• Journal of Korean Neurosurgical Society
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• 제63권6호
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• pp.777-783
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• 2020

Objective : To compare the accuracy and breach rates of freehand (FH) versus navigated (NV) pedicle screws in the thoracic and lumbar spine in patients with metastatic spinal tumors. Methods : A retrospective review of adult patients who underwent pedicle screw fixation in the thoracic or lumbar spine for metastatic spinal tumors between 2012 and 2018 was conducted. Breaches were assessed based on the Gertzbein and Robbins classification and only screws placed >4 mm outside of the pedicle wall (lateral or medial) were considered breached. Results : A total of 62 patients received 547 pedicle screws (average 8 per patient) - 34 patients received 298 pedicle screws in the FH group and 28 patients received 249 screws in the NV group. There were 40/547 breaches, corresponding to a breach and accuracy rate of 7.3% and 92.7%, respectively. The breach rate was 9.7% in the FH group and 4.4% in the NV group (chi-squared test, p=0.017); this corresponded to an accuracy rate of 90.3% and 95.6%, respectively. Only one patient from the overall cohort (in the FH group) required revision surgery due to a medial breach abutting the spinal cord (1.6% of all patients; 2.9% of FH patients); no patient suffered organ, vessel, or neurological injury from screw breaches. Conclusion : Navigated pedicle screw placement in patients with metastatic spinal tumors has a significantly higher radiographic accuracy compared to the FH technique. However, the revision surgery was low and no patient suffered from clinically-relevant breach. Navigation also offers the advantage of real-time localization of spinal tumors and aids in targeting and resection of these lesions.

• 대한핵의학회지
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• 제38권6호
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• pp.522-527
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• 2004

목적 : 본 연구는 골다공증에 의한 척추 골절 환자를 대상으로 골SPECT를 시행하고 골 섭취 증가 병변의 형태와 분포를 분석하여, 척추 골절에서 골SPECT의 유용성을 알아보고자 하였다. 대상 및 방법: 골다공증에 의한 척추 골절이 있었던 32명의 환자를 대상으로 하였다. 평균 연령은 $67{\pm}8$세였으며, 남자 5명, 여자 27명이었다. 79개의 척추골절이 발견되었으며, 병소는 흉부 및 흉요추부 척추가 38개, 요추부 척추가 41개였다. 척추체의 골절 형태는 압박 형태에 따라 쐐기형, 양요형, 압박형으로 분류하였고, SPECT 상 척추체의 골 섭취 증가 병변은 국소성 혹은 미만성, 대칭성 혹은 비대칭성으로 분류하였다. 척추 후방부의 SPECT 소견은 척추경, 척추 후관절, 관절간부, 극상 돌기의 골섭취 증가 병변 유무로 분류하였다. 척추체 골절 형태와 골절 척추의 위치에 따른 골 SPECT소견에 차이가 있는지를 분석하였다. 결과: 79개의 척추제 압박 골절 중 쐐기형 병소가 47개, 양요형 병소가 20개, 압박형 병소가 12개이었다. 골 SPECT에서는 척추체의 섭취 증가가 모든 예에서 관찰되었으며, 골절의 형태와 관계없이 국소형 보다는 미만형이, 대칭성 보다는 비대칭성 골 섭취 증가가 많았다. 척추 후방부에 병소가 발견된 경우는 69개(87.3%) 였으며, 쐐기형이 40개(85.1%), 양요형 17개(85.0%), 압축형 12개(100%)에서 관찰되었다. 흉부 및 흉요추부 척추에서는 쐐기형 골절이 많은 반면, 요추부 척추에서는 골절형태 분포가 비교적 균일한 것으로 나타났다(p=0.04). 극상돌기의 골섭취는 흉부 및 흉요추부 골절의 5예(13.2%)에서 있었던 반면 요추부 척추 골절에서는 16개(39.0%)에서 발견되어 분포의 차이가 있었다(p=0.009). 요추부 척추에서 발생한 양요형 골절에서 척추 후관절에 골 섭취 증가를 보인 경우가 12개(92.3%)인데 반해 흉부 및 흉요추부 척추에 발생한 경우 4개(57.1%) 에서만 골섭취 증가 병변이 있었다. 극상돌기의 골섭취에도 차이가 있어서 요추가 8개(38.5%)인데 비해 흉부 및 흉요추부 척추에서는 1개(14.3%)에서만 골섭취가 있었다(p=0.043). 결론: 골SPECT는 골다공증에 의한 척추 골절 진단에 유용하며, 특히 척추 후방부의 골 섭취 증가 병변의 평가에 유용하였다.

