Patients will be assessed for baseline characteristics three days prior to the scheduled surgical date,l fine-gauge wires will be implanted percutaneous proximal to the presumed nerve injury site, these wires will be attached to an electrical stimulator (model SD9, Grass Instruments, Providence, RI, USA). At that point, the personnel directly connected to the study will leave the room. A research assistant who is not otherwise connected to the study will take over. An opaque envelope that contains a computed generated randomization code will be opened to determine the patient treatment group.