Fig. 2From: The Amsterdam wrist rules: the multicenter prospective derivation and external validation of a clinical decision rule for the use of radiography in acute wrist traumaA screen shot of the smart phone application that will be used during the implementation study. After entering the clinical findings, the application will calculate the probability of a distal radius fracture using the formula depicted in Table 1. If the probability of a distal radius fracture is <4 %, the Amsterdam Wrist Rules application will recommend no radiography. The application was built by ApplicationBuildersBack to article page