system selected the correct limb before the 3 veterinarians in 35 trials (58.33%), the evaluators selected the correct limb before the inertial sensors in 5 trials (8.33%), and in 20 trials (33.33%) they selected the correct limb at the same time. Conclusions: The inertial sensor system was able to identify lameness at a lower level of sole pressure than the consensus of 3 equine veterinarians. The inertial sensor system may be an effective aid to lameness localisation in clinical cases.
© 2012 EVJ Ltd.
Publication Date: 2012-05-06 PubMed ID: 22563674DOI: 10.1111/j.2042-3306.2012.00571.xGoogle Scholar: Lookup The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
- Evaluation Study
- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
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This study compares the effectiveness of a wireless inertial sensor system and traditional subjective evaluation by experienced veterinarians in detecting lameness in horses. The results suggest that the inertial sensor system is more sensitive and can identify lameness at a lower level of sole pressure than a consensus of three equine veterinarians.
Introduction
- The researchers highlighted the challenge of accurately evaluating mild lameness in horses, noting the unreliability of subjective observations and the limitations of traditional, objective evaluation methods which require specialized conditions and equipment.
- They introduced wireless inertial sensor systems as a more simple and rapid alternative designed for easy lameness detection when a horse is trotting on the ground.
- The main aim of the research was to compare the effectiveness of this inertial sensor technology with the traditional subjective evaluation by experienced veterinarians.
Methods
- Fifteen horses were used in the study, all fitted with special shoes that enabled the researchers to induce lameness by increasing the pressure on the sole of their feet.
- These horses were evaluated by both three equine veterinarians and a wireless inertial sensor system.
- The horses were subjected to several trials involving the incremental tightening of a screw to increase the pressure on the sole. The resulting degree of lameness was then assessed by both methods.
- Both the inertial sensors and the consensus of the veterinarians were compared based on the number of screw turns needed to identify lameness in the correct limb using the Wilcoxon statistical test.
Results
- The results show that the inertial sensor system could detect the lameness after fewer screw turns than the veterinarians, indicating its superior sensitivity.
- Further, in most trials, the inertial sensors identified the correct lame limb before the veterinarians did.
Conclusion
- The study concluded that the inertial sensor system could detect lameness at a lower level of sole pressure than a consensus of three veterinarians.
- This suggests that inertial sensor systems may be a more effective tool for lameness detection in clinical cases. Thus, such systems could enhance equine healthcare by allowing early detection and treatment of lameness issues.
Cite This Article
APA
McCracken MJ, Kramer J, Keegan KG, Lopes M, Wilson DA, Reed SK, LaCarrubba A, Rasch M.
(2012).
Comparison of an inertial sensor system of lameness quantification with subjective lameness evaluation.
Equine Vet J, 44(6), 652-656.
https://doi.org/10.1111/j.2042-3306.2012.00571.x Publication
Researcher Affiliations
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, Missouri, USA. mccrackenme@missouri.edu
MeSH Terms
- Animals
- Biomechanical Phenomena
- Forelimb / physiopathology
- Hindlimb / physiopathology
- Horse Diseases / diagnosis
- Horse Diseases / physiopathology
- Horses
- Lameness, Animal / diagnosis
- Monitoring, Ambulatory / veterinary
- Pain / diagnosis
- Pain / veterinary
- Wireless Technology / instrumentation
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