Nerve transfers for the upper extremity function restoration.

Nerve transfers have shifted from "salvage" procedures to a primary, biology-based strategy for restoring priority function after severe peripheral nerve injury, particularly brachial plexus injury. In this invited opinion, we summarize the historical roots of nerve transfer surgery and outline the modern rationale for distal coaptation - shortening regeneration distance, bypassing scarred zones, and directing axons toward functionally critical targets while preserving native biomechanics. We discuss practical donor-recipient selection principles (redundancy, axonal capacity, proximity, and synergy) and contrast proximal versus distal transfer concepts within contemporary reconstructive algorithms. Using representative examples, we emphasize how distal transfers can be integrated with grafting, tendon transfers, or free muscle transfer in staged reconstructions. Based on our clinical experience across elbow, shoulder, and hand reinnervation, we highlight consistently high rates of functionally meaningful recovery and substantial improvements in patient-reported quality of life.