单次修剪事件后马前足太阳表面压力分布的变化与外部蹄部测量值相关。

Changes in pressure distribution of the solar surface after a single trimming event are associated with external hoof measurements in the equine fore foot.

作者信息

Seery Sarah, Gardiner James, Bates Karl T, Pinchbeck Gina, Clegg Pete, Ireland Joanne L, Milner Peter I

机构信息

Department of Equine Clinical Science, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Neston, UK.

Department of Sport and Exercise Sciences, Manchester Metropolitan University, Manchester, UK.

出版信息

Equine Vet J. 2025 Sep;57(5):1255-1264. doi: 10.1111/evj.14463. Epub 2025 Jan 9.

DOI:10.1111/evj.14463

PMID:39785669

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12326951/

Abstract

BACKGROUND

Trimming is critical for a functioning equine hoof. Pressure distribution provides information on loading; however, information on the effects of trimming on pressure distribution is lacking.

OBJECTIVES

To describe the pressure changes of equine fore feet following trimming.

STUDY DESIGN

Cross-sectional cohort study.

METHODS

Fifty sound horses were recruited. Eighteen external hoof measures of the dorsal, lateral, medial and solar aspects were obtained before and after trimming from 94 fore feet. Horses were walked over a pressure mat before and after trimming and pressure maps of the solar surface created. Percentage change in hoof measures were assessed. Factors associated with an increase in pressure in the frog region after trimming were entered into a forward likelihood ratio logistic regression model. Odd ratios (ORs) with 95% confidence intervals (CI) and area under the curve receiver operator characteristics (AUROC) were calculated. Sensitivity and specificity were calculated at a cut-off value of p = 0.5.

RESULTS

Trimming resulted in a significant increase in pressure, topographically mapped to the frog region, in 12/94 (13% 95% CI 6; 20) feet. Percentage difference in bearing border length (OR 0.66 95% CI 0.51; 0.86), heel buttress to centre of pressure distance (OR 1.30 95% CI 1.10; 1.53), heel angle (lateral side) (OR 1.11 95% CI 1.04; 1.19) and heel length (medial side) (OR 0.92 95% CI 0.85; 0.99) were retained in the final model associated with increased pressure in the frog region following trimming. AUROC was excellent (0.94 95% CI 0.88; 0.99) with fair sensitivity (58% [95% CI 50; 66]) and excellent specificity (98% [95% CI 78; 118]).

MAIN LIMITATIONS

Subjective lameness exam; horse velocity unmeasured.

CONCLUSIONS

Measuring pressure changes over the solar surface of the equine fore foot after trimming identified that an increased pressure in the frog region was linked to specific changes in hoof shape.

摘要

背景

蹄修整对于正常发挥功能的马蹄至关重要。压力分布提供了关于负荷的信息；然而，关于蹄修整对压力分布影响的信息却很缺乏。

目的

描述蹄修整后马前蹄的压力变化。

研究设计

横断面队列研究。

方法

招募了50匹健康马匹。从94只前蹄在修整前后获取了背侧、外侧、内侧和跖侧的18项蹄部外部测量数据。马匹在修整前后走过压力垫，并创建跖面的压力图。评估蹄部测量值的百分比变化。将与修整后蛙部区域压力增加相关的因素纳入向前似然比逻辑回归模型。计算了具有95%置信区间（CI）的比值比（OR）和曲线下面积受试者工作特征（AUROC）。在p = 0.5的临界值下计算敏感性和特异性。

结果

在94只蹄中的12只（13%，95%CI 6；20）中，蹄修整导致压力显著增加，在地形图上显示为蛙部区域。最终模型保留了与修整后蛙部区域压力增加相关的负重边缘长度百分比差异（OR 0.66，95%CI 0.51；0.86）、足跟支撑至压力中心距离（OR 1.30，95%CI 1.10；1.53）、足跟角度（外侧）（OR 1.11，95%CI 1.04；1.19）和足跟长度（内侧）（OR 0.92，95%CI 0.85；0.99）。AUROC极佳（0.94，95%CI 0.88；0.99），敏感性一般（58%[95%CI 50；66]），特异性极佳（98%[95%CI 78；118]）。