The radio-radial nerve transfer for elbow extension restoration in C5 to C7 nerve root injury


  • Leandro Pretto Flores M.D.

    Corresponding author
    1. Unit of Neurosurgery, Hospital de Base do Distrito Federal, Post-Graduate Program in Medical Sciences, University of Brasília, Brasília, Distrito Federal, Brazil
    • SQN 208 Bloco F Apartamento 604, Asa Norte, Brasília, Distrito Federal, Brazil
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Extension of the elbow is required to oppose gravity; however, activation of the triceps brachii is frequently underestimated during the surgical planning for brachial plexus injuries. This report aims to describe a novel technique of distal nerve transfer designed for elbow extension reconstruction in patients sustaining a C5–C7 nerve root injury. We report a patient sustaining a brachial plexus injury with triceps palsy and preserved finger extension motion; after careful intraneural dissection of the radial nerve, a fascicle innervating the extensor digitorum communis muscle was sectioned, derouted and connected to a motor branch to the lateral head of the triceps. Eleven months after surgery, elbow extension strength scored MRC M4. No deficits on finger extension were observed. © 2011 Wiley Periodicals, Inc. Microsurgery, 2012.