抄録
We report a rare case of isolated dislocation fracture of the trapezoid. A 41-year-old man who is a harbor worker suffered from right hand injury by traffic accident when holding a steering wheel tightly at the time of impact. Roentgenograms and CT revealed dislocation fracture of the trapezoid. Six days after accident, open reduction with ligament repair and temporary fixation with two K-wires were performed. One year after operation, the patient had no tenderness over the trapezoid. His right wrist motion was the same as the left wrist and his grip strength recoverd to 38kg (left: 53kg). Roentgenograms taken one year after surgery showed no dislocation of the traezoid, and MRI showed no evidence of avascular necrosis. The patient was able to return to his previous job.
