Objective to predict the stress distribution of atlas under different pre-trauma postures by finite element method, and to deduce the sites of atlas fracture accordingly.
目的采用有限元方法，预测寰椎在不同位置条件下寰椎应力的分布，并以此推断可能出现的寰椎骨折类型。
Objective. To investigate the biomechanical characteristics of the human atlas and to describe the influence of different speeds of force impact on the fracture types.
目的；为了研究人类寰椎的生物力学特性和描述不同速度力量作用于骨折类型的影响。
To discuss the treatment and diagnosis of the fracture of the atlas.
目的探讨寰椎骨折的诊断、治疗经验。
To investigate the biomechanical characteristics of the human atlas and to describe the influence of different speeds of force impact on the fracture types.
目的；为了研究人类寰椎的生物力学特性和描述不同速度力量作用于骨折类型的影响。
Results Abnormal atlas rotation has been found in these cases, with 5 cases of simple luxation and 5 involoing atlas or axoid bone fracture;
结果寰椎异常旋转，其中，单纯旋转脱位5例，伴寰椎或枢椎骨折5 例；
Results Abnormal atlas rotation has been found in these cases, with 5 cases of simple luxation and 5 involoing atlas or axoid bone fracture;
结果寰椎异常旋转，其中，单纯旋转脱位5例，伴寰椎或枢椎骨折5 例；
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