Group 1: nerve repair with no gap Group 1a (standard): Epineural Suture Group 1b (experimental): Epineural Suture and Fibrin Wrap Group 2: Nerve repair with a critical sized (>5mm) defect Group 2a (standard): Epineural suture and autologous nerve transplantation from lateral antebrachial cutaneous nerve (LACN) Group 2b (experimental): Epineural suture and Fibrin Conduit