The RibScore is a radiographic score used to predict the pulmonary complications of pneumonia, respiratory failure, and tracheostomy in emergency department patients diagnosed with rib fractures on computed tomography (CT) imaging. It assigns 1 point each for: (1) six or more ribs fractures, (2) bilateral rib fractures, (3) flail chest, (4) three or more severely displaced fractures, (5) first rib fracture, or (6) one or more fractures in each of three anatomic areas of the rib (anterior, posterior, and lateral). In retrospective studies, higher RibScores were associated with increased risk of pulmonary complications with receiver operating characteristic areas under the curve of 0.71, 0.71, and 0.75, for pneumonia, respiratory failure and tracheostomy respectively. Additionally, a RibScore of 4 or more is more than 90% specific for the development of pulmonary complications.
Freeman et al. (Wed,) studied this question.