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Hoof kinetic patterns differ between sound and laminitic horses.

声音马和薄板马的蹄动模式不同。

  • 影响因子:0
  • DOI:10.1111/evj.13311
  • 作者列表:"Al Naem M","Litzke LF","Failing K","Burk J","Röcken M
  • 发表时间:2021-05-01
Abstract

BACKGROUND:No kinetic data on hoof loading in laminitic horses are available, despite their importance for optimising supportive shoeing therapies. OBJECTIVES:To quantify the load distribution pattern in laminitic and sound horses. STUDY DESIGN:Controlled observational study. 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™ System. Kinetic parameters were recorded and compared between hoof regions and groups using covariance analyses and t tests (P < .05). 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:Measurements were not obtained in horses with acute laminitis on admission, to avoid risk of further damage to the lamellae. 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.

摘要

背景: 没有关于板层马蹄负荷的动力学数据,尽管它们对于优化支持性鞋垫疗法很重要。 目的: 量化板层和健全马的负荷分布模式。 研究设计: 对照观察性研究。 方法: 将54匹音马和椎板马分为三组: 对照组 (音马) 、患有急性椎板炎的组1 (G1) 马,在急性临床体征消退后立即进行评估,和组2 (G2) 6-12周无急性椎板炎体征的马。在赤脚条件下的两个前肢的测量在行走期间使用蹄进行。™系统。使用协方差分析和t检验记录和比较蹄区和组之间的动力学参数 (P <.05)。 结果: 在对照组中,趾区的峰值负荷发生在中间阶段,但在椎板型马中,峰值负荷发生在休息期间。这通过在脚趾中达到峰值垂直力的时间来反映,该时间在对照组中与椎板马 (G1和G2) 相比显著更短 (76% ± 6% vs 89% ± 9 [P =。002],86% ± 7 [P =。001] 的姿态持续时间分别)。对照组中脚趾的相对垂直力 (46% ± 7%) 显著高于椎板型马 (G1: 29% ± 9% [P = .001]; G2: 32% ± 10% [P = .003])。与对照组相比,椎板型马的主要负荷发生在趾和中蹄区域之间。G1和g2之间没有发现显著差异。 主要限制: 入院时未对患有急性椎板炎的马进行测量,以避免对椎板进一步损害的风险。 结论: 椎板炎的支持治疗应侧重于支持尾部和中蹄区域,以降低这些区域的峰值压力,并缓解趾最大负荷期间的破裂。

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