Elbow MSK ultrasound in children with radial subluxation

Abnormal MSK ultrasound findings of the elbow posterior fat pad in children with radial head subluxation

In radial head subluxations (RHS), which is one of the most common elbow injuries in children, the annular ligament slips into the radiohumeral articular space. History taking and physical examination are often not sufficient to differentiate RHS from elbow fractures. However, MSK ultrasound provides the possibility to detect an elevated posterior fat pad (PFP) or lipohemarthrosis of the PFP, findings that are highly sensitive for fracture at the elbow. It is not clear though whether the same findings are also present in children with RHS. 


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