MODULAR SIDE DEVICE WITH AN INTRAMEDULLARY NAIL FOR GUIDING A BONE DURING ITS LENGTHENING

摘要

The improvement relates to a modular side device with an intramedullary nail for guiding a bone, especially a femur or a tibia, in a method for its lengthening, wherein the device is basically comprised of an external lengthening member (1) extending along the external side of a limb parallel to a bone (2) foreseen for lengthening, wherein each end of the member (1) is provided with a respective clamp (3), into which two respective rod-screws (4) with a counter nut are fastened transversely to the longitudinal axis of the clamp (3); and of an intramedullary nail (6) arranged in a canal (5) of the interrupted bone (2). The improvement of the device is formed in a way that a connecting member (7) is arranged on the bone (2) at the site foreseen for connecting with the proximal clamp (3), said member (7) further including two threaded boreholes (8) foreseen to receive two rod-screws (4) and also including through boreholes (9) arranged in a distance from the threaded boreholes (8) and intended to receive bone screws (10), wherein between the connecting member (7) and the joint-proximal section of the bone (2) an adjusting member (11) is arranged which guarantees that the connecting member (7) lies in parallel with the lengthening element or perpendicularly to the rod-screws (4) regardless of the irregular conical shape of the bone (2).