Table of Contents Author Guidelines Submit a Manuscript
BioMed Research International
Volume 2018, Article ID 5349680, 7 pages
Research Article

Suprapedicular Circumferential Opening Technique of Percutaneous Endoscopic Transforaminal Lumbar Discectomy for High Grade Inferiorly Migrated Lumbar Disc Herniation

1Department of Neurosurgery, Nanoori Suwon Hospital, Suwon, Republic of Korea
2Department of Neurosurgery, Hasan Sadikin Hospital, College of Medicine, Padjadjaran University, Bandung, Jawa Barat, Indonesia
3Department of Orthopaedics, Grande International Hospital, Kathmandu, Nepal
4Department of Neurosurgery, Nanoori Hospital, Seoul, Republic of Korea
5Department of Neurosurgery, Nanoori Incheon Hospital, Incheon, Republic of Korea
6Nanoori Medical Research Institute, Nanoori Hospital, Seoul, Republic of Korea

Correspondence should be addressed to Hyeun Sung Kim; ten.liamnah@soruen

Received 6 April 2017; Accepted 20 December 2017; Published 18 January 2018

Academic Editor: Arianna Scuteri

Copyright © 2018 Hyeun Sung Kim et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Purpose. To evaluate the efficacy of suprapedicular circumferential opening technique (SCOT) of percutaneous endoscopic transforaminal lumbar discectomy (PETLD) for high grade inferiorly migrated lumbar disc herniation. Material and Methods. Eighteen consecutive patients who presented with back and leg pain with a single-level high grade inferiorly migrated lumbar disc herniation were included. High grade inferiorly migrated disc was removed by the SCOT through PETLD approach. Outcome evaluation was done with visual analog scale (VAS) and Mac Nab’s criteria. Result. There were 14 males and 4 females. The mean age of patients was years. One, 4, and 13 patients had disc herniation at L1-2, L3-4, and L4-5 levels, respectively, on MRI, which correlated with clinical findings. The mean follow-up duration was months. According to Mac Nab’s criteria, 9 patients (50%) reported excellent and the remaining 9 patients (50%) reported good outcomes. The mean preoperative and postoperative VAS for leg pain were and , respectively (). Improvement in outcomes was maintained even at final follow-up. There was no complication. Conclusion. In this preliminary study we achieved good to excellent clinical results using the SCOT of PETLD for high grade inferiorly migrated lumbar disc herniation.