Use of a Smartphone Application for Fracture Angulation Measurement

Özet

Introduction: After reduction and casting of pediatric long bone fractures, angulation of the fractured segments is measured to determine if the reduction is acceptable. The aim of the present study was to assess the reliability of a smartphone application (iPinPoint) for measurement of pediatric forearm diaphyseal fracture angulations with reference to picture archive and communication systems (PACS) software measurements. Methods: Anteroposterior and lateral forearm radiographs of 30 patients were retrospectively analyzed. Four observers measured the radius fracture angulations using the tools in the PACS software and a smartphone application. The inter- and intraobserver reliability was measured using intraclass correlation coefficients (ICCs). Results: Very good interobserver reliability was seen among the four observers measuring the angulations on anteroposterior and lateral radiographs using the PACS software (ICC 0.962 and 0.974, respectively) and iPinPoint (ICC 0.933 and 0.959, respectively). Intraobserver reliability was also very good for both techniques for all observers (ICC >0.9 for all observers). Discussion and Conclusion: Both techniques are reliable in measuring fracture angulations. The iPinPoint application may represent a useful alternative to digital PACS measurements when measuring tools are not available.