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Published byEmerald York Modified over 8 years ago
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Neurologic deficit of endoscopic complications 최우진, 전기현, 김현성, 김관태 허리사랑병원
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Case data ( N= 1023 4yrs. 2004 – 2007 ) 허리사랑병원 PELD & PEID L1-24 L2-324 L3-495 L4-5518 L5-S1387 total1023
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Direct Neural Injury upper level disc & far lateral disc & interlaminar approach 에서 발생될 수 있다. 초창기엔 scope view 없이 large forcep 사용 에서 위험성이 높았다. dura tear 나 small forcep 에 의한 some root leaflet 의 손상이 수술중 발생한다면 일단 수술은 끝까지 마치고 판단한다. Unexperienced period
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Disc 5-1 Rt inferior PEID like transdural approach Point: axillar 접근시엔 channel oblique tip 의 위치가 caudal-medial 방향으로 접근해야 함
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far lateral disc 3-4, 5-1 Lt Point: oblique channel 이 round 보다 디스크제거가 더 용이하나 bleeding 으로 view 가 덜 좋고 Scope 시야내에 root 가 있을 수 있으므로 더 주의해야한다.
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Interlaminar axillar trial of recurred disc L5-S1 Lt Point: wide laminectomy 의 revision 은 bone margin 따라 shoulder 로 접근해야한다.
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Trial interlaminar app: Disc L4-5 Rt inferior sequestrated
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Trial interlaminar app Recurred 4-5 Rt after open surgery Packing lateral exiting zone, medial pedicle
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Trial to L3-4 PEID
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1 st 36/M, disc 3-4 Lt inferior PEID preoppostop
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2 nd 69/M, 3-4 Rt inferior PEID preoppostop
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3 rd Foot drop after PEID L3-4 Rt 65/F Rt thigh pain & gait disturbance agg 1 weeks Dx: disc 3-4 rt inferior spinal stenosis 3-4-5 spondylolisthesis 3-4 Parkinson & DM medication 중임
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X-ray & CT
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MRI
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Clinical course Postop: Subside severe rt leg pain POD #1 Rt ankle dorsiflex GO Rt knee flex GIV MRI 후 observation POD #4 open decompression L3-4-5 두달입원하며 Walker 잡고 보행할정도 호전됬 으나 foot drop 은 dense 하게 지속됨
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Preop postop#1 postop#4
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Endoscopic view : L3-4 Rt
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왜 neurologic deficit 발생했나 ? Ischemia - pressure injury for root traction >> direct root inrury Initial traction point – rupture site Initial disc space decompression fail Oblique channel tip – compression Long continuous traction time Indication fail : stenosis & listhesis Parkinson & DM
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Risk of traction ischemia in PEID Combined stenosis Old age Upper level Adhesive root Initial shoulder approach than axillar Long continous traction without decompression Preop. weakness or severe pain Hard, thick disc Root 밑으로 빵빵하고 pulsation 없을때 특히 주위
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Prevention of traction injury in PEID Intermittent traction Initial decompression without channel traction ( probe, RF, punch, forcep 만 넣어서 먼저 제거함 ) More upper site traction if possible Initial axillar decompression if possible Wide opening of lig flavum Upper level L3-4 이상은 bone 작업없이 자 제
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Neurologic deficit of endoscopic lumbar discectomy Risk: 1. upper level disc 2. far lateral disc 3. severe compression disc Cause: Pressure injury > direct Method: pressure 가 전혀 없는 곳부터 channel & scope 보면서 target 를 피해서 접근해 들 어가 initial decompression 후 root pressure 풀 어 놓고 channel 접근하면 안전함.
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Further trial of Endoscopic spine surgery is effective bone work & fusion 감사합니다.
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