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KMID : 1145220200170000066
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Neurospine
2020 Volume.17 No. 0 p.66 ~ p.73
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Modified Interlaminar Endoscopic Lumbar Discectomy for Highly Upmigrated Disc Herniation: A Proctorship Description of the Technique via Translaminar Route
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Khandge Ashwinkumar Vasant
Kim Jin-Sung
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Abstract
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Lumbar disc herniation (LDH) comprises one of the most common causes of low back pain. 35%?72% of LDH is associated with disc fragment migration. The migration of the disc fragments can be high-grade up, low-grade up, high-grade down, and low-grade down. Spine surgeons deal with unique challenges during surgical management of migrated discs. Operational challenges with open surgery include extensive lamina excision, pars excision, and potential for iatrogenic instability without fixation. In contrast, rigid instruments and poor visualization are the challenges with transforaminal endoscopic spine surgery (ESS). Hence interlaminar approach with ESS is an excellent choice with these migrated LDH. The creation of a translaminar crater in the cranial lamina without dealing with the interlaminar window or ligamentum flavum could be an excellent option to deal with these herniations face front. The lamina is the only anatomical barrier between the endoscope and the migrated disc fragment. Hence with a translaminar approach, unnecessary flavectomy can be avoided. In this technical report and video, we demonstrate the surgical technique of performing the translaminar ESS for highly upmigrated LDH with the preservation of optimal natural anatomy.
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KEYWORD
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Lumbar disc herniation, Migrated disc herniation, Minimally invasive spine surgery, Endoscopic spine surgery, Interlaminar endoscopy, Translaminar route
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