Abstract
BackgroundFollowing blunt trauma, diagnosis of shoulder dislocation based on physical examination alone is difficult due to possible concurrent proximal humeral fractures. X-rays are therefore used to confirm diagnosis. Results from recent observational studies comparing diagnostic accuracy of point-of-care ultrasound (PoCUS) with X-rays for shoulder dislocation have been encouraging. The aim of this study was to determine whether PoCUS improves diagnostic accuracy when used with physical examination for the diagnosis of shoulder dislocation, proximal humeral fracture and ascertaining successful reduction in the ED.MethodsA prospective, single-centre, open, parallel randomised control study over a 6-month period was used to answer the research question and test the null hypothesis. Consecutive eligible adult patients attending the ED of Mater Dei Hospital in Malta were randomised to either the control (C) (physical examination only) or experimental group (E) (physical examination and a two-point PoCUS scan). The study objectives were to measure diagnostic accuracy for both examinations for detecting shoulder dislocation, any associated proximal humeral fractures and confirming reduction. X-rays were used as reference standard for both groups.Results1206 patients were enrolled in this study (C n=600, E n=606). 290 dislocations (C n=132 and E n=158), 332 proximal humeral fractures (C n=154 and E n=178) and 278 reductions (C n=130 and E n=148) were analysed. A statistically significant difference (p<0.001) was found between the two groups for diagnostic accuracy in shoulder dislocation (C=65%, likelihood ratio (LR)+=2.03 and LR−=0.35 and E=100%, LR+=∞ and LR−=0), proximal humeral fractures (C=45.7%, LR+=1.23 and LR−=0.52 and E=98.3%, LR+=103.9 and LR−=0.03) and reduction (C=68.7%, E=100%). The null hypothesis for this study was thus rejected.ConclusionsThe addition of PoCUS to a physical examination significantly improves diagnostic accuracy for dislocations, proximal humeral fractures and reduction confirmation.Trial registration numberInternational Standard Randomised Controlled Trials Number Registry (ISRCTN17048126).
Subject
Critical Care and Intensive Care Medicine,General Medicine,Emergency Medicine
Reference23 articles.
1. Anterior Shoulder Dislocation
2. Incidence of shoulder dislocations in the UK, 1995–2015: a population-based cohort study
3. et al Micheo W , Castillo B , Vives JR . Shoulder fractures, separation-dislocation, and other soft tissue injuries, 2014. Available: https://now.aapmr.org/shoulder-fractures-separation-dislocation-and-other-soft-tissue-injuries/
4. Acute complications associated with shoulder dislocation at an academic emergency department;Perron;J Emerg Med,2003
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献