螺旋CT三维成像对髋臼骨折的诊断价值

目的探讨螺旋CT三维成像埘髋F1骨折的诊断价值。方法州顾性分析68例患者共75侧髋臼骨折的X线平片、轴位cT平扫和CT三维成像资料．比较3种检查方法检测骨折线和关节内骨碎片的能力和在Letournel—Judet分型中的价值。各组数据进行X^2检验。结果对髋臼骨折线的检出，轴位CT组（134处，97．1％）和三维CT组（138处，100％）优于x线组（99处，71．7％）；对于骨折分型的价值，三维CT组（75处，100％）〉轴位CT组（69处，92．0％）〉X线组（48处，64．0％）；经X^2检验，差异具有统计学意义。34侧髋臼骨折合并关节内骨碎片，X线组检出19例，轴位CT组和三维CT组无漏诊。结论螺旋CT三维成像能立体直观地观察髋臼骨折并准确进行分型．从而指导临床治疗．

The diagnosis value of three-dimensional reconstruction with spiral CT in acetabular fractures

Objective To evaluate the diagnosis value of three-dimensional reconstruction with spiral CT in acetabular fi＇actures. Methods The images of 75 cases of acetabular fractures in 68 patients, including X-ray, axial CT and 3D reeonstruetien, were studied retrospectively. The ability to detect the fracture line and the intra-articular bone fi＇agments, and the value in typing, were statistically analyzed. Results In detecting the fracture line, the axial CT （134, 97.1%） and the 3D reconstructicn（138, 100%） is superior to the X-ray（99, 71.7%）. The value in fi＇acture typing, whieh aceording to Letoumel-Judet elassifieation, the 3D reeonstruction（75, 100%） is better than the axial（69, 92.0%）, the axial CT is better than the X-ray（48, 64.0%）, After ehi-square test, the difference was statistically significant, 34 cases with intra-articular bone fragments, were detected by axial CT and 3D reconstruction, while 19 cases were detected by X-ray. Conclusion Three-dimensional reconstruction with spiral CT can intuitively observe the aeetabular liaeture and define the type of fracture accurately, and guide clinical treatmenl.