Schiavo Stefano, Beccati Francesca, Pokora Rachel, Lin Szu Ting, Milmine Rebecca C, Bak Lars, Peter Vanessa G, Murray Rachel C
Rossdales Veterinary Surgeons, Cotton End Rd, Exning, Newmarket CB8 7NN, UK.
Sports Horse Research Centre, Department of Veterinary Medicine, University of Perugia, 06123 Perugia, Italy.
Animals (Basel). 2024 Jun 25;14(13):1866. doi: 10.3390/ani14131866.
Pain localised to the metacarpophalangeal (MCP) and metatarsophalangeal (MTP) region represents a frequent cause of lameness in sport horses, and standing magnetic resonance imaging (MRI) of these regions is increasingly being acquired. This multicentre retrospective study describes the ranges of abnormalities identified on standing MRI of the MCP/MTP region and compares patterns of abnormalities between forelimbs, hindlimbs and different sports disciplines. In total, 341 MRI reports were reviewed. Subchondral bone plate irregularities, condylar and proximal phalanx pathologies were frequently identified with subchondral bone defect, sclerosis and increased intensity on STIR images often described. Medial pathology was frequently identified in the forelimbs, and more lateral pathology was reported in the hindlimbs, which could potentially reflect differences in the loading patterns. Significant differences in MRI findings were found between different sports activities, with MCP/MTP bone pathology occurring more frequently in MRI reports from race and endurance horses and MCP/MTP soft tissue injuries being reported more frequently in dressage and show-jumping horses, particularly in the suspensory apparatus, including the distal sesamoidean ligaments. The findings of this study identify patterns of MCP/MTP abnormalities detected using standing MRI, with differences seen between forelimbs and hindlimbs and between different sports disciplines.
局限于掌指关节（MCP）和跖趾关节（MTP）区域的疼痛是运动马匹跛行的常见原因，这些区域的站立位磁共振成像（MRI）检查越来越普遍。这项多中心回顾性研究描述了在MCP/MTP区域站立位MRI上发现的异常范围，并比较了前肢、后肢以及不同运动项目之间的异常模式。总共审查了341份MRI报告。经常发现软骨下骨板不规则、髁和近节指骨病变，并常描述有软骨下骨缺损、硬化以及短T1反转恢复（STIR）序列图像上信号增强。前肢常发现内侧病变，后肢则更多报告外侧病变，这可能反映了负荷模式的差异。不同体育活动的MRI表现存在显著差异，MCP/MTP骨病变在赛马和耐力赛马的MRI报告中更常见，而MCP/MTP软组织损伤在盛装舞步和场地障碍赛马中报告更频繁，尤其是在悬韧带装置，包括远籽骨韧带。本研究结果确定了使用站立位MRI检测到的MCP/MTP异常模式，前肢和后肢以及不同体育项目之间存在差异。
