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Home / Equine Research Bank / Anat Histol Embryol / Radiographic assessment of carpal conformation in the horse:...
Anatomia, histologia, embryologia2020; 50(2); 284-299; doi: 10.1111/ahe.12627

Radiographic assessment of carpal conformation in the horse: Technique development and validation of the consistency of measurements.

Abstract: Carpal conformation is often considered as a contributory factor to performance and lameness in the horse; however, few attempts have been made to objectively measure radiographic variations of carpal conformation in horses due to insufficient measurable carpal parameters. This pilot study used carpal radiographic images acquired from 10 cadaveric equine forelimbs transected at the antebrachial midshaft from 7 adult horses (7.2 ± 2.6 years), positioned at 'zero lateromedial' (ZLM) and 'zero dorsopalmar' (ZDP) views, to investigate the anatomy of the equine carpus and develop parameters that could be objectively used to assess carpal conformation in horses. Dorsal carpal angle (DCA: 176.61 ± 0.66º), distal radial slope carpal angle (DRSCA: 145.59 ± 2.19º), intermediate carpal bone proximal tuberosity-radial angle (CiPxTRA: 115.69 ± 3.15º) and third carpal bone palmar facet angle (C3PalFCA: 84.43 ± 1.13º) were all developed from the ZLM view while medial carpal angle (MCA: 183.34 ± 1.02º), disto-dorsal slope angle of the third carpal bone (C3DDSA: 8.27 ± 0.92º) and width ratio of distal radius to proximal metacarpus (WDR:WPM = 1.13±0.03) were 3 of the 10 parameters developed from the ZDP view. Easy to identify and measurable parameters will help to provide quantitative assessment of carpal conformation in the horse with potential of eliminating subjective observational variation errors between clinicians. These newly developed parameters will be useful in further studies to measure variations in the conformation of the equine carpus in live horses and comparison between subjective visual assessment and objective radiographic evaluation methods.
© 2020 Wiley-VCH GmbH.
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Publication Date: 2020-11-05 PubMed ID: 33152134DOI: 10.1111/ahe.12627Google Scholar: Lookup
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Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

The research analyses and measures the carpal conformation (wrist alignment) in horses, which has been associated with performance and lameness. Through radiographic images of horse forelimbs, the study presents several newly developed parameters for objective assessment, aiming to replace subjective evaluations that may cause observational variations.

Background of the Research

  • Performance and lameness in horses are often attributed to carpal conformation, however, the scientific measurement of these variables has been limited due to a lack of measurable parameters.
  • Subjective observational evaluations, which are currently employed, can lead to inconsistency due to variations between different clinicians’ perspectives.

Methodology

  • The researchers examined radiographic images from the forelimbs of ten horse cadavers. These legs had been cut at the midshaft of the antebrachium (forearm region).
  • The images were studied from ‘zero lateromedial’ (ZLM) and ‘zero dorsopalmar’ (ZDP) viewpoints.
  • Seven unique horses, averaging 7.2 years old, with a standard deviation of 2.6 years, provided the limbs for this study.

Findings

  • From the ZLM view, the following parameters were developed: dorsal carpal angle, distal radial slope carpal angle, intermediate carpal bone proximal tuberosity-radial angle, and third carpal bone palmar facet angle.
  • From the ZDP view, the following parameters were developed: medial carpal angle, disto-dorsal slope angle of the third carpal bone, and the width ratio of distal radius to proximal metacarpus.

Implications of the Research

  • The research successfully provides several new, measurable parameters for the objective assessment of carpal conformation in horses.
  • These parameters can potentially eliminate the subjective variation errors that can occur between different clinicians’ observational evaluations.
  • The findings pave the way for further studies to measure variations in the conformation of the equine carpus in live horses, and allow for a comparison between subjective visual assessments and objective radiographic evaluation methods.

Cite This Article

APA
Olusa TAO, Ismail SMY, Murray CM, Davies HMS. (2020). Radiographic assessment of carpal conformation in the horse: Technique development and validation of the consistency of measurements. Anat Histol Embryol, 50(2), 284-299. https://doi.org/10.1111/ahe.12627

Publication

Anatomia, histologia, embryologia
ISSN: 1439-0264
NlmUniqueID: 7704218
Country: Germany
Language: English
Volume: 50
Issue: 2
Pages: 284-299

Researcher Affiliations

Olusa, Timothy A O
  • Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribee, Vic., Australia.
Ismail, Sa'ad M Y
  • Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribee, Vic., Australia.
Murray, Christina M
  • Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribee, Vic., Australia.
Davies, Helen M S
  • Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Werribee, Vic., Australia.

MeSH Terms

  • Animals
  • Carpal Bones / diagnostic imaging
  • Carpus, Animal / diagnostic imaging
  • Forelimb / diagnostic imaging
  • Horse Diseases / diagnostic imaging
  • Horses
  • Pilot Projects
  • Radiography

Grant Funding

  • The University of Melbourne, Australia

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