Pediatrics - Nursemaid's Elbow
Caption
2-year-old female was brought to the ED refusing to use her left arm after her father caught her by the arm to prevent her falling down flight of stairs. POCUS was performed to confirm clinical suspicion of a Nursemaid’s elbow (or radial head subluxation). The left image reveals classic findings of a Nursemaid’s elbow including widening of the synovial fringe and inward extension of the annular ligament. Further, you can appreciate both the supinator muscle, as well as the annular ligament are being pulled into the joint space, a finding known as hook sign. The image on the right is the post-reduction image showing normal alignment and contour of the annular ligament. Austin Meggitt, MD Pediatric Emergency Ultrasound Fellow Denver Health Medical Center @DenverEMed