• Journal of Korean Neurosurgical Society
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• 제56권2호
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• pp.108-113
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• 2014

Objective : Ankylosing spondylitis is an inflammatory rheumatic disease mainly affecting the axial skeleton. The rigid spine may secondarily develop osteoporosis, further increasing the risk of spinal fracture. In this study, we reviewed fractures in patients with ankylosing spondylitis that had been clinically diagnosed to better define the mechanism of injury, associated neurological deficit, predisposing factors, and management strategies. Methods : Between January 2003 and December 2013, 12 patients with 13 fractures with neurological complications were treated. Neuroimaging evaluation was obtained in all patients by using plain radiography, CT scan, and MR imaging. The ASIA Impairment Scale was used in order to evaluate the neurologic status of the patients. Management was based on the presence or absence of spinal instability. Results : A total of 9 cervical and 4 thoracolumbar fractures were identified in a review of patients in whom ankylosing spondylitis had been diagnosed. Of these, 7 fractures were associated with a hyperextension mechanism. 10 cases resulted in a fracture by minor trauma. Posttraumatic neurological deficits were demonstrated in 11 cases and neurological improvement after surgery was observed in 5 of these cases. Conclusions : Patients with ankylosing spondylitis are highly susceptible to spinal fracture and spinal cord injury even after only mild trauma. Initial CT or MR imaging of the whole spine is recommended even if the patient's symptoms are mild. The patient should also have early surgical stabilization to correct spinal deformity and avoid worsening of the patient's neurological status.

• Journal of Korean Neurosurgical Society
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• 제46권1호
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• pp.65-67
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• 2009

The authors report two cases of spontaneous regression of disc herniation at the level adjacent to the anterior lumbar interbody fusion (ALIF) level. This phenomenon may be due to the increased tension on the posterior longitudinal ligament (PLL) by appropriate restoration of the disc height and lumbar lordosis, which is a mechanism similar to ligamentotaxis applied to the thoracolumbar burst fracture.

• Journal of Korean Neurosurgical Society
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• 제40권1호
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• pp.54-57
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• 2006

Central nervous system[CNS] involvement of acute lymphoblastic leukemia may occur. However, CNS involvement as a first manifestation of leukemia is very rare. An 8-year-old girl complained of a backache after playing in the water. Neurological examination detected progressing paraparesis. Magnetic resonance imaging[MRI] of the thoracolumbar spine showed a well-circumscribed homogeneous posterior extradural mass lesion extending from T7 to T9. MRI of the brain showed diffused fatty marrow replacement of the calvarium and the skull base. We report a patient with epidural Burkitt's lymphoma of the thoracic and lumbar vertebra causing compression of the spinal cord after pathologic evaluation. The tumor consisted mainly of lymphoblastic cells, which were identical to those originally seen in the bone marrow aspiration and biopsy. After decompressive laminectomy she began consolidation chemotherapy.

• Journal of Korean Neurosurgical Society
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• 제45권2호
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• pp.122-126
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• 2009

Single-balloon kyphoplasty via an extrapedicular approach has been reported to be effective because it requires less time than conventional two-balloon kyphoplasty and has comparable therapeutic efficacy. However, single-balloon kyphoplasty is not popular because the extrapedicular approach is believed to be complicated and unsuitable for the thoracolumbar and lumbar spine. The authors describe a standardized surgical technique that utilizes a far-lateral extrapedicular approach for single-balloon kyphoplasty, which can be performed in any part of the spine by physicians without substantial difficulty.

• 대한한방체열의학회지
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• 제9권1호
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• pp.51-56
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• 2011

Purpose : The purpose of this study is to report the comparison of X-ray and Digital Infrared Thermographic Imaging (DITI) of a patient with idiopathic scoliosis. Method: The patient in this case was a 25-year-old female. Her chief complaint was a pain in lumbar, scapular and shoulder regions. We examined her with DITI and X-ray. And then We compared DITI and X-ray. Results: Cobb's angle of thoracic spine was $24.78^{\circ}$ as a primary curve. Cobb's angle of thoracolumbar spine was $17.63^{\circ}$. Temperature on convex side of the thoracic spine was $0.3^{\circ}C$ higher than the other side. Temperature on convex side of cervical spine was $1.4^{\circ}C$ higher than the other side. There was no correlation curvature degree with temperature difference. Conclusion : There was a tendency that the temperature on convex side of the spine is higher than the other side of the spine. DITI is a useful assessment tool when it is used with X-ray as a diagnostic tool of idiopathic scoliosis. Further studies are needed.

