Hoey S E, Biedrzycki A H, Livesey M J, Drees R
Veterinary Diagnostic Imaging, University College Dublin, School of Veterinary Medicine, Dublin, Ireland.
Department of Large Animal Clinical Science, University of Florida, Gainesville, FL, USA.
Vet Rec. 2016 Nov 26;179(21):546. doi: 10.1136/vr.103689. Epub 2016 Aug 24.
Juvenile bovine patients who present with clinical signs of lameness are commonly evaluated using radiographic techniques both within a hospital setting and in a farm environment. The radiographic development of the juvenile bovine skeleton is currently poorly documented. In this study, the limbs of four heifer calves were sequentially radiographed to assess development of the juvenile bovine appendicular skeleton in the first 12 months of life. Images were acquired at three weeks, three months, six months, nine months and one year of age. The normal radiographic anatomy of the fore limbs and hindlimbs and the changes over the first 12 months are described. The majority of physes remain open throughout this period, with the exception of the proximal physes of the proximal and middle phalanges, the proximal radial physis, and the proximal humeral physis which close radiographically between 9 months and 12 months of age, and fusion of the fourth and central tarsal bones occurs between 9 months and 12 months of age. The results of this study may aid in differentiating normal and abnormal anatomy in the juvenile bovine limb.
出现跛行临床症状的幼年牛患者通常在医院环境和农场环境中使用放射技术进行评估。目前关于幼年牛骨骼放射学发育的文献记载很少。在本研究中，对四头小母牛犊的四肢进行了连续放射摄影，以评估幼年牛附属骨骼在出生后12个月内的发育情况。在三周、三个月、六个月、九个月和一岁时采集图像。描述了前肢和后肢的正常放射解剖结构以及头12个月内的变化。在此期间，大多数骺板保持开放状态，但近节和中节指骨的近端骺板、桡骨近端骺板和肱骨近端骺板在9个月至12个月龄之间在放射学上闭合，第四跗骨和中央跗骨在9个月至12个月龄之间融合。本研究结果可能有助于区分幼年牛肢体的正常和异常解剖结构。
