Paley D, Herzenberg J E, Tetsworth K, McKie J, Bhave A
University of Maryland Center of Limb Lengthening and Reconstruction, Baltimore.
Orthop Clin North Am. 1994 Jul;25(3):425-65.
The authors have developed a universal system of geometric deformity planning based on the mechanical or anatomic axes. The place where the axes intersect is the center of rotation angulation (CORA) of a deformity. Osteotomy level and type should be considered relative to the CORA to avoid creating secondary deformities. This type of planning is applicable to both frontal and sagittal plane deformities.
作者们基于力学轴或解剖轴开发了一种通用的几何畸形规划系统。轴相交的位置是畸形的旋转角中心（CORA）。截骨水平和类型应相对于CORA来考虑，以避免产生继发性畸形。这种规划类型适用于额平面和矢状面畸形。
