[Functional intramedullary osteosynthesis of the femur neck with a bundle of nails (biomechanical, anatomo-morphologic and clinical substantiation)].

The authors prove by their biomechanical and anatomomorphological investigation that osteosynthesis with a three-blade nail is traumatic, and that it is little traumatic when performed with a bundle of rods (6 rods 1.8 mm in diameter and 6-10 rods 1 mm in diameter) which are dispersely introduced through the femoral neck diameter and that it is rigid enough for functional management of the patients during the postoperative period. 37 patients were operated. The support and movement function of the extremity was restored on the average 176 +/- 25 days and the consolidation took place 217 +/- 60 days after the operation. There were no cases of non-consolidation, false joints, osteomyelites, arthrites and postoperative mortality. There was 1 case of aseptic necrosis of the femoral head.