Title: POCUS for Ankle Effusion<br/>
Author: Alexis Salerno<br/>
<a href='mailto:alexis.salerno@som.umaryland.edu'>[Click to email author]</a><hr/>
Link: <a href='https://umem.org/educational_pearls/4422/'>https://umem.org/educational_pearls/4422/</a><hr/><p>Many patients present to the emergency department for ankle swelling. On way to identify signs of intra-articular swelling is to use POCUS. To perform this, place the linear probe at the tibio-talar junction with the probe marker placed towards the patient’s head. An effusion is identified as anechoic fluid in-between the tibia and talus bone. </p>
<p><img src="https://umem.org/files/uploads/content/pearls/Ankle_Effusion_Small-65b81beac1a66.jpeg" alt="" /></p>
<p>POCUS has been shown to improve first-pass success and overall success as compared to a landmark based approach for medium-sized joints. When performing an ankle arthrocentesis with POCUS, care should be taken to avoid blood vessels and tendons.</p>
<fieldset><legend>References</legend><p>Gibbons RC, Zanaboni A, et al. Ultrasound-versus landmark-guided medium-sized joint arthrocentesis: A randomized clinical trial. Acad Emerg Med. 2022 Feb;29(2):159-163. doi: 10.1111/acem.14396.</p>
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