Background: Accurate placement of cannulated screws is the key to stable fixation of the femoral neck fracture. A novel device was developed to improve the accuracy of screw placement.Methods: 20 synthetic femoral bones were divided into conventional technique group and the experimental group. Three Kirschner wire were inserted into the femoral neck fracture by conventional technique or by the simple guide device. The operative time, total drilling times and fluoroscopic frequency were evaluated.Results: By using the guide device, the fluoroscopy and operation time of the experimental group were shorter that of the conventional method. The total drilling times with the simple guide device were significantly lower than the conventional technique group.Conclusions: This device can help trauma surgeons shorten the surgical time and reduce radiation exposure time. The use of this guide device can make screw fixation for femoral neck fracture easier.
Background: To investigate effect of postoperative anti-rotation on the union of intracapsular displaced femoral neck fracture treated with three cannulated screws.Methods: A retrospective analysis was performed on all the intracapsular femoral neck fractures treated in the department of orthopedics of the second Hospital of Shanxi Medical University from July 2015 to December 2018. Fractures of femoral neck were reduced and fixed with three cannulated screws. The patients who wore anti-rotation shoes in the affected side were kept at bed rest for 10-12 weeks after surgery. The results were analyzed.Results: A total of 135 patients were included in the analysis. Six patients (4.4%) were not united. There were 12 cases of avascular necrosis (9.3%). No wound infections, screw breakages was found.Conclusion: Anti-rotation after surgery can significantly reduce the rate of femoral neck fracture nonunion, but not significantly improve the femoral head necrosis
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