The donor anterior interosseous nerve (AIN) is transferred to the side of the recipient ulnar motor fascicular group within the distal forearm to preserve ulnar nerve motor intrinsics. Guyon’s canal release is a required part and is completed prior to this procedure. Specific to this case, a revision ulnar nerve transposition was completed proximally. This procedure is a variation of the end-to-end AIN to ulnar motor nerve transfer. The extended version includes both the Guyon’s canal release and the reverse end-to-side nerve transfer.
An incision is made ulnar to the thenar crease with a Brunner’s incision across the wrist and proximally across the distal forearm.
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Disclosure: No authors have a financial interest in any of the products, devices, or drugs mentioned in this production or publication.