• Matthew J McGuinness, Christopher Harmston, and STRATA.
• University of Auckland; Surgical Department, Whangārei Hospital, Manu Road, Whangārei, New Zealand. Electronic address: Matt@McGuinness.net.nz.
• Injury. 2022 Sep 1; 53 (9): 2953-2959.

AimRib fractures are common and associated with significant morbidity and mortality. There is limited literature on patient care and outcomes in Aotearoa New Zealand (AoNZ). The aim of this study is to describe key clinical outcomes and management interventions for patients with rib fractures across AoNZ.MethodsA national prospective multicenter observational cohort study was performed. Patients admitted between 1 December 2020 and 28 February 2021 with one or more radiologically proven rib fractures and an Abbreviated Injury Score of the head or abdomen of less than 3 were included. The primary outcomes of interest were the rates of thirty-day pneumonia, re-presentation and mortality. The secondary outcomes of interest were rate of surgical stabilisation of rib fractures (SSRF) and pain management of patients with rib fractures. Binomial logistic regression was performed for the primary outcomes and funnel plots were created of the inter-hospital variation in pneumonia.ResultsFourteen AoNZ hospitals and 407 patients were included. Mean age was 57.4 (SD 18.7), 28% were female, 15% Māori and 85% non-Māori. The median number of rib fractures was 4. The rate of pneumonia, re-presentation and mortality was 11%, 8% and 2%, respectively. Logistic regression found the odds of pneumonia increased with each additional rib fracture (OR 1.15 95% CI 1.05-1.25) and the odds of re-presentation increased with age (OR 1.028 95% CI 1.005-1.051) and Māori ethnicity (OR 2.754 95% CI 1.077-7.045). The funnel plot of inter-hospital variation in pneumonia rate adjusted for clinically plausible variables found no centre lay outside the 95% confidence interval. SSRF was performed in 2% of patients. 58% of patients had a pain team review and 23% a regional block.ConclusionThis study describes clinical outcomes for patients with isolated rib fractures from multiple hospitals in AoNZ. A moderate pneumonia rate of 11% was found which is likely amendable to reduction with quality improvement initiatives. Consideration should be given to further resource and improve the access to SSRF and regional analgesia given the low utilization found across AoNZ. A higher re-presentation rate in Māori and elderly patients was found which needs further investigation.Copyright © 2022. Published by Elsevier Ltd.

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