Nanoori Suwon Hospital 1 article published in JoVE Medicine A Mobile Outside-in Technique of Transforaminal Lumbar Endoscopy for Lumbar Disc Herniations Hyeun Sung Kim1, Nitin Adsul1, Ankur Kapoor1, Sung Ho Choi2, Jeong Hoon Kim2, Ki Joon Kim2, Jeong Soo Bang1, Kyun Hoong Yang1, Seok Han1, Jae Hyun Lim1, Jee-Soo Jang2, II-Tae Jang1, Seong-Hoon Oh3 1Department of Neurosurgery, Nanoori Hospital, 2Department of Neurosurgery, Nanoori Suwon Hospital, 3Department of Neurosurgery, Nanoori Incheon Hospital Here we present a protocol of a novel outside-in technique of transforaminal endoscopic discectomy for lumbar disc herniations. The technical aspects of the technique, the wide indications of use, and the results of the treatment in 184 patients are described in detail.