The promising applications of 3D printing technology in neurotrauma
Neurotrauma mainly includes brain injury, spinal cord injury, and peripheral nerve injury, which are characterized by high morbidity and disability rates, and involve costly treatments. Currently, various strategies have been applied for the treatment of neurotrauma, but their efficacy is unsatisfactory. New effective strategies are needed to be developed to promote recovery after neurotrauma. In recent years, three-dimensional (3D) printing technology has been used to manufacture customized and complex constructs in tissue engineering applications, exhibiting great potential in repairing nervous system injuries. In this review, we introduce the principles and advantages of 3D printing and 3D bioprinting technologies that have been applied to repair injured nervous system. In particular, we summarize the current strategies in the aspects of biomaterials, physical stimulation, bioactive substances, cell transplantation, and their combination that have been considered in fabricating 3D-printed devices for neurotrauma treatment. Additionally, the challenges and prospects of 3D printing for neurotrauma treatment were also presented.
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