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目的:研究外斜位X线片上股骨距的影像特征,探讨外斜位片显示股骨距的临床意义。方法:用成人干燥股骨标本143根,进行外斜45°拍片,对股骨距影像进行分析测量。结果:外斜位和正位显示股骨距阳性率分别为86.5%和29.0%。股骨颈主要抗压力骨小梁总宽度由上向下递减,与股骨距相交于Ward三角下角,此区骨小梁稀疏。次级抗压力骨小梁与股骨距相连为一体。结论:股骨距与主要抗压力骨小梁交界处相对薄弱,是股骨颈骨折的好发部位。次级抗压力骨小梁即股骨距松质骨影像。外斜位X线片可以为临床上显示股骨距特征提供参考。
OBJECTIVE: To study the imaging features of femoral distance on external oblique X-ray and to explore the clinical significance of external oblique display of femoral distance. Methods: 143 adult femur specimens were taken obliquely and obliquely 45 ° to make an analysis of the femoral distance. Results: The positive rate of femoral distance was 86.5% and 29.0% respectively. The total width of the main anti-stress trabecular bone of the femoral neck decreased from top to bottom, intersecting with the femur at the lower corner of the Ward triangle, where trabecular bone is sparse. Secondary compression trabecular bone and femur away from the link as a whole. Conclusion: Femoral distance and the main anti-stress trabecular junction is relatively weak, is a common occurrence of femoral neck fractures. Secondary anti-stress trabecular bone that cancellous bone image. External oblique X-ray film can provide clinical reference for femoral distance characteristics.