CT对髋关节与膝关节隐匿性骨折的诊断价值

目的 评价CT对髋、膝关节隐匿性骨折的诊断价值。方法 30例临床上疑有髋、膝关节隐匿性骨折患均经CT检查。对全部患者的CT表现进行了回顾性分析，并与X线平片相对照。结果 30例患者X线平片检查均为阴性，而CT横断面图像均明确地显示了骨折。30例中，髋关节骨折14例（髋臼骨折8例，股骨头骨折4例，股骨颈骨折2例），膝关节骨折16例（胫骨平台骨折8例，胫骨髁间隆起基底部骨折3例，股骨外髁骨折2例，股骨内髁骨折1例，髌骨骨折2例）。结论 CT对髋、膝关节隐匿性骨折的诊断具有很高的准确性，且明显优于X线平片。当临床怀疑骨折而X线未显示或显示不清者，应进行CT检查。

Diagnostic value of CT for occult fractures of hip-knee joints

Objective To evaluate the capability of CT for diagnos in g occult fractures of hip-knee joints.Methods Thirty patients with clinically suspected occult fractures of hip-knee joints underwent CT scans.CT findings i n all patients were analyzed retrospectively and compared with X-ray plain fil ms.Results In all 30 patients ,conventional radiography failed to demonstrate in juries whereas the fractures of hip-knee joints were clearly visualized on tra nsverse plane CT images.Among 30 cases,the occult fractures of hip joints were f ound in 14 cases (8 acetabular,4 femoral head,2 femoral neck),those of knee join ts in 16 (8 tibial plateau,3 intercondylar processes of tibia,2 external condyle of femur,1 internal condyle of femur,and 2 patella).Conclusion CT has high accu racy in the diagnosis of occult fracture of hip-knee joints and is significant ly superior to X- ray plain film.CT scanning should be the first selected means of diagnosing occult fractres of hip-knee joints when clinically suspect frac ture but conventional radiography can not detect.