• 대한척추외과학회지
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• 제25권4호
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• pp.169-174
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• 2018

연구계획: 증례 보고 목적: 신경인성 종양과 유사한 흉요추부의 경막외 해면상 혈관종 환자를 보고하고자 한다. 선행 연구문헌의 요약: 뼈에 침습이 없는 경막외 해면상 혈관종은 매우 드문 질환으로 제한된 문헌 보고만이 존재한다. 대상 및 방법: 53세 여자 환자가 내원 한달여 전부터 시작된 좌측 하지의 감각저하를 동반한 저린 느낌을 주소로 내원하였다. 내원시 시행한 신경학적 검진에서 기타 다른 신경학적 이상 소견은 관찰되지 않았다. 자기공명영상에서는 흉추 11-12번간 좌측 추간공에 $2{\times}0.5cm$ 크기의 종괴가 관찰되었다. 수술을 시행하여 이를 완전 적출하였다. 결과: 병리 검사에서 해면상 혈관종이 확진되었다. 수술 부위의 약한 통증을 제외하고, 추적 관찰 2년동안 추가적인 신경학적인 증상 발생 없이 좋은 결과를 보였다. 수술 후 2년째에 촬영한 MRI에서 종양의 재발 소견은 관찰되지 않았다. 결론: 척추의 경막외 해면상 혈관종은 매우 드문 질환이며, 다른 경막외 병변들과 감별하기는 쉽지 않다. 그러나, 수술적 치료의 좋은 예후를 보이는 점을 감안하면, 경막외 병변의 감별진단시 이를 반드시 고려해야 할 것으로 생각한다.

• Journal of Korean Neurosurgical Society
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• 제41권1호
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• pp.1-6
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• 2007

Objective : The purpose of this study is to determine the factors that have effects on the neurological deficit in the patients with thoracolumbar fracture. Methods : Forty-eight patients were included. Cause of injury, type of injury, time interval, combined injury, kyphotic angle, spinal canal compromise, sagittal diameter, the most narrow sagittal diameter, transverse diameter, the most narrow transverse diameter, and remained height of vertebra body were concerned as the factors. The patients with American Spinal Injury Association[ASIA] impairment scale grade A to D were considered as having neurology while others with ASIA grade E were considered to be without neurology. The patients with ASIA grade A were classified to paraplegia group and the patients with ASIA grade B to E were not thought to be paraplegia. Statistical analysis for these groups were performed. Results : Spinal canal compromise [P<0.001] have correlation with neurological deficit. The most narrow sagittal diameter was smaller in the group with deficit than that in the group without deficit [P<0.004]. Also, combined injury have correlation with neurology [P=0.028]. Spinal canal compromise [P<0.001], sagittal diameter [P=0.032], the most narrow sagittal diameter [P=0.025], and Denis type [P<0.001] also have correlation with paraplegia. Conclusion : The factors of percentage of spinal canal compromise, the most narrow sagittal diameter, and combined injury are predictive of neurological deficit. The patients with paraplegia may be predicted by the factors such as type of injury, spinal canal compromise, sagittal diameter, the most narrow sagittal diameter, and Denis type.

• Journal of Korean Neurosurgical Society
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• 제63권6호
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• pp.794-805
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• 2020

Objective : Teriparatide is known as an effective anabolic agent not only for severe osteoporosis but also for bone healing and union. We explored the possibility of teriparatide as an alternative treatment option for osteoporotic thoracolumbar (TL) burst fracture. Methods : This retrospective study enrolled 35 female patients with mean age of 73.77±6.71 years (61-88) diagnosed as osteoporotic TL burst fracture with ≥4 of thoracolumbar injury classification and severity (TLICS) score and no neurological deficits. All patients were treated by teriparatide only (12 of group A), teriparatide plus vertebroplasty (12 of group B), or surgical fixation with fusion (11 of group C), and followed up for 12 months. Radiological outcomes were evaluated using radiological parameters including kyphotic angle (KA), segmental vertebral kyphotic angle (SVKA), compression ratio (CR), and vertebral body height (anterior [AH], middle [MH], posterior [PH]). Functional outcomes were evaluated using visual analog scale (VAS) and Macnab classification (MC). Results : There were no statistical significant differences in age, bone mineral density (-3.36±0.73), and TLICS score (4.34±0.48) among the three groups (p>0.05). Teriparatide was administered during 8.63±2.32 months in group A and B. In 12-month radiological outcomes, there were significant restoration in SVKA, CR, AH, and MH of group B and KA, SVKA, CR, AH, and MH of group C compared to group A with no radiological changes (p<0.05). All groups showed similar significant improvements in 12-month functional outcomes, although group B and C showed a better 1-month VAS, 1-month MC, 3-month MC compared to group A (p<0.05). Conclusion : Non-surgical treatment with teriparatide showed similar 12-month functional outcomes compared to surgical fixation with fusion. The additional vertebroplasty to teriparatide and surgical fixation with fusion were more helpful to improve short-term functional outcomes with structural restoration compared to teriparatide only.