Walker R H, Burton D S
J Trauma. 1982 Mar;22(3):227-34. doi: 10.1097/00005373-198203000-00009.
Computerized tomography (CT) can be a useful adjunct to conventional radiography in assessment of acetabular fractures and fracture-dislocations of the hip. Owing to the complex bony architecture of the acetabulum, CT affords better definition of fracture patterns in this region than roentgenography, including special views and tomography. The cross-sectional views of CT offer improved definition of the characteristics of a complex acetabular fracture, including integrity of the weight-bearing dome, congruity of joint surfaces, degree of comminution, size and spatial relationship of fragments, and presence of intra-articular fragments. Computerized reconstruction of sagittal and coronal views at desired levels duplicates polytomography and renders standard tomography unnecessary. Radiation exposure required for a CT examination of the pelvis is equal to or less than that required for a polytomography study. CT can be utilized as a valuable diagnostic aid in the assessment of selected acetabular fractures and fracture-dislocations of the hip, providing often otherwise unobtainable information to the choice of treatment for these difficult injuries.
计算机断层扫描（CT）在评估髋臼骨折和髋关节骨折脱位时，可作为传统放射照相的有用辅助手段。由于髋臼复杂的骨质结构，CT比X线摄影能更好地显示该区域的骨折类型，包括特殊视图和断层扫描。CT的横断面视图能更好地显示复杂髋臼骨折的特征，包括负重穹顶的完整性、关节面的一致性、粉碎程度、碎片的大小和空间关系以及关节内碎片的存在情况。在所需层面进行矢状面和冠状面的计算机重建可替代多层面体层摄影，使标准体层摄影不再必要。骨盆CT检查所需的辐射剂量等于或低于多层面体层摄影研究所需的剂量。CT可作为评估特定髋臼骨折和髋关节骨折脱位的有价值的诊断辅助手段，为这些复杂损伤的治疗选择提供通常难以获得的信息。
