Rosenthall L, Hill R O, Chuang S
Radiology. 1976 Jun;119(3):637. doi: 10.1148/119.3.637.
The utility of 99mTc-phosphate imaging of fractured bones adjacent to joints soon after injury is examined. Joints usually respond to trauma by a generalized increased regional concentration of the radiopharmaceutical; but with careful attention to technique, a superimposed focal deposition due to the fractured bone can be seen. Fractures which were initially indefinite or which seemed normal at radiography were revealed as early as 7 hours after injury. In our experience, failure to show a focal concentration beyond 3 days excludes a fracture. However, a focal concentration need not necessarily represent a gross fracture; a ligamentous avulsion of a bone chip and/or periosteum could yield the same picture and not be disclosed by radiography. Radionuclide imaging of joint fractures is a useful adjunct to clinical assessment.
研究了99mTc-磷酸盐成像在损伤后不久对关节附近骨折的应用价值。关节通常会因创伤而出现放射性药物区域浓度普遍升高；但通过仔细注意技术操作，可以看到由于骨折导致的叠加性局灶性沉积。最初不明确或在X线摄影时看似正常的骨折在损伤后7小时即可显示出来。根据我们的经验，伤后3天以上未显示局灶性浓聚可排除骨折。然而，局灶性浓聚不一定代表明显骨折；骨碎片和/或骨膜的韧带撕脱也可能产生相同影像，而X线摄影无法显示。关节骨折的放射性核素成像对临床评估是一种有用的辅助手段。
