Abstract
Abstract Introduction Shoulder dislocation is a painful injury best treated by early closed reduction. Patients often require intravenous sedation, with airway monitoring in a safe setting. We implemented methoxyflurane inhalational analgesia (Penthrox) to aid shoulder dislocation reduction without the need for sedation and evaluated the effectiveness and adverse events. Method Patients presenting to the minor injury’s unit at Wrexham Maelor Hospital between 01/04/2020 and 26/05/2020 with only shoulder dislocation were included. Patients had Penthrox and underwent closed reduction. Pre and post reduction shoulder radiographs were reviewed to determine reduction success and time between radiographs was evaluated. Adverse events were recorded. Reduction success and times between radiographs were compared to a consecutive retrospective cohort of patients who underwent closed shoulder dislocation reduction with sedation before implementing Penthrox. Results 22 patients were included. Mean patient age was 44.6 years. Majority were male (72%). Penthrox was used in 11 patients. All patients had their shoulder dislocation reduced successfully. Mean time between reduction radiographs for the Penthrox group was 40.8 min (95%CI 27.4 to 54.3). This was shorter than the intravenous sedation group mean 157.7 minutes (95%CI 92.3 to 223.2, p = 0.0026). No documented adverse events with Penthrox. Conclusions Simple shoulder dislocations can be reduced safely, quickly, and effectively using Penthrox.
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