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Koga et al. Minimal laminectomy with the interlaminar approach for PELD

conventional surgeries such as open, microscopic, Takeuchi M, Dezawa A. State of the art: transforaminal approach for
and microendoscopic discectomy, the extent of bone percutaneous endoscopic lumbar discectomy under local anesthesia. J
Med Invest 2014;61:217-25.
removal in the ILA is extremely small. Removal of the 3. Yeung AT. The evolution and advancement of endoscopic foraminal
yellow ligament to this small extent is also sufficient in surgery: one surgeon’s experience incorporating adjunctive
the ILA for PELD. technologies. SAS J 2007;1:108-17.
4. Hirano Y, Mizuno J, Takeda M, Itoh Y, Matsuoka H, Watanabe
In conclusion, the preliminary results of a small number K. Percutaneous endoscopic lumbar discectomy -- early clinical
experience. Neurol Med Chir (Tokyo) 2012;52:625-30.
of cases show that minimal laminectomy with the ILA 5. Nellensteijn J, Ostelo R, Bartels R, Peul W, van Royen B, van Tulder
for PELD is feasible for the treatment of LDH with a M. Transforaminal endoscopic surgery for symptomatic lumbar
narrow interlaminar space and high-grade migration. disc herniations: a systematic review of the literature. Eur Spine J
Furthermore, minimal laminectomy is also useful for 2010;19:181-204.
cases showing recurrent LDH, obesity, or an immobile 6. Yokosuka J, Oshima Y, Kaneko T, Takano Y, Inanam H, Koga
H. Advantages and disadvantages of posterolateral approach
nerve root. for percutaneous endoscopic lumbar discectomy. J Spine Surg
2016;2:158-66.
Authors’ contributions 7. Lee S, Kim SK, Lee SH, Kim WJ, Choi WC, Choi G, Shin SW.
Conception and design: H. Koga Percutaneous endoscopic lumbar discectomy for migrated disc
Provision of study materials or patients: H. Koga, H. herniation: classification of disc migration and surgical approaches.
Eur Spine J 2007;16:431-7.
Inanami 8. Tonosu J, Oshima Y, Shiboi R, Hayashi A, Takano Y, Inanami H,
Collection and assembly of data: H. Koga Koga H. Consideration of proper operative route for interlaminar
Data analysis and interpretation: H. Koga approach for percutaneous endoscopic lumbar discectomy. J Spine
Surg 2016;2:281-8.
Manuscript writing: H. Koga 9. Zekaj E, Menghetti C, Saleh C, Isidori A, Bona A, Aimar E, Servello
Final approval of manuscript: H. Koga, H. Inanami D. Contralateral interlaminar approach for intraforaminal lumbar
degenerative disease with special emphasis on L5-S1 level: a technical
Acknowledgments note. Surg Neurol Int 2016;7:88.
We thank all the operating room staff for their technical 10. Choi G, Prada N, Modi HN, Vasavada NB, Kim JS, Lee SH.
assistance, and the medical records clerks who helped Percutaneous endoscopic lumbar herniectomy for high-grade down-
migrated L4-L5 disc through an L5-S1 interlaminar approach: a
collect patient data. We also thank all radiological technical note. Minim Invasive Neurosurg 2010;53:147-52.
department staff for accumulating CT and MRI data. 11. Kim CH, Chung CK, Jahng T-A, Yang HJ, Son YJ. Surgical outcome
of percutaneous endoscopic interlaminar lumbar diskectomy for
Financial support and sponsorship recurrent disk herniation after open diskectomy. J Spinal Disord Tech
2012;25:E125-33.
This work was partly supported by a grant from the 12. Dezawa A, Mikami H, Sairyo K. Percutaneous endoscopic
Iwai Medical Foundation. translaminar approach for herniated nucleus pulposus in the hidden
zone of the lumbar spine. Asian J Endosc Surg 2012;5:200-3.
Conflicts of interest 13. Lee SH, Kang BU, Ahn Y, Choi G, Choi YG, Ahn KU, Shin SW,
The authors have no conflicts of interest to declare. Kang HY. Operative failure of percutaneous endoscopic lumbar
discectomy: a radiologic analysis of 55 cases. Spine (Phila Pa 1976)
2006;31:E285-90.
Patient consent 14. Lee SH, Choi KC, Baek OK, Kim HJ, Yoo SH. Percutaneous
Informed consent was obtained from the patients endoscopic intra-annular subligamentous herniotomy for large
for publication of this study and any accompanying central disc herniation: a technical case report. Spine (Phila Pa 1976)
images. 2014;39:E473-9.
15. Oshima Y, Takeshita K, Inanami H, Takano Y, Koga H, Iwahori T, Baba
S, Tanaka S. Cervical microendoscopic interlaminar decompression
Ethics approval through a midline approach in patients with cervical myelopathy: a
This study was approved by the ethics committee of technical note. J Neurol Surg A Cent Eur Neurosurg 2014;75:474-8.
the Iwai Medical Foundation. 16. Baba S, Oshima Y, Iwahori T, Takano Y, Inanami H, Koga H.
Microendoscopic posterior decompression for the treatment of
thoracic myelopathy caused by ossification of the ligamentum flavum:
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62 Mini-invasive Surgery ¦ Volume 1 ¦ June 30, 2017