Integrated Therapeutic Strategies in the Rehabilitation of Upper-Limb Traumatic Peripheral Nerve Injuries

Traumatic peripheral nerve injuries of the upper limb remain a significant cause of long-term disability, chronic pain, and impaired quality of life, particularly among young and active individuals. While timely surgical repair restores structural continuity, functional recovery ultimately depends on early, sustained and neurophysiology-driven rehabilitation. Rehabilitation not only prevents secondary complications but also shapes the central and peripheral microenvironment required for reinnervation. Early postoperative care focuses on edema control, pain modulation, protective splinting and maintenance of passive mobility, establishing the biomechanical and neurobiological conditions for axonal regeneration. As reinnervation emerges, therapy transitions to progressive sensorimotor re-education, including graded sensory retraining, mirror-based visual feedback, bilateral tasks and neuromuscular facilitation to reverse cortical disorganization and reactivate functional motor units. Advanced rehabilitation incorporates task-specific practice, proprioceptive enrichment, neurocognitive methods and technology-assisted interventions such as neuromuscular electrical stimulation, virtual reality and biofeedback, all of which exploit activity-dependent plasticity to refine fine motor control. Effective management requires close collaboration among surgeons, physiotherapists and occupational therapists to align surgical strategies with biological regeneration timelines and individualized therapy goals. This review synthesizes current evidence from neurobiology, surgical reconstruction and rehabilitation science, emphasizing the integration of sensory re education and neuroplasticity-based techniques to enhance long-term hand function following upper-limb peripheral nerve injuries.