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目的探讨齿状突骨折的CT三维重建分型及临床意义。方法2000年9月～2004年6月,对32例寰枢椎损伤患者均行X线检查、螺旋CT薄层扫描及三维重建检查,评价CT三维重建分型及临床意义。结果X线片检查对齿状突骨折的漏诊率为28.13%(9/32),CT平扫漏诊率为6.25%(2/32),CT三维重建无1例漏诊。结论X线片对齿状突骨折易造成漏诊或诊断不确切。CT三维重建能直观、精确地显示病变的立体形态及各解剖结构的空间关系,提供分型依据,对治疗具有指导作用。
Objective To investigate the CT three-dimensional reconstruction of odontoid fracture and its clinical significance. Methods From September 2000 to June 2004, 32 cases of atlantoaxial injury were examined by X-ray, spiral CT and three-dimensional reconstruction to evaluate the classification and clinical significance of CT three-dimensional reconstruction. Results The rate of misdiagnosis of odontoid fracture was 28.13% (9/32). The rate of misdiagnosis of CT scan was 6.25% (2/32). There was no misdiagnosis in 1 case of CT three - dimensional reconstruction. Conclusion X-ray can easily cause misdiagnosis or diagnosis of odontoid fracture. CT three-dimensional reconstruction can intuitively and accurately display the three-dimensional morphology of the lesion and the spatial relationship between the anatomical structures to provide the basis for typing, the treatment has a guiding role.