目的探究螺旋CT重建在踝关节 骨折诊断及治疗中的应用效果。方法 回 顾性分析88例踝关节骨折患者临床资料， 所有患者手术前后均接受螺旋CT重建扫描 检查，获取轴位图像与三维重建图像，根 据Lauge-Hansen踝关节骨折分型标准进行 分类，以手术所见为“金标准”，比较术 前两种影像对踝关节骨折分型鉴别诊断准 确性差异，分析术后两种影像对手术复位 与内固定置入质量评估结果异同。结果 螺旋CT三维重建图像对踝关节骨折分型鉴 别诊断准确率为97.73%(86/88)，明显高 于轴位图像的88.64%(78/88)(P＜0.05)； 三维重建图像评估踝关节骨折复位、内固 定置入质量为非解剖复位及置入不满意率 均明显高于轴位图像(P均＜0.05)。结论 螺旋CT重建可通过提供直观且全面的诊断 与治疗信息，为临床治疗决策制定及预后 评估提供可靠依据。

Objective To explore the effects of spiral CT reconstruction in the diagnosis and treatment of ankle fracture. Methods The clinical data of 88 patients with ankle fractures were retrospectively analyzed. All patients were given spiral CT reconstruction scan before and after operation, and axial images and 3d reconstruction images were obtained, and they were classified according to Lauge-Hansen ankle fracture classification criteria, and surgical findings were as "gold standard". The accuracy of two images in differential diagnosis of ankle fracture classification was compared before operation, and the surgical reduction and internal fixation quality evaluation of two images after operation were analyzed. Results The diagnostic accuracy of ankle fracture classification by spiral CT 3d reconstruction images was significantly higher than that by axis images [97.73% (86/88) vs 88.64% (78/88)] (P<0.05). The cases of non-anatomical reduction and unsatisfactory placement in ankle fracture reduction and internal fixation quality by 3d reconstruction images were significantly higher than those by axial images (all P<0.05). Conclusion Spiral CT reconstruction can provide a reliable basis for clinical treatment decision-making and prognosis evaluation by providing intuitive and comprehensive diagnosis and treatment information.