| Summary: | This study aims to compare the diagnostic accuracy of the ultrasound and radiography examinations in detecting the greenstick fracture with different angulations on pediatric distal radius using phantoms. Ten phantoms consisting of chicken leg bones and gelatin were prepared to represent the pediatric distal radius. There were two sets of phantoms, each containing two normal chicken leg bones and three chicken leg bones with different angulations of greenstick fracture at 10°, 20° and 30°. Three emergency physicians then evaluated all phantoms through ultrasound and radiographic images to diagnose the presence of greenstick fractures and determine the angulations if any. Based on the result, ultrasound has a high specificity,100% and low sensitivity, 55.6% with a positive predictive value, 100% and a negative predictive value, 60%, while radiography has low specificity, 50.0% and sensitivity, 44.4%, with a positive predictive value, 50% and negative predictive value, 37%. From this study, ultrasound is more effective in detecting greenstick fracture with different angulations on the distal radius as compared to radiography. © 2023 Author(s).
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