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KMID : 1040920170020010035
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Journal of Minimally Invasive Spine Surgery and Technique
2017 Volume.2 No. 1 p.35 ~ p.38
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Percutaneous Full Endoscopic Ligamentum Flavum Splitting Interlaminar Approach for Removal of Dorsally Migrated Lumbar Disc Herniation: A case Report with Technical Note
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Kim Hyeun-Sung
Paudel Byapak
Jang Jee-Soo
Oh Seong-Hoon
Jang Il-Tae
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Abstract
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Treatment of dorsally migrated lumbar disc described so far commonly in present literature is removal by open technique through hemi or complete laminectomy or by use of microsurgical technique or by partial use of endoscope without use of irrigation system. We present a case of dorsally migrated disc herniation treated safely with good outcome by Percutaneous Full Endoscopic Ligamentum Flavum Splitting Interlaminar Approach. A 60 years old man presented with subacute onset of back pain and right leg radiating pain with weakness of right great toe dorsiflexion and diagnosed as a case of dorsally migrated L4-5 disc herniation was treated with this technique. He had also subtle instability at that level.His pain resolved immediately after surgery. Weakness of right great toe also resolved gradually in 2 months. Postoperative X-ray showed no further instability. Postoperative MRI revealed complete removal of disc with resolution of cauda equina compression. No complication was noted related to this technique. This new technique ultimately preserves motion segment while simultaneously addressing symptomatic pathology of dorsally migrated HNP with added benefits of minimally invasive spine surgery.
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KEYWORD
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Dorsally migrated lumbar disc herniation, Ligamentum flavum splitting interlaminar approach, Percutaneous full endoscopic removal, Subtle instability
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