반대측 경구상추경접근법에 의한 전방경유 경추 신경공 감압술 및 유합 : 전보적 미세수술기법 An advancing microsurgical technique

문병관,김주승 凡石學術奬學財團 1999 凡石學術論文集 Vol.3 No.-

Field Intercomparison and Calibration of Net Radiometers

문병관,류상범,윤용훈,임종환,김준 한국농림기상학회 2003 한국농림기상학회지 Vol.5 No.2

Net radiation (Rn) is one of the most fundamental components in surface energy budget. For an accuratemeasurement of Rn, periodic and consistent calibrations of net radiometers are required. With a 4-monthtime interval, two field experiments were conducted to inter-compare and calibrate two types of netradiometers (the Q-7.1 and the CNR1), widely used in flux measurements. Diferences between the Q-7.1and the CNR1 net radiometers were within 7.7%, and the erors after calibration against the standard netradiometer were <3.2%. Radiometric responses and calibration factors appeared to have changed withsky conditions, especially temperature difference with seasons progres. We concluded that theperiodicaly calibrated Q-7.1 can replace more expensive, more acurate CNR1 net radiometer for long-term field measurements, providing that field calibrations of net radiometers are performed every 4 - 6months interval.

The Comparative Study for Clinical and Radiologic Results of Unilateral Kyphoplasty and Bilateral Vertebroplasty

문병관 대한척추신경외과학회 2010 Neurospine Vol.7 No.4

Objective: To elucidate postoperative clinical and radiologic efficacy of unilateral kyphoplasty compared for percutaneous bilateral vertebroplasty. Methods: One hundred patients with osteoporotic compression fracture at thoracolumbar junction were enrolled in this study. The kyphotic angle and reduction rate were measured to evaluate the vertebral restoration. Visual analog scale(VAS) for pain and short form-36(SF-36) and Oswestry Disability Index(ODI) for functional outcome were recorded by 1 year pos- toperatively. Cement extravasation and adjacent vertebral fractures were monitored. Results: Visual analog scale for pain was not statistically different through the follow up in both groups(p=0.38). The preo- perative SF-36 and ODI scores were similar(p>0.05) but the difference in ODI score and standardized physical component scale reached statistical significance(p=0.04, p=0.03) and unilateral kyphoplasty group was getting better functional status. Reduction rate of vertebral body was 42.5±7.8% for the vertebroplasty group and 66.3±8.1% for the unilateral kyphoplasty group(p<0.001) and loss of reduction was 4.5±3.5% and 1.7±2.5%(p<0.0001) respectively. There were six complications of cement extraosseous leakage into the spinal canal in vertebroplasty only. Conclusion: Unilateral kyphoplasty in compare with vertebroplasty is safer for cement leakage and immediately reduces back pain and restore kyphotic deformities in addition to the prevention of subsequent compression fracture. Objective: To elucidate postoperative clinical and radiologic efficacy of unilateral kyphoplasty compared for percutaneous bilateral vertebroplasty. Methods: One hundred patients with osteoporotic compression fracture at thoracolumbar junction were enrolled in this study. The kyphotic angle and reduction rate were measured to evaluate the vertebral restoration. Visual analog scale(VAS) for pain and short form-36(SF-36) and Oswestry Disability Index(ODI) for functional outcome were recorded by 1 year pos- toperatively. Cement extravasation and adjacent vertebral fractures were monitored. Results: Visual analog scale for pain was not statistically different through the follow up in both groups(p=0.38). The preo- perative SF-36 and ODI scores were similar(p>0.05) but the difference in ODI score and standardized physical component scale reached statistical significance(p=0.04, p=0.03) and unilateral kyphoplasty group was getting better functional status. Reduction rate of vertebral body was 42.5±7.8% for the vertebroplasty group and 66.3±8.1% for the unilateral kyphoplasty group(p<0.001) and loss of reduction was 4.5±3.5% and 1.7±2.5%(p<0.0001) respectively. There were six complications of cement extraosseous leakage into the spinal canal in vertebroplasty only. Conclusion: Unilateral kyphoplasty in compare with vertebroplasty is safer for cement leakage and immediately reduces back pain and restore kyphotic deformities in addition to the prevention of subsequent compression fracture.

재발된 요추 추간판 탈출증에 대한 임상적 분석

문병관,오성훈,김영수,고용,오석전,김남규,김광명 대한신경외과학회 1994 Journal of Korean neurosurgical society Vol.23 No.1

Recurrent lumbar disc herniation after standard lumbar discectomy was