Background: Pediatric long-bone physeal fractures can lead to growth deformities. Previous studies have reported that physeal fractures make up 18–30% of total fractures. This study aimed to characterize physeal fractures with respect to sex, age, anatomic location, and Salter–Harris (SH) classification from a current multicenter national database. Methods: A retrospective cohort study was performed using the 2016 United States National Trauma Data Bank (NTDB). Patients ≤ 18 years of age with a fracture of the humerus, radius, ulna, femur, tibia, or fibula were included. Results: The NTDB captured 132,018 patients and 58,015 total fractures. Physeal fractures made up 5.7% (3291) of all long-bone fractures, with males accounting for 71.0% (2338). Lower extremity physeal injuries comprised 58.6% (1929) of all physeal fractures. The most common site of physeal injury was the tibia comprising 31.8% (1047), 73.9% (774) of which were distal tibia fractures. Physeal fractures were greatest at 11 years of age for females and 14 years of age for males. Most fractures were SH Type II fractures. Discussion and Conclusions: Our analysis indicates that 5.7% of pediatric long-bone fractures involved the physis, with the distal tibia being the most common. These findings suggest a lower incidence of physeal fractures than previous studies and warrant further investigation.
Introduction:Childhood fractures involving the physis potentially result in premature physeal closure that can lead to growth disturbances. Growth disturbances are challenging to treat with associated complications. Current literature focusing on physeal injuries to lower extremity long bones and risk factors for growth disturbance development is limited. The purpose of this study was to provide a review of growth disturbances among proximal tibial, distal tibial, and distal femoral physeal fractures.Methods:Data were retrospectively collected from patients undergoing fracture treatment at a level I pediatric trauma center between 2008 and 2018. The study was limited to patients 0.5 to 18.9 years with a tibial or distal femoral physeal fracture, injury radiograph, and appropriate follow-up for determination of fracture healing. The cumulative incidence of clinically significant growth disturbance (CSGD) (a growth disturbance requiring subsequent physeal bar resection, osteotomy, and/or epiphysiodesis) was estimated, and descriptive statistics were used to summarize demographics and clinical characteristics among patients with and without CSGD.Results:A total of 1,585 patients met the inclusion criteria. The incidence of CSGD was 5.0% (95% confidence interval, 3.8% to 6.6%). All cases of growth disturbance occurred within 2 years of initial injury. The risk of CSGD peaked at 10.2 years for males and 9.1 years for females. Complex fractures that required surgical treatment, distal femoral and proximal tibial fractures, age, and initial treatment at an outside hospital were significantly associated with an increased risk of a CSGD.Discussion:All CSGDs occurred within 2 years of injury, indicating that these injuries should be followed for a period of at least 2 years. Patients with distal femoral or proximal tibial physeal fractures that undergo surgical treatment are at highest risk for developing a CSGD.Level of evidence:Level III Retrospective Cohort Study.
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