Hoof kinetic patterns differ between sound and laminitic horses.
Hoof™ System
horse
laminitis
load distribution pattern
Journal
Equine veterinary journal
ISSN: 2042-3306
Titre abrégé: Equine Vet J
Pays: United States
ID NLM: 0173320
Informations de publication
Date de publication:
May 2021
May 2021
Historique:
revised:
12
05
2020
received:
06
12
2019
accepted:
25
05
2020
pubmed:
17
6
2020
medline:
13
4
2021
entrez:
17
6
2020
Statut:
ppublish
Résumé
No kinetic data on hoof loading in laminitic horses are available, despite their importance for optimising supportive shoeing therapies. To quantify the load distribution pattern in laminitic and sound horses. Controlled observational study. Fifty-four sound and laminitic horses were assigned to three groups: control group (sound horses), group 1 (G1) horses with acute laminitis, evaluated immediately after acute clinical signs subsided, and group 2 (G2) horses that had been free of acute laminitis signs for 6-12 weeks. Measurements on both forelimbs in barefoot condition were performed during walk using the Hoof Peak loading in the toe region occurred during midstance phase in control group, but during break-over in laminitic horses. This is reflected by the time to peak vertical force in the toe, which was significantly shorter in the control group compared to laminitic horses (G1 and G2) (76% ± 6% vs 89% ± 9 [P = .002], 86% ± 7 [P = .001] of stance duration respectively). The relative vertical force in the toe in the control group (46% ± 7%) was significantly higher compared to laminitic horses (G1: 29% ± 9% [P = .001]; G2: 32% ± 10% [P = .003]). The main shift of the load occurred between toe and middle hoof regions in laminitic horses as compared with the control group. No significant differences were found between G1 and G2. Measurements were not obtained in horses with acute laminitis on admission, to avoid risk of further damage to the lamellae. Supportive therapy in laminitis should focus on supporting both caudal and middle hoof areas to decrease the peak pressure in these regions, and ease break-over during which the maximal loading of the toe occurs.
Sections du résumé
BACKGROUND
BACKGROUND
No kinetic data on hoof loading in laminitic horses are available, despite their importance for optimising supportive shoeing therapies.
OBJECTIVES
OBJECTIVE
To quantify the load distribution pattern in laminitic and sound horses.
STUDY DESIGN
METHODS
Controlled observational study.
METHODS
METHODS
Fifty-four sound and laminitic horses were assigned to three groups: control group (sound horses), group 1 (G1) horses with acute laminitis, evaluated immediately after acute clinical signs subsided, and group 2 (G2) horses that had been free of acute laminitis signs for 6-12 weeks. Measurements on both forelimbs in barefoot condition were performed during walk using the Hoof
RESULTS
RESULTS
Peak loading in the toe region occurred during midstance phase in control group, but during break-over in laminitic horses. This is reflected by the time to peak vertical force in the toe, which was significantly shorter in the control group compared to laminitic horses (G1 and G2) (76% ± 6% vs 89% ± 9 [P = .002], 86% ± 7 [P = .001] of stance duration respectively). The relative vertical force in the toe in the control group (46% ± 7%) was significantly higher compared to laminitic horses (G1: 29% ± 9% [P = .001]; G2: 32% ± 10% [P = .003]). The main shift of the load occurred between toe and middle hoof regions in laminitic horses as compared with the control group. No significant differences were found between G1 and G2.
MAIN LIMITATIONS
CONCLUSIONS
Measurements were not obtained in horses with acute laminitis on admission, to avoid risk of further damage to the lamellae.
CONCLUSIONS
CONCLUSIONS
Supportive therapy in laminitis should focus on supporting both caudal and middle hoof areas to decrease the peak pressure in these regions, and ease break-over during which the maximal loading of the toe occurs.
Types de publication
Journal Article
Observational Study, Veterinary
Langues
eng
Sous-ensembles de citation
IM
Pagination
503-509Informations de copyright
© 2020 The Authors. Equine Veterinary Journal published by John Wiley & Sons Ltd on behalf of EVJ Ltd.
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