[Interlocking medullary nailing. Indications, technic with a new guiding instrument. Analysis of the 1st 50 operations].

After a review of Küntsher's intramedullary nailing, the author resumed the informations about the interlocking medullary nail and its technique. A new device, as a guide instrument for easier application of the transverse bolts was constructed on the basis of authors concept. Using the new technique and guide instrument X-ray television controll is not necessary for placing the bolts in their right places through a small incision. The time of operation and the risk of infection was also diminished by the new technique. The indications for the interlocking medullary nailing have been completed by the author with the pathologic fractures. The first 50 cases, treated by the new technique of the interlocking medullary nailing are analysed and a few cases are reported in detail. Good results have been obtained as regards both the bone union and the functional results. Based on the good results the new technique of the interlocking medullary nailing is recommended by the author.