Eckhoff D G, Johnson K K
Department of Orthopaedics, University of Colorado Health Sciences, Denver.
Clin Orthop Relat Res. 1994 May(302):42-6.
The accuracy and reproducibility of computed tomography (CT) scanning techniques in assessing tibial version and torsion are measured in this study. A technique of three-dimensional CT reconstruction is introduced to assess the influence of selection and variation of landmarks on rotation measured in the tibia. The authors conclude that, within 2 cm of the articular surface, the level at which the proximal tibial axis is determined has no effect on the degree of torsion measured by CT scan. Furthermore, they conclude that the slope of the proximal tibial cut, with respect to the long tibial axis, has no effect on the measure of tibial torsion. Finally, they conclude that there is no significant difference in tibial torsion measured by reference to the posterior-condylar axis instead of the transtibial axis in cuts below the articular surface.
本研究测量了计算机断层扫描（CT）技术在评估胫骨旋转角度和扭转方面的准确性和可重复性。引入了三维CT重建技术来评估标志点的选择和变化对胫骨旋转测量的影响。作者得出结论，在关节面2厘米范围内，确定近端胫骨轴的水平对CT扫描测量的扭转程度没有影响。此外，他们得出结论，近端胫骨截骨面相对于胫骨长轴的斜率对胫骨扭转测量没有影响。最后，他们得出结论，在关节面以下的截骨面中，以髁间后轴而非胫骨横轴为参考测量的胫骨扭转没有显著差异。
