Endoscopic Spinal Surgery for Herniated Lumbar Discs

Shim, Young-Bo; Lee, Nok-Young; Huh, Seung-Ho; Ha, Sang-Soo; Yoon, Kang-Joan

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자료유형: 학술저널

저자정보: Shim, Young-Bo (Department of Neurosurgery, St. Peter's Hospital) Lee, Nok-Young (Department of Neurosurgery, St. Peter's Hospital) Huh, Seung-Ho (Department of Neurosurgery, St. Peter's Hospital) Ha, Sang-Soo (Department of Neurosurgery, St. Peter's Hospital) Yoon, Kang-Joan (Department of Neurosurgery, St. Peter's Hospital)

저널정보: 대한신경외과학회 대한신경외과학회지 대한신경외과학회지 제41권 제4호

발행연도: 2007.1

수록면: 241 - 245 (5page)

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Objective : So called "minimally invasive procedures" have evolved from chemonucleolysis, automated percutaneous discectomy, arthroscopic microdiscectomy that are mainly working within the confines of intradiscal space to transforaminal endoscopic technique to remove herniated epidural disc materials directly. The purpose of this study is to assess the result of endoscopic spinal surgery and favorable indication in the thoracolumbar spine. Methods : The records of 71 patients, 73 endoscopic procedures, were retrospectively analysed. Yeung Endoscopic Spine Surgery system with 7 mm working sleeve and $25^{\circ}$ viewing angle was used. The mean follow up period was 6 months [range, 3-9]. Results : Operated levels were from T12-L1 disc down to L5-L6 of S1 disc. Of 71 cases, 2 patients underwent transforaminal endoscopic surgery twice due to recurrence after initial operation. MacNab's criteria was used to assess the outcome. Favorable outcome, excellent of good, was seen in 78% [57 procedures] of the patients. Among 11 fair outcomes, only 1 procedure was followed by secondary open procedure, laminectomy with discectomy. Two of 5 poor outcomes were operated again by same procedure which resulted in fair outcomes. One patient with aggravated cauda equina syndrome remained poor and a lumbar fusion procedure was performed in other patient with poor outcome. There were 2 postoperative discitis that were treated with conservative care in one and anterior lumbar interbody fusion in the other. Conclusion : Evolving technology of mechanical, visual instrument enables minimal invasive procedure possible and effective. The transforaminal endoscopic spinal surgery can reach as high as T12-L1 disc level. The rate of favorable outcome is mid-range among reported endoscopic lumbar surgery series. Authors believe that the outcome will be better as cases accumulate and will be able to reach the fate of standard open microsurgery.

#Endoscopic #Transforaminal #Herniated discs #Indications #Outcome

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