• Kabytto Chen, Bayan Minasian, Evangeline Woodford, Pranav Shivashankar, Kah Ann Ho, Saimurooban Muralidaran, James Elhindi, and Jeremy Hsu.
• Discipline of Surgery, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia; Trauma Service, Department of Surgery, Westmead Hospital, Sydney, Australia. Electronic address: kabytto.chen@health.nsw.gov.au.
• Injury. 2024 Jul 1; 55 (7): 111562111562.

BackgroundOptimal treatment of patients with rib fractures requires identification of those patients at risk of pulmonary complications. It is also important to determine which patients would benefit from Surgical Stabilisation of Rib Fractures (SSRF). This study aims to validate two scoring systems (RibScore and SCARF score) in predicting complications and association with SSRF in an Australian trauma population. Clinical observation suggests that complications and criteria for SSRF is associated with anatomical and physiological factors. Therefore it is hypothesized that utilisation of an anatomical (RibScore) and physiological (SCARF) in conjunction will have improved predictive ability.MethodRetrospective cohort study of rib fracture patients admitted to an Australian Level I trauma centre from Jan 2017 to Jan 2021. RibScore and SCARF score were calculated. Multivariate logistic regression was performed to determine risk factors associated with complications and SSRF, as well the scoring systems' ability via ROC AUC.Results1157 patients were included. Higher median RibScore (1vs0; p < 0.001) and SCARF score (3vs1, p < 0.001) was associated with development of complications. Similarly for SSRF, RibScore (3vs0; p < 0.001), SCARF score (3vs1; p < 0.001) were higher. On multivariate analysis, increasing RibScore and SCARF score were associated with an increased risk of respiratory failure, pneumonia, death, and SSRF. The sensitivity for a patient with a high risk score in either RibScore or SCARF increased to 96.3 % in identifying pulmonary complications (from 66.7 % in RibScore and 88 % in SCARF, when used individually) and 91.9 % in identifying association with SSRF (from 86.5 % in RibScore and 70.3 % in SCARF).ConclusionRibScore and SCARF score demonstrate predictive ability for complications and SSRF in an Australian trauma rib fracture population. Combining a radiological score with a clinical scoring system demonstrates improved sensitivity over each score individually for identifying patients at risk of complications from rib fractures, those who may require SSRF, and those who are low risk.Study TypeRetrospective Cohort Study LEVEL OF EVIDENCE: Level III.Crown Copyright © 2024. Published by Elsevier Ltd. All rights reserved.

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