• Faisal Al-Sani, Soni Prasad, Jyoti Panwar, Jennifer Stimec, Arash Khosroawshahi, Trent Mizzi, Mark Camp, Keith Colaco, Adam Kramer, and Kathy Boutis.
• Division of Pediatric Emergency Medicine, Department of Pediatrics, Royal University Hospital, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
• Acad Emerg Med. 2020 Feb 1; 27 (2): 128-138.

ObjectivesWe determined how often emergency physician pediatric musculoskeletal (MSK) radiograph interpretations were discordant to that of a radiologist and led to an adverse event (AE). We also established the variables independently associated with this outcome.MethodsThis prospective cohort study was conducted in an urban, tertiary care children's emergency department (ED). We enrolled children who presented to an ED with an extremity injury and received radiographs. ED physicians documented their radiograph interpretation, which was compared to a radiology reference standard. Patients received telephone follow-up and had institutional medical records reviewed in 3 weeks. An AE occurred if there were clinical sequelae and/or repeat health care visits due to a delay in correct radiograph interpretation.ResultsWe enrolled 2,302 children (mean [±SD] age = 9.0 [4.4] years; 1,288 (56.0%) male]. Of these, 180 (7.8%; 95% confidence interval = 6.8 to 9.0) ED physician discordant interpretations resulted in an AE. Specifically, there were no negative clinical outcomes; however, relative to cases diagnosed correctly at the index ED, patients whose fracture was not initially identified encountered 77.2% more subsequent ED visits, while those falsely diagnosed with a fracture experienced 41.5% additional orthopedic clinic visits. Odds of an ED discrepant interpretation was significantly higher if a physician's pretest probability of a fracture was ≤ 20% versus> 20% (adjusted odds ratio [aOR] = 1.6), patient's pain score was ≤ 2 versus> 2 (aOR = 1.6), and injury was located in a joint versus other location (aOR = 1.7).ConclusionsEmergency physician discordant pediatric MSK radiograph interpretations that resulted in an AE occurred with regular frequency in a pediatric ED setting. AEs were primarily an increase in subsequent health care visits. Importantly, a low clinical suspicion for a fracture or injury located in the joint were risk factors for ED physician discordant interpretations.© 2019 by the Society for Academic Emergency Medicine.

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