CT三维重建在肘关节损伤中的应用价值

目的探讨在肘关节骨折中多层螺旋CT的应用价值，并对不同重组方法的应用价值进行分析。方法13例肘关节损伤患者全部行薄层螺旋CT横断面扫描，扫描完成后行三维重建。分析比较几种重建图像对肘关节骨折及脱位的显示效果。结果13例（17处）肘关节创伤包括肱骨内、外髁、髁间骨折、鹰嘴、桡骨小头部位的骨折。其中3处X线平片阴性。2例X线片仅可疑骨折，2例仅显示单处骨折，MPR重建影像不仅明确骨折诊断，而且进一步多角度地显示骨折线的走行及关节面受累程度。曲面重组技术则排除了肘被动屈曲的影响，更直观显示肘关节的损伤情况。结论多层螺旋CT对肘关节骨折、脱位显示清楚。特别是对复杂骨折的显示，具有X线平片所无法比拟的优势，为临床明确诊断、确定治疗方案提供可靠而直观的信息。

Application of CT three-dimensional reconstruction in elbow injury

Objective To investigate the application of multi-slice spiral CT in fracture of elbow, and to study the value of different methods of the reconstruction. Methods Thin line cross-section spiral CT scan was carried out in 13 cases with elbow injury, three-dimensional reconstruction was completed later. Several reconstructed image quality to display f the elbow fracture and dislocation were analyzed and compared. Results 13 cases （17） elbow trauma included humeral media epicondyle fracture, humeral external epicondyle fracture, intercondylar fracture, olecranal fracture and radial head fracture. Among them, X-ray film showed negative in three sites, showed suspect fractures in 2 cases, and only showed single fracture in 2 cases. MPR reconstruction image could not only identify the diagnosis of fracture, but also provide further multi-angle display on fracture line and the extent of articular surface involvement. Surface reconstruction technology could exclude the impact of passive elbow flexion and display elbow injury more intuitively. Conclusion The elbow fracture dislocation could be showed clearly in multi-slice spiral CT, especially for complex fractures, with unmatched advantages compared to X-ray for clinical diagnosis and treatment determination.