Abstract：
High-field MRI of the equine stifle provides high-resolution information about soft tissues that is useful in the diagnosis of stifle lameness. The aim of this prospective anatomic study was to describe the appearance, position, size, and shape of the equine femorotibial ligaments, meniscal ligaments, and menisci using 3 Tesla MRI under extended, extended-loaded, and flexed conditions. Additionally, histologic examination of the collateral and cruciate ligaments (CLs) of a single stifle was performed to compare with MRI images. In extension, mild variations in MRI signal intensity were apparent in the CLs, and the cranial had two distinct longitudinal regions indicating two ligament bundles. Flexion had minor effects on CL signal intensity and altered the tibial angles of attachment. Histology indicated that both CLs were comprised of two fiber bundles. The collateral ligaments were the same low-signal intensity. The medial collateral ligament had a smaller cross-sectional area than the lateral, and flexion increased the length of the medial collateral ligament and the cross-sectional area of the lateral. Low loads in extension did not affect the MRI appearance of stifle soft tissues. Flexion of the stifle impacted cruciate ligament insertion angles and the size and shape of collateral ligaments. This study provides support for the use of MRI to understand the anatomy and function of stifle ligaments.
摘要：
马窒息的高场MRI提供了有关软组织的高分辨率信息，可用于诊断窒息性。这项前瞻性解剖研究的目的是描述外观，position,尺寸,和马股胫韧带的形状，半月板韧带,和半月板使用3特斯拉MRI下扩展，扩展加载，和弯曲的条件。此外,对单个窒息的侧支和交叉韧带（CLs）进行了组织学检查，以与MRI图像进行比较。在延伸中，MRI信号强度的轻度变化在CLs中很明显，颅骨有两个不同的纵向区域，表明两个韧带束。屈曲对CL信号强度影响较小，并改变了胫骨附着角。组织学表明两个CL都由两个纤维束组成。侧支韧带具有相同的低信号强度。内侧副韧带的横截面积比外侧小，和屈曲增加了内侧副韧带的长度和外侧的横截面积。低延伸负荷不会影响窒息软组织的MRI外观。交叉韧带插入角度和副韧带的大小和形状的牵伸。这项研究为使用MRI了解窒息韧带的解剖结构和功能提供了支持。
