Abstract: An external fixation device for orthopedic use adapted to be used with the so-called ILIZAROV method including at least two hoops for a substantially cross-shaped attachment of pins, cross-pieces connecting the hoops in spaced relation, each cross-piece including a first end connected to one hoop and a second end connected to another hoop, a device for adjusting the length of the cross-pieces for putting under traction or compression, at least a bone fragment to which the cross-pieces connect respectively through the hoops and the pins, a first clamp device for clamping a first end of each pin, a second clamp device for clamping a second opposite end of each pin, the first clamp device and second clamp device are connected to the hoops diametrically, and a device for moving the first clamp device away from the second clamp device to tension the respective pins.