Abstract
ObjectivesTo summarize the clinical features of pediatric femoral neck fractures and analyze the risk factors for avascular necrosis of the femoral head. MethodsA retrospective analysis of the case data of pediatric femoral neck fractures treated in our hospital from January 2010 to December 2022, including gender, age, fracture type, causative factors, and surgical details. The occurrence of avascular necrosis of the femoral head was recorded and risk factors were analyzed. ResultsFrom January 2010 to December 2022, a total of 45 cases of femoral neck fractures were treated in our hospital with a median age at onset of 93 months (IQR=81) and a median time from injury to surgery of 96 hours (IQR=46). Closed reduction was performed in 36 cases, while open reduction was performed in 9 cases. Avascular necrosis of the femoral head occurred in 29 cases postoperatively, while it did not occur in 16 cases. Increased time from injury to surgery and greater degree of fracture displacement were independent risk factors for avascular necrosis of the femoral head. The risk of avascular necrosis in Garden IV type femoral neck fractures was significantly higher than in Garden II and III type patients. An injury-to-surgery time exceeding 82.5 hours was identified as a critical threshold for the development of avascular necrosis of the femoral head. ConclusionPediatric femoral neck fractures have a low incidence rate and are mostly caused by high-energy trauma, often resulting in severe injuries. Therefore, actively maintaining stable vital signs and properly managing associated injuries, timely surgical intervention for femoral neck fractures, achieving good reduction and fixation of displaced fractures are crucial in the treatment of pediatric femoral neck fractures.
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