• Journal of Chest Surgery
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• 제40권6호
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• pp.455-458
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• 2007

4개월 전 요추 4, 5번 추궁절제술을 시행받은 40세 남자환자가 호흡곤란과 하지부종을 주소로 내원하였다. 우측하복부에서 박동성 종괴가 촉진되었고 기계잡음이 청진되었다. 흉부단순촬영에서 심비대소견이 관찰되었고, 복부 전산화 단층촬영에서 제5요추 위치의 총장골동맥과 정맥간에 가성동맥류를 동반한 동정맥루가 존재하였다. 복부정중절개를 하여 동맥류를 통한 동정맥 누공의 일차봉합을 시도하여 상,하부 대동맥과 대정맥 감자결찰 후 동맥류를 절개하였으나 대량출혈이 발생하여 누공봉합에 실패한 후 동맥류를 봉합하였다. 동맥치환술로 수술계획을 변경한 후 동맥류에 연해있는 대동맥과 양측 총장골동맥을 절단봉합한 후, 인공도관을 이용하여 동맥을 재건하였고, 동맥류는 총장골정맥에 붙어있는 상태에서 축소성형술을 시행하였다. 환자는 수술 후 별다른 합병증 없이 8일째 퇴원하였고, 이후 별다른 문제없이 24개월간 추적관찰 중이다. 일반적으로 요추궁절제술 후 발생한 동정맥루에서는 누공봉합술을 시행하나 본 증례에서는 동맥치환술과 동맥류 축소성형술을 시행하였기에 문헌고찰과 함께 보고하는 바이다.

• 대한정형외과 초음파학회지
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• 제7권2호
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• pp.113-119
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• 2014

목적: 제 1천추 신경근 증상을 호소하는 추간판 탈출증 환자 및 척추 협착증 환자에서 초음파를 이용한 선택적 신경근 차단술을 실시하여 고식적인 방사선 영상 증폭기를 이용한 방법과 비교하여 그 결과 및 정확성에 대해 알아보고자 하였다. 대상 및 방법: 2012년 2월부터 2013년 12월까지 요추 추간판 탈출증이나 척추 협착증으로 발생한 하지 방사통을 주소로 내원한 환자 중 제1 천추 신경근 차단술을 시술 받은 38명을 대상으로 후향적으로 평가하였다. 초음파를 이용하여 시행한 18명(A군)과 방사선 영상 증폭기를 이용한 20명(B군)을 1개월 추시 관찰하였다. 효과 판정은 통증의 변화를 평가하기 위한 도구로 시각통증척도(VAS, Visual Analogue Scale)와 기능을 평가하기 위한 도구로 요통 기능장애척도(K-MODI, Korean Modified Oswestry Disability Index)를 이용하였으며, 각 시술 소요 시간을 확인하였다. 결과: VAS 점수는 A군에서 시술 전 $7.40{\pm}0.85$, 시술 1개월 후 $4.7{\pm}1.43$로 나타났고, B군에서 시술 전 $7.39{\pm}1.02$, 시술 1개월 후 $4.36{\pm}1.64$로 두 군 모두 유의한 감소를 보였다. 소요 시간은 A군이 $477.53{\pm}115.02$초, B군이 $492.47{\pm}144.38$초로 유의한 차이를 보이지 않았다. K-MODI는 A군에서 시술 전 $72.8{\pm}12.3$에서 시술 1개월 후 $43.3{\pm}10.3$로 나타났고, B군에서 시술 전 $73.8{\pm}11.5$에서 시술 1개월 후 $44.1{\pm}11.2$로 두 군 모두 유의한 감소를 보였다. 그러나 두 군 사이에서 VAS 점수 및 K-MODI 비교는 유의한 차이는 없었다. 결론: 초음파를 이용한 제 1천추 신경근 차단술은 방사선 영상 증폭기를 이용한 고식적인 방법에 비해 임상 결과 및 소요 시간에 차이는 없으나, 외래에서 간단히 시술 할 수 있는 장점이 있어 추간판 탈출증이나 척추 협착증 환자에서 유용한 시술 방법으로 사료된다.

• Composites Research
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• 제25권4호
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• pp.98-104
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• 2012

본 논문에서는 척추체 간 유합용 케이지의 응력방패현상을 감소시키기 위하여 강성 차이에 대한 연구를 수행하였다. 최근 의료 임플란트 분야에서는 탄소섬유강화 폴리머를 이용하여 좋은 결과를 보여 왔다. 그러나 생체 역학적으로 이 재료에 대하여 요추체의 안정성과 골 이식재가 받는 응력에 관련한 연구는 없었다. 따라서 이전에 유효화한 요추체 (L2-L5) 비선형 유한 요소 모델을 이용하여 L4-L5 분절의 케이지의 강성 차이에 따른 효과를 알아보기 위하여 탄소섬유강화 폴리머와 티타늄 케이지를 이용한 후방 요추체 유합 모델을 만들었다. 자가골 보다 강성이 작은 탄소 섬유강화폴리머 케이지는 인접 분절의 하종판에 응력이 적게 걸리며, 골 이식재에 응력은 증가시켰다. 위의 결과로 탄소섬유강화 폴리머 케이지는 응력 방패 현상을 감소시킬 수 있을 뿐만 아니라 골 유합률을 증가시킬 수 있다.

