Results of postoperative anti-rotation on the intracapsular femoral neck fracture fixed with cannulated screws

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