摘要
目的:利用CT三维重建技术描述股骨颈扭转角与前倾角,显示二者区别并测量数据。方法:2010年3月至2010年10月,采用CT重建扫描30例健康成人志愿者股骨结构,男15例,女15例;年龄25～65岁,平均(43.66±7.57)岁。进行图像后处理显示股骨颈扭转角及前倾角,用"圆心法"测量扭转角,直接测量股骨颈前倾角。结果:股骨颈前倾角是股骨头颈中心轴线与股骨冠状面的夹角,测量结果为(13.326±6.085)°;扭转角是股骨颈截面的长轴面与股骨冠状面的夹角,测量结果为(31.335±2.079)°。两角度左、右侧比较差异无统计学意义。结论:股骨颈前倾角与扭转角是股骨上段完全不同的两个角度参数,前倾角是线与面的夹角,角尖朝向外下,扭转角是面与面的夹角,角尖朝向后下。
Objective：To discern the differences between femoral neck anteversion（FNA） and torsion angle through 3D CT reconstruction. Methods：From March 2010 to October 2010,30 healthy adult volunteers＇ femur were reconstructed by 3D CT,included 15 males and 15 females with an average age of （43.66±7.57） years old ranging from 25 to 65 years. Display the FNA and the torsion angle by image post-processing,measuring torsion angle by＂Center way＂and direct measurement of FNA. Results：FNA was the angle between the axle wire of femoral neck and the shape face of femoral,the angle were（13.326±6.085）°. Torsion angle was the angle between the macropinacoid of cross section of femoral neck and the shape face of femoral,the angle were（31.335±2.079）°. There was no significant difference in left and right femur. Conclusion：FNA is different from torsion angle. FNA is the angle between the line and the surface with the sharp angle towards the lower outside. The torsion angle is the angle between the two surfaces with the sharp angle towards the lower back.
出处
《中国骨伤》
CAS
2012年第10期831-833,共3页
China Journal of Orthopaedics and Traumatology
关键词
股骨颈前倾角
股骨颈扭转角
体层摄影术
X线计算机
Femoral neck anteversion angle （FNA）
Femoral neck torsion angle
Tomography
X-ray Computed
