Cervantes C, Madison J B, Ackerman N, Reed W O
Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville 32610.
J Am Vet Med Assoc. 1992 Jun 15;200(12):1997-2000.
Between January 1985 and May 1989, 53 Thoroughbred horses (mean age 3.2 years) were surgically treated for dorsal cortical fractures of the third metacarpal bone (MC III). All horses were treated with cortical drilling through the fracture line (osteostixis). Diagnosis of the fractures was confirmed by xeroradiography. Lifetime racing records were obtained for all horses. Forty-seven horses returned to racing after surgery (89%). The mean time between surgery and the first race was 6.8 months. Horses had a mean of 10.9 starts before surgery and 16.1 starts after surgery. The mean earnings per start before surgery was $6,459 and after surgery was $5,685. Of the 47 horses that raced after surgery, 70% raced at the same class or improved. Complications related to surgery were seen in 10 horses. Two horses had a second fracture of MC III at the same site, and were again treated by osteostixis, after which both horses returned to competition. Fractured drill bits were left in the MC III of 4 horses. One of these horses had catastrophic failure of MC III. Two horses developed subcutaneous infections and 2 horses had catastrophic failure of MC III in the surgically treated limb. Osteostixis appears to be an effective treatment for returning horses affected with dorsal cortical fractures to racing.
在1985年1月至1989年5月期间，对53匹纯种马（平均年龄3.2岁）进行了手术治疗，这些马患有第三掌骨（MC III）背侧皮质骨折。所有马匹均通过骨折线进行皮质钻孔治疗（骨钻孔术）。骨折诊断通过干板X线摄影得以证实。获取了所有马匹的终身比赛记录。47匹马术后重返赛场（89%）。手术至首次参赛的平均时间为6.8个月。马匹术前平均参赛10.9次，术后平均参赛16.1次。术前每次参赛平均收益为6459美元，术后为5685美元。在术后参赛的47匹马中，70%在同一级别比赛或成绩有所提高。10匹马出现了与手术相关的并发症。2匹马在同一部位再次发生MC III骨折，再次接受骨钻孔术治疗，之后两匹马均重返赛场。4匹马的MC III中遗留了断裂的钻头。其中一匹马的MC III发生了灾难性故障。2匹马出现皮下感染，2匹马在接受手术治疗的肢体中发生了MC III灾难性故障。骨钻孔术似乎是使患有背侧皮质骨折的马匹重返赛场的一种有效治疗方法。
