Proximal anatomic radial axis
Proximal anatomic radial axis
定义
桡骨近端解剖轴是用于评估桡骨成角畸形并指导矫正的解剖标志。由于犬桡骨存在正常的前弓（procurvatum），桡骨解剖轴不能以单一直轴来描绘，因此将其分为两段：桡骨近端解剖轴与桡骨远端解剖轴。
桡骨近端解剖轴在矢状面内确定，依据桡骨的内外侧位X线片或多平面重建图像。在骨体近端三分之一处作两条垂直于桡骨体的直线，桡骨近端解剖轴即连接这两条直线中点的连线。
桡骨近端解剖轴与桡骨远端解剖轴的交点即确定了桡骨的成角旋转中心（Centre of Orientation of Angulation，CORA）。
參考資料
Fox et al. (2006). Principles of Uniapical and Biapical Radial Deformity Correction Using Dome Osteotomies and the Center of Rotation of Angulation Methodology in Dogs. Veterinary Surgery;35:67–77. doi:10.1111/j.1532-950X.2005.00114.x
Fox J, Tomlinson JL. Principles of Angular Limb Deformity Correction. In: Tobias KM, Johnston SA, editors. Veterinary Surgery Small Animal. St Louis (MI): Elsevier Saunders; 2012. p.657-668.
Kwon et al. (2022). Evaluation of the radial procurvatum using the center of rotation of angulation methodology in chondrodystrophic. Dogs Front Vet Sci; 8:774993. doi: 10.3389/fvets.2021.774993
