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Engineering the Future of Restorative Clinical Peripheral Nerve Surgery
Justin C Burrell1,2,3,4, Zarina S Ali1,5, Eric L Zager1,5
1Center for Brain Injury & Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA.
Advanced Healthcare Materials
|April 1, 2025
Summary
Peripheral nerve injury presents challenges, but new bioengineering strategies offer hope for full functional recovery. This research proposes a framework to improve nerve regeneration and address limitations of current treatments.
Area of Science:
- Biomedical Engineering
- Regenerative Medicine
- Neuroscience
Background:
- Peripheral nerve injury (PNI) causes significant functional deficits.
- Current treatments like nerve grafts have limited efficacy and sacrifice healthy tissue.
- Nerve regeneration is a complex process influenced by neuronal, axonal, cellular, and target organ factors.
Purpose of the Study:
- To propose a comprehensive framework for developing restorative strategies for PNI.
- To address the limitations of current PNI treatments.
- To advance the understanding of nerve regeneration physiology and pathology.
Main Methods:
- Review of current PNI interventions and their limitations.
- Analysis of key factors influencing nerve regeneration.
- Proposal of a novel framework integrating bioengineering solutions.
- Discussion of physiological and pathological aspects of nerve repair.
Main Results:
- Identified four critical physiological responses in nerve repair that need addressing.
- Highlighted the potential of emerging bioengineering solutions (biomaterials, drug delivery, etc.).
- Proposed a framework to guide the development of more effective PNI therapies.
Conclusions:
- Current PNI treatments offer minimal functional recovery.
- A comprehensive framework addressing all key regeneration factors is needed.
- Bioengineering strategies guided by this framework could enable full functional recovery after PNI.
