Hull B L, Koenig G J, Monke D R
Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Ohio State University, Columbus 43210-1089.
J Am Vet Med Assoc. 1990 Dec 1;197(11):1509-12.
A mixed population of 11 cattle (7 dairy, 4 beef; 9 male, 2 female) were examined because of acute onset of non-weightbearing hind limb lameness. Radiography revealed slipped capital femoral epiphyseal fracture in all cattle, with the exception of one large bull. Ten of the 11 cattle were treated with open reduction and internal fixation, using intramedullary pins. Cattle affected with slipped capital femoral epiphyseal fracture in previous reports typically have been calves that required forced extraction during dystocia. Cattle in this report were in the following 2 age groups in which trauma was the likely cause: 3 to 5 months and 1.5 to 2.3 years. Follow-up information was provided for 7 of the 10 cattle. Four of the 7 were functional and had no clinical signs of arthritis, abnormal gait, atrophy, scarring, contralateral compensation, breakdown, or other difficulty 6 months after surgical correction. If early diagnosis is achieved, it appears that reduction with intramedullary pinning can provide a good long-term prognosis in cattle when function as breeding animals is important to their future value.
11头混合品种的牛（7头奶牛，4头肉牛；9头公牛，2头母牛）因后肢急性非负重性跛行接受检查。除一头大公牛外，所有牛均经X线检查显示为股骨头骨骺滑脱骨折。11头牛中有10头接受了切开复位内固定治疗，使用髓内针。以往报告中受股骨头骨骺滑脱骨折影响的牛通常是难产时需要强行助产的犊牛。本报告中的牛处于以下两个可能由外伤导致骨折的年龄组：3至5个月和1.5至2.3岁。对10头牛中的7头提供了随访信息。7头牛中有4头功能正常，术后6个月无关节炎、异常步态、萎缩、瘢痕形成、对侧代偿、失用或其他困难的临床症状。如果能早期诊断，当作为种畜的功能对其未来价值很重要时，髓内针固定复位似乎能为牛提供良好的长期预后。