• Journal of Korean Neurosurgical Society
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• 제53권5호
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• pp.269-273
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• 2013

Objective : Posture induced common peroneal nerve (CPN) palsy is usually produced during the prolonged squatting or habitual leg crossing while seated, especially in Asian culture and is manifested by the onset of foot drop. Because of its similarity to discogenic foot drop, patients may be diagnosed with a lumbar disc disorder, and in some patients, surgeons may perform unnecessary examinations and even spine surgery. The purpose of our study is to establish the clinical characteristics and diagnostic assessment of posture induced CPN palsy. Methods : From June 2008 to June 2012, a retrospective study was performed on 26 patients diagnosed with peroneal nerve palsy in neurophysiologic study among patients experiencing foot drop after maintaining a certain posture for a long time. Results : The inducing postures were squatting (14 patients), sitting cross-legged (6 patients), lying down (4 patients), walking and driving. The mean prolonged neural injury time was 124.2 minutes. The most common clinical presentation was foot drop and the most affected sensory area was dorsum of the foot with tingling sensation (14 patients), numbness (8 patients), and burning sensation (4 patients). The clinical improvement began after a mean 6 weeks, which is not related to neural injury times. Electrophysiology evaluation was performed after 2 weeks later and showed delayed CPN nerve conduction study (NCS) in 24 patients and deep peroneal nerve in 2 patients. Conclusion : We suggest that an awareness of these clinical characteristics and diagnostic assessment methods may help clinicians make a diagnosis of posture induced CPN palsy and preclude unnecessary studies or inappropriate treatment in foot drop patients.

• Journal of Korean Neurosurgical Society
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• 제52권5호
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• pp.491-494
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• 2012

We report a rare complication of iatrogenic spinal intradural following minimally invasive extradural endoscopic procedues in the lumbo-sacral spines. To our knowledge, intradural cyst following epiduroscopy has not been reported in the literature. A 65-year-old woman with back pain related with previous lumbar disc surgery underwent endoscopic epidural neuroplasty and nerve block, but her back pain much aggravated after this procedure. Postoperative magnetic resonance imaging revealed a large intradural cyst from S1-2 to L2-3 displacing the nerve roots anteriorly. On T1 and T2-weighted image, the signal within the cyst had the same intensity as cerebrospinal fluid. The patient underwent partial laminectomy of L5 and intradural exploration, and fenestration of the cystic wall was accomplished. During operation, the communication between the cyst and subarachnoid space was not identified, and the content of the cyst was the same as that of cerebrospinal fluid. Postoperatively, the pain attenuated immediately. Incidental durotomy which occurred during advancing the endoscope through epidural space may be the cause of formation of the intradural cyst. Intrdural cyst should be considered, if a patient complains of new symptoms such as aggravation of back pain after epiduroscopy. Surgical treatment, simple fenestration of the cyst may lead to improved outcome. All the procedures using epiduroscopy should be performed with caution.

• Journal of Korean Neurosurgical Society
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• 제56권1호
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• pp.21-27
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• 2014

Objective : Infectious spinal disease is regarded as an infection by a specific organism that affects the vertebral body, intervertebral disc and adjacent perivertebral soft tissue. Its incidence seems to be increasing as a result of larger proportion of the older patients with chronic debilitating disease, the rise of intravenous drug abuser, and the increase in spinal procedure and surgery. In Korea, studies assessing infectious spinal disease are rare and have not been addressed in recent times. The objectives of this study are to describe the epidemiology of all kind of spinal infectious disease and their clinical and microbiological characteristics as well as to assess the diagnostic methodology and the parameters related to the outcomes. Methods : A retrospective study was performed in all infectious spinal disease cases presenting from January 2005 to April 2010 to three tertiary teaching hospitals within a city of 1.5 million in Korea. Patient demographics, risk factors, clinical features, and outcomes were assessed. Risk factors entailed the presence of diabetes, chronic renal failure, liver cirrhosis, immunosuppressants, remote infection, underlying malignancy and previous spinal surgery or procedure. We comparatively analyzed the results between the groups of pyogenic and tuberculous spinal infection. SPSS version 14 statistical software was used to perform the analyses of the data. The threshold for statistical significance was established at p<0.05. Results : Ninety-two cases fulfilled the inclusion criteria and were reviewed. Overall, patients of tuberculous spinal infection (TSI) and pyogenic spinal infection (PSI) entailed 20 (21.7%) and 72 (78.3%) cases, respectively. A previous spinal surgery or procedure was the most commonly noted risk factor (39.1%), followed by diabetes (15.2%). The occurrence of both pyogenic and tuberculous spondylitis was predominant in the lumbar spine. Discs are more easily invaded in PSI. At initial presentation, white cell blood count and C-reactive protein levels were higher in PSI compared to TSI (p<0.05). Etiological agents were identified in 53.3%, and the most effective method for identification of etiological agents was tissue culture (50.0%). Staphyococcus aureus was the most commonly isolated infective agent associated with pyogenic spondylitis, followed by E. coli. Surgical treatment was performed in 31.5% of pyogenic spondylitis and in 35.0% of tuberculous spondylitis cases. Conclusion : Many previous studies in Korea usually reported that tuberculous spondylitis is the predominant infection. However, in our study, the number of pyogenic infection was 3 times greater than that of tuberculous spinal disease. Etiological agents were identified in a half of all infectious spinal disease. For better outcomes, we should try to identify the causative microorganism before antibiotic therapy and make every effort to improve the result of culture and biopsy.