Liao CY, Tan TL, Lu YD, et al. - This study was attempted to evaluate the impact of dipyridamole-thallium scanning (DTS) on the rates of 90-day cardiac complications and 1-year mortality in patients with a femoral neck fracture treated with hemiarthroplasty. Researchers included a total of 844 consecutive patients who had undergone cemented or cementless hemiarthroplasty from the database of a single level-one medical center between 2008 and 2015 (113 patients (13%) had undergone DTS prior to surgery, and 731 patients (87%) did not). They applied a propensity score-matched cohort to decrease recruitment bias in a 1:3 ratio of DTS group to control group, and multivariate logistic regression was conducted to control confounding variables. In patients with a femoral neck fracture undergoing hemiarthroplasty, preoperative DTS was not correlated with reductions in the rates of 90-day cardiac complications or 1-year mortality. For DTS, the necessity should be re-evaluated in elderly patients with femoral neck fractures, given that this increases the length of the delay until surgery.