The technique of radio-radial monobloc-fixation with the small AO external
fixator device has been applied to 17 consecutive Colles' fractures. The fr
acture types were mainly A3 and C2, according to the AO classification. We
found this technique to be easy and quick in application and stable in fixa
tion. Direct, precise and atraumatic reduction can be achieved by using the
distal pins as joy-sticks. Furthermore, disimpaction of the fracture to re
gain length is possible without bone grafting. Normal carpal mobility and l
oad transfer is preserved during fracture healing and the injured hand can
be used in daily life with certain restrictions. To prevent pin-track infec
tions, early mobilization of the wrist should be avoided, We recommend this
technique in the treatment of comminuted AO-type A3 fractures of the dista
l radius and in certain type C2 cases.