This paper USES principal curvature, plane stress and structure filtering to evaluate the development of fracture at geology shape, mechanical and signal handle facet.
METHODS: Eighteen patients with a fracture of the anteromedial facet of the coronoid process were treated over a six-year period.
方法：18例发生尺骨冠突前内关节面骨折的患者经过6年以上的治疗。
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Conclusion:The incidence of vertebral artery injury after cervical transverse foramen fracture is quite high, particularly those associated with locked facet dislocation.