Distal radius fractures are very common. The most common cause of a distal radius fracture is a fall onto an outstretched arm. The treatment options depend on the nature of the fracture, your age and activity level, and the surgeon's personal preferences. If the broken bone is in a good position, a plaster cast may be applied until the bone heals. If the position of the bone is so misaligned that it cannot be corrected in a cast or it has the potential of interfering with the future functioning of your arm, surgery may be required.