ABSTRACT Sheared heel is a medial displacement caused by repetitive overloading on the palmar area, traditionally managed with a straight bar shoe. There are no reports of using z-bar shoes in horses with a sheared heel. The present study aims to investigate the effectiveness of z-bar shoeing and time required for sheared heel management. 3 show-jumping horses with medial palmar displacement on both front hooves (n = 6) were studied. The horses underwent lameness examination before study and radiography was performed on the affected feet. Z-bar shoes fitted with the large open space on the medial side, were applied for 48 weeks at 6 weeks intervals. Prior to shoeing, the affected hooves were placed on a clay mould and the impressions obtained were divided into 6 parallel lines. Each of the 6 lines was measured for medial/lateral ratio. There was no change in length ratios of the first, second and third lines at the toe to quarter region. A significant increase in length ratios of the fourth and fifth lines but marginal increase in the sixth line were noted 30 weeks post-shoeing. The z-bar shoes promote the expansion of the affected palmar area within 30 weeks of shoeing in horses with sheared heel.

中文翻译：

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z-bar穿鞋法对剪蹄三马蹄壁表面尺寸及治疗性穿鞋所需时间的影响

摘要 脚后跟是由手掌区域重复超负荷引起的内侧位移，传统上通过直杆鞋进行处理。没有关于在脚跟被剪掉的马身上使用 z-bar 鞋的报道。本研究旨在调查 z-bar 鞋的有效性和剪后跟管理所需的时间。研究了 3 匹双前蹄内侧掌移位的跳马马 (n = 6)。这些马在研究前接受了跛行检查，并对受影响的脚进行了射线照相。Z-bar 鞋在内侧装有大的开放空间，每 6 周使用 48 周。在穿鞋之前，将受影响的蹄子放在粘土模具上，将获得的印痕分成 6 条平行线。测量 6 条线中的每条线的内侧/外侧比率。脚趾与四分之一区域的第一、第二和第三条线的长度比没有变化。鞋后 30 周注意到第四和第五行的长度比率显着增加，但第六行的长度比率略有增加。z-bar 鞋在马蹄跟剪毛后 30 周内促进受影响手掌区域的扩张。