Peripheral nerves are structured so that the axons are surrounded by most often a myelinated sheath and then an endoneurium. A perineurium surrounds that and the outermost layer is considered the epineurium.[2] When injury occurs, “local vascular trauma leads to hemorrhage and edema (swelling), which results in vigorous inflammatory response resulting in scarring of the injured segment.[3] In most cases, due to the extreme nature of the injury, there is typically complete loss of function.