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本文对１９８５年１０月至１９９４年３月，作者对所办理的９８８例案件中的３２例四肢管状骨扭转骨折的形态学进行了分析。结果表明：其骨折形态有７２％呈螺旋形，２８％呈斜形；骨折角平均为２６．８°，与４５°的传统标准差异显著。作者认为：影响骨折角的原因很多，除与骨骼成份、结构和复合加载等因素有关外，骨骼组织并不服从虎克力学定律，是造成显著差异的主要因素，因而认为骨折角不是恒定的常数而是变量，４５°的传统标准需要在实践中进一步验证。另外，作者对管状骨扭转骨折的生物力学也进行了探讨。
In this paper, from October 1985 to March 1994, the authors analyzed the morphological features of 32 cases of tubular torso fractures of the extremities in 988 cases. The results showed that 72% of the fractures were spiral and 28% were oblique. The average fracture angle was 26.8 °, which was significantly different from the traditional standard of 45 °. The author believes that there are many reasons that affect the fracture angle. Except for the factors such as bone composition, structure and composite loading, the skeletal tissues do not obey the laws of Hooke’s mechanics and are the main factors that cause significant differences. Therefore, the fracture angle is not a constant But a variable, the traditional 45 ° standard needs to be further verified in practice. In addition, the authors also discussed the biomechanics of tubular bone torsion fractures.