Barrett Myra F, McIlwraith C Wayne, Contino Erin K, Park Richard D, Kawcak Christopher E, Frisbie David D, zumBrunnen James R
J Am Vet Med Assoc. 2018 Jan 1;252(1):108-115. doi: 10.2460/javma.252.1.108.
OBJECTIVE To investigate potential associations between repository radiographic findings and subsequent performance of Quarter Horses competing in cutting events. DESIGN Retrospective cohort study. SAMPLE Repository radiographs (ie, radiographs obtained at the time of sale) for 343 client-owned horses. PROCEDURES Repository radiographic findings were compared with objective measures of performance, including the likelihood of competing; the likelihood of earning money as a 3-year-old, as a 4-year-old, and as a 3- and 4-year-old combined; and the amount of money earned as a 3-year-old, as a 4-year-old, and as a 3- and 4-year-old combined. RESULTS The presence of mild osteophytes involving the distal aspect of the tarsal joint was significantly associated with lower mean earnings as a 4-year-old. The presence of osteophytes on the dorsoproximal aspect of the middle phalanx of the hind limbs was significantly associated with an increased odds of earning money as a 4-year-old. Radiographic lesions of the medial femoral condyle of the stifle joint were not significantly associated with subsequent performance. CONCLUSIONS AND CLINICAL RELEVANCE Most abnormalities identified on repository radiographs were not significantly associated with subsequent performance. The significant association between mild tarsal osteophytosis and earnings was unexpected. Results of the present study indicated the need for further investigation of the relationship between radiographic findings and performance outcome in Western performance horses.
目的 研究 Quarter 马在切割比赛中的储存库X光检查结果与后续表现之间的潜在关联。 设计 回顾性队列研究。 样本 343 匹客户拥有马匹的储存库X光片（即销售时获得的X光片）。 程序 将储存库X光检查结果与表现的客观指标进行比较，包括参赛的可能性；三岁、四岁以及三岁和四岁综合起来赚钱的可能性；以及三岁、四岁以及三岁和四岁综合起来赚取的金额。 结果 跗关节远端出现轻度骨赘与四岁时较低的平均收入显著相关。后肢中节指骨背近端出现骨赘与四岁时赚钱几率增加显著相关。膝关节内侧股骨髁的X光病变与后续表现无显著关联。 结论及临床意义 在储存库X光片上发现的大多数异常与后续表现无显著关联。轻度跗骨骨赘与收入之间的显著关联出乎意料。本研究结果表明需要进一步研究西方表演马的X光检查结果与表现结果之间的关系。
