Evaluating the change in epidemiology and clinical presentations in paediatric hip fracture: Analysis of a local trauma centre

Introduction Paediatric hip fracture is rare but the consequences can be devastating. Retrospective analysis was performed in a local trauma centre. Methods This study retrospectively reviewed 18 paediatrics patients with hip fracture from 2000 to 2021 in a territory hospital in Hong Kong. Serial hip images and clinical symptoms were reviewed. Result Significant (44.4%) amount of patients had injury during sports. An ambulatory status on presentation (16.7%) had to be highlighted. Despite a higher incidence of avascular necrosis (44%) reported, only two patients required salvage operation. The mean follow-up time was 77 months. Conclusion A shift in mechanism of injury and presentation from historical local data in 1986 to recent 20 years were identified. The mechanism of injury shifted from prior road traffic accident to sports injury. Preserved mobility after hip fracture was common, reminding medical practitioner to stay vigilant for early diagnosis. Higher avascular necrosis rate was reported but limited salvage operations were noted. Larger cohort with longer follow-up time would be needed for analysis of risk factors associated with avascular necrosis.