为评价膝关节X线片在诊断膝关节创伤中的价值,作者分析了60例由EUA(examination underanaesthetic)和关节镜检查证实的急性膝关节创伤的X线片并经关节抽吸证实有积液存在。所有病人从受伤到摄片平均时间3天(1～14天),每例均行前后位和垂直线束侧位膝关节X线摄影。膝关节积液的X线表现为髌上带(SPS)增宽和/或髌上隐窝底部脂肪垫分离。髌上带代表衬在髌上隐窝的双层滑 To assess the value of knee X-rays in the diagnosis of knee trauma, the authors analyzed 60 cases of acute knee trauma confirmed by EUA (examination underanaesthetic) and arthroscopy and confirmed fluid accumulation by joint aspiration exist. All patients from injury to the average time of 3 days (1 ~ 14 days), each case were anteroposterior and vertical alignment of the lateral knee X-ray. X-ray findings of knee joint effusion were enlargement of the suprapatellar band (SPS) and / or fat pad separation at the base of the suprapatellar recess. The suprapatellar band represents a double slip lining the suprapatellar crypt