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Interlaminar Approach in the Lumbar Spine

Authors
 Kim, Dongkyu  ;  Park, Jeong-Yoon 
Citation
 Journal of Minimally Invasive Spine Surgery and Technique, Vol.9(2) : 183-185, 2024-10 
Journal Title
 Journal of Minimally Invasive Spine Surgery and Technique 
ISSN
 2508-2043 
Issue Date
2024-10
Keywords
Interlaminar approach ; Lumbar spine ; Minimal invasive surgery ; Unilateral biportal endoscopy
Abstract
Herein, we describe the surgical techniques of endoscopic interlaminar approach in the lumbar spine through a video presentation of cases involving 3 patients. In every procedure using the interlaminar approach, the lower margin of the lamina should be first identified and used as a surgical landmark. Laminectomy with drilling begins from the lower margin of the lamina and continues upward along the ligamentum flavum. The laminectomy ends when the drill meets the midline cleft of the ligamentum flavum. Once the midline cleft has been detected, an additional bony work-up is performed to detach the lateral and lower margins of the ligamentum flavum. Then, the ligamentum flavum is removed and the thecal sac is exposed. Full exposure of the lateral margin of the thecal sac and ipsilateral traversing root is required. For cases that re-quire contralateral decompression, an additional contralateral bony work-up and decompression of the contralateral traversing root are performed. Decompression of the contralateral exiting root can also be performed with the advantage of a wide endoscopic view angle. Retraction of the thecal sac and traversing root exposes the surface of the disc, and discectomy can be per-formed. Before the termination of surgery, surgeons should always confirm sufficient decompression of the nerve roots and hemostasis. © 2024, Korean Minimally Invasive Spine Surgery Society. All rights reserved.
DOI
10.21182/jmisst.2024.01494
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Dongkyu(김동규)
Park, Jeong Yoon(박정윤) ORCID logo https://orcid.org/0000-0002-3728-7784
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/202388
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