Abstract

Radial nerve compression at the elbow is rare and has variable clinical presentations. Compression of the deep motor branch at the arcade of Frohse constitutes a rare syndrome and could have diverse etiologies. It leads to paralysis of finger and wrist extensors. We report the case of a 20 years old male who consulted for weakness in the extensor muscles of the right hand that had been evolving slowly over 8 years without sensory involvement. On electromyogram, compression of the radial nerve at the radial tunnel was suspected and the exact location was determined with echography to be at the arcade of Frohse. The patient was then operated upon and the recovery of motor functions post-op was satisfactory.