目的 探讨斜矢状位扫描在前交叉韧带损伤中的应用价值.方法 本组经关节镜证实的交叉韧带损伤患者34均应用标准矢状位与10度斜矢状位(据文献推荐)扫描,对两种扫描方式根据关节镜证实为部分撕裂、断裂两种不同情况进行统计学分析.结果 部分撕裂伤,标准矢状位阳性率为60%(13/25),斜矢状位为76%19/25),并分别有1例假阳性,差异有统计学意义(P<0.05),在前交叉韧带断裂两者阳性率相似.结论 在单纯前交叉韧带撕裂伤时,斜矢状位能较完整显示前交叉韧带的形态及损伤情况,在前交叉韧带断裂或合并其它损伤(如粉碎性骨折时)其显示效果无明显差异,半月板损伤时,斜矢状位显示变形,所以其具有一定局限性,不能取代标准矢状位作为常规序列,可以根据情况作为备选序列.%Qbjective To elevate the application with the tilted sagittal MR scanning in diagnosis of ACL injury . Methods A retrospective view of 34 consecutive MRI examinations for ACL injury which was confirmed by arthroscopy. Everyone was scaned by routine sagittal position and tilted sagittal position respectively. The results was classfied as partial interruption and total interruption, then analyzed statistically by comparing with arthroscopic finding. Results The displaying rate of partial interrupition with routine sagtittal position was 60％, and 76％ with tilted sagittle position and has 1 false positive case respectively, and the displaying rate in the other situation was similar. Conclusion Only the displaying rate in partial interruption with tilted sagittal postion was significantly higher (P ＜ 0.05 ), It's displaying rate was similar in total interruption and complex injury, and we found that meniscus' shape always changed by using tilted sagittal position, so we suggest tilted sagittal position will not used as a routine position,and we could choose it when we doubt someone has partial ACL interruption.
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