Techniques and graft materials for repairing peripheral nerve defects

Abstract

Peripheral nerve defects refer to damage or destruction occurring in the peripheral nervous system, typically affecting the limbs and face. The current primary approaches to address peripheral nerve defects involve the utilization of autologous nerve transplants or the transplantation of artificial material. Nevertheless, these methods possess certain limitations, such as inadequate availability of donor nerve or unsatisfactory regenerative outcomes post-transplantation. Biomaterials have been extensively studied as an alternative approach to promote the repair of peripheral neve defects. These biomaterials include both natural and synthetic materials. Natural materials consist of collagen, chitosan, and silk, while synthetic materials consist of polyurethane, polylactic acid, and polycaprolactone. Recently, several new neural repair technologies have also been developed, such as nerve regeneration bridging technology, electrical stimulation technology, and stem cell therapy technology. Overall, biomaterials and new neural repair technologies provide new methods and opportunities for repairing peripheral nerve defects. However, these methods still require further research and development to enhance their effectiveness and feasibility.

Commentary: Techniques and graft materials for repairing peripheral nerve defects

“…We read with interest the review article by Zou et al (1) entitled "Techniques and graft materials for repairing peripheral nerve defects". Here, the Authors discuss current approaches to peripheral nerve injury (PNI) with substance loss (autograft/allograft/nerve conduit), also highlighting methods' advantages and disadvantages, following our previous contribution (2).…”

“…Here, the Authors discuss current approaches to peripheral nerve injury (PNI) with substance loss (autograft/allograft/nerve conduit), also highlighting methods' advantages and disadvantages, following our previous contribution (2). In addition, appealing materials for nerve conduits (NC) fabrication were overviewed too (1), highlighting that their intrinsic characteristics can affect the regeneration outcome (1,2).…”