[The cannulated osteo-support rod, a new device for the minimally invasive reduction of fractures].

We report a newly developed device for fracture reduction and the positioning of K-wires, especially the guide wires of cannulated screws. It is designed as a cannulated ball spike pusher whose tip and inlay consists of a K-wire fixed in the lumina of the device by a screw. Thus, in displaced fractures, the (guide) wire can be inserted into the bone from the point of reduction, simplifying the intra-operative technique especially in minimally invasive procedures. Additionally, severely displaced fracture fragments can be handled quite comfortably percutaneously by using this device with a "joy stick" technique. The first practical experience in cannulated screw and K-wire osteosyntheses using this device are reported here.