Royal College of Surgeons in Ireland
Accuracy-of-Point-of-Care-Ultrasonography-in-Confirming-Shoulder-Reduction-in-Emergency-Departments.pdf (244.12 kB)

Accuracy of point-of-care-ultrasonography in confirming shoulder reduction in Emergency Departments

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journal contribution
posted on 2022-10-27, 16:40 authored by Nikita Vainberg, R Hadi, A Devlin, A Moloney, R Nabeel, K Copperthwaite, S O'Mahony, F Lannon, S Lee, F Turcu, S Siddiqu, T Murray, M Logan, S Kelada, Peadar GilliganPeadar Gilligan


Accurate identification of the successful reduction of a dislocated shoulder could avoid additional episodes of procedural sedation and repeated performance of X-rays. The objective of this study was to assess the diagnostic accuracy of point-of-care-ultrasound (POCUS) in the confirmation of a successful joint reduction in patients with shoulder dislocation. 


This was a single-centre, prospective observational study set in an urban academic ED in Ireland, with a convenience sample of adult patients with shoulder dislocation on X-ray. Ultrasound was performed on participants before and after joint reduction using a posterior approach technique. The operator’s confidence levels were recorded after image acquisition. 


Thirty-three subjects were recruited. All dislocations were correctly identified on pre-reduction US, indicating a sensitivity of 100% (CI 89.42 – 100). Post-reduction US confirmed successful reduction in 30 subjects that were subsequently reported as such on X-Ray, giving it a specificity of 100% (CI 88.43 – 100). Failure to achieve reduction was correctly identified on US in three cases, resulting in post-reduction US Sensitivity of 100% (CI 29.24 – 100) and 100% accuracy (CI 89.42 – 100). 


This study has shown that POCUS, with a posterior approach technique, has 100% sensitivity and specificity in confirming successful shoulder reduction in the ED.



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Published Citation

Vainberg N. et al. Accuracy of point-of-care-ultrasonography in confirming shoulder reduction in Eemergency Departments. Ir Med J. 2022;115(1):515

Publication Date

January 2022


  • Beaumont Hospital
  • Medicine


Irish Medical Association


  • Published Version (Version of Record)