[Fracture of the trapezoid bone].

Fractures of the trapezoid body and the trapezoid ridge are rare. It is important to be aware of both diagnosis, because the trapezoid body fractures may cause persistent subluxation and degenerative arthritis in the trapezio-metacarpal joint with pain and restricted movements, and the trapezoid ridge fractures may cause chronic pain and disturbed function of the median nerve. If standard x-rays are found to be normal in a patient with symptoms of trapezoid body or ridge fracture, special oblique views or carpal tunnel views should be undertaken.