Aetiology
Fracture of the shaft of the other metacarpal bone is typically caused by a direct blow to the area, such as punching a wall, being in a motor vehicle accident, or having a fall with the hand outstretched.
Diagnosis
The diagnosis of a fracture of the shaft of the other metacarpal bone is usually made by a physical exam and X-ray. The X-ray will show the fracture line and any displacement of the bones.
Differential diagnosis
Fracture of the shaft of the other metacarpal bone should be distinguished from other bone injuries such as a fracture of the phalanges, wrist fracture, or dislocation of the metacarpophalangeal joint.
Treatment
Treatment for a fracture of the shaft of the other metacarpal bone includes immobilization of the finger in a splint or cast for 6-8 weeks. Surgery may be necessary for fractures that are displaced or for those with open wounds.
Prognosis
If a fracture of the shaft of the other metacarpal bone is treated properly, the prognosis is generally good. Full recovery may take up to several months, depending on the severity of the fracture.