目的研究MSCT3D技术对于踝关 节骨折Lauge-Hansen分型的诊断准确性及 其适用范围。方法 收集2017年 1月-2017 年12月间我院踝关节骨折患者300例，所 有患者X线及CT诊断均按Lauge-Hansen分 型，并将结果与术中所见进行对照，对 Lauge-Hansen分型的准确性及适用性进行 分析。将CT诊断分型与术中分型对照，判 断CT3D技术的准确性。结果 MSCT3D技术 对于踝关节骨折的分型准确性较X线高， 二者差异有统计学意义(χ2 =14.063， P<0.01)。Lauge-Hansen分型的适用率 约为96.37%，对Lauge-Hansen分型适用 患者的临床手术证实其分型的准确率为 96.89%。Lauge-Hansen分型缺陷：在直接 或垂直暴力以及高能创伤引起的踝关节骨 折中，Lauge-Hansen分型有其局限性。结 论 CT3D技术与Lauge-Hansen分型结合， 对于踝关节骨折的诊断准确性较高，且 CT3D技术对于骨折的形态表现和隐匿性骨 折发现方面优势明显。结合Lauge-Hansen 分型与CT3D技术对于踝关节损伤的治疗方 案制定提供准确的参考。

Objective To study the diagnostic accuracy of MSCT3D technique for type Lauge-Hansen fractures of ankle joint and its scope of application. Methods From January 2017 to December 2017 in our hospital 300 cases of ankle joint fracture patients, CT diagnosis of all patients were divided by Lauge-Hansen, and the results were compared with the intraoperative findings, the accuracy and applicability of Lauge-Hansen type carries on the analysis. The CT diagnostic typing typing and operation control, to determine the accuracy of CT3S technique. Results MSCT3D technology for high accuracy classification of ankle fractures, there was significant difference between the two groups (χ2 =14.063, P<0.01). Lauge-Hansen type rate is about 96.37%, the accuracy of clinical surgery Lauge-Hansen typing for patients with confirmed the type for 96.89%. Lauge-Hansen type defects: in direct violence, vertical violence and high trauma caused by ankle fracture Lauge-Hansen Type has its limitations. Conclusion CT3D and LaugeHansen type with high diagnostic accuracy for ankle fracture, and CT3D technology for the form and occult fracture found obvious advantages. Combining Lauge-Hansen and CT3D technology for the treatment of ankle joint injury to provide accurate reference.