“…Treatment methods for nerve injuries can be categorized into surgical and nonsurgical treatments, depending on the type of nerve injury [ 5 ]. Surgical techniques are most frequently used in the treatment of neurotmesis [ 1 ], and the “gold standard” in the treatment of neurotmesis is autologous grafts [ 1 , 2 , 3 , 8 , 12 , 13 , 14 , 15 ]; however, the success rate of this therapy does not always result in correct nerve regeneration [ 14 , 16 ] and is associated with loss of function [ 1 , 3 , 10 , 14 ] and potential neuroma formation at the donor site [ 14 , 15 ]. To overcome these disadvantages, the development of NGCs to unite defects in peripheral nerves has been an important field of research in recent years [ 2 , 3 , 14 , 15 , 17 ].…”