The scaphoid fat stripe in the diagnosis of carpal trauma.

During a ten-year period scaphoid fracture was suggested in 541 wrists, but in 283 cases could not be confirmed at the initial radiographic examination. These cases were immobilized in plaster of Paris and examined clinically and radiologically 10 to 14 days later. A total of 274 additional radiographic examinations revealed 32 scaphoid fractures not initially recognized. Two fractures were at the retrospective analysis found to have been neglected. In the 249 cases where a fracture was never demonstrated, the immobilization and resulting sick leave were in retrospect considered not to have been indicated. In a retrospective analysis of case records and radiographic material including the configuration of the scaphoid fat stripe (SFS) at the initial radiographic examination the SFS was found to be useful in diagnosing scaphoid fractures. The use of the SFS in differential diagnosis would result in reduction of costs and inconvenience for patients without scaphoid fracture.