Complex forearm deformities in brachial plexus birth palsy: Radial head dislocation, forearm bones crossing, and distal ulna volar dislocation

Abstract

We present a rare and complex case involving a 6-year-old boy with brachial plexus birth palsy, which is complicated by secondary developmental changes such as proximal radial head dislocation, distal ulna dislocation, and a severe supination deformity in the forearm. Despite the severity of his condition, his parents declined further treatment. This case underscores the presence of unclassifiable complex anomalies and highlights the need to expand the current classification system, especially when these anomalies are associated with birth palsy. Our report emphasizes the importance of recognizing and addressing these intricate presentations to enhance diagnostic and therapeutic strategies.