Abstract:Purpose: To investigate the efficacy of valgus osteotomy for the treatment of delayed femoral neck fractures in children with Pauwels III. Methods:A retrospective study of 3 patients with Pauwels III delayed treatment of femoral neck fractures treated in our hospital from 2016 to the present, the general data of the children, preoperative and postoperative imaging data were collected. All the surgical methods were undergoing valgus osteotomy, LCP-PHP fixation, postoperative pelvic AP film to evaluate fracture healing, and hip Harris score to evaluate hip function. Results:There were 1 males and 2 female, with an average age of 12 years old. The cause of the injury was car accident and bicycle fall. The average time of injury was70 days, the average length of lower limbs discrepancy was 1.3cm, and the average preoperative Pauwels angle was 82.3°, and the follow-up was 20-23 months. The average follow-up was 21.6 months. The pelvic X-ray showed good fracture healing. The hip Harris score averaged 89 points and the hip function was good. Conclusion: The valgus osteotomy is a kind of treatment worth recommending for the treatment of delay femoral neck fracture.