Severe peripheral nerve injury occasionally requires urgent nerve grafting especially with significant separation of the proximal and distal ends of the injured nerve. Proper reinnervation to provide continued sensory and motor function is essential especially in the pediatric population. These patients would suffer lifelong disability without correction, yet have significantly improved regenerative capacity with prompt and effective management, making nerve grafts an ideal choice for complete nerve transection. This case report describes the successful sural nerve cable graft reinnervation of a transected femoral nerve in a 21-month-old male. This procedure was made difficult by severe trauma to the surrounding area with laceration of the femoral artery, significant separation of the femoral nerve ends, and the compact anatomy of such a young patient.