O'Grady Stephen E
Northern Virginia Equine, 8170 Patrickswell Lane, Marshall, VA 20116, USA.
Vet Clin North Am Equine Pract. 2012 Aug;28(2):381-92. doi: 10.1016/j.cveq.2012.05.002. Epub 2012 Jul 18.
Sheared heels develop as an adaptation-distortion of the hoof capsule as a result of an abnormal strike and loading pattern of the foot, which is generally a consequence of limb conformation. The growth rate around the circumference of the hoof should be approximately uniform, but regional disturbances in growth rate can occur to either increase or decrease growth. The primary conformational trait that is observed in horses that develop sheared heels is a rotational deformity of the distal limb and a narrow chest. Farriery is directed toward improving the hoof capsule distortion and decreasing the forces on the displaced side of the foot.
蹄踵剪切伤是由于足部异常着地和负重模式导致蹄匣适应性变形而形成的,这通常是肢体形态的结果。蹄周缘的生长速度应大致均匀,但生长速度可能会出现局部紊乱,导致生长增加或减少。出现蹄踵剪切伤的马匹中观察到的主要形态特征是远端肢体旋转畸形和胸廓狭窄。蹄铁术旨在改善蹄匣变形并减少足部移位侧的受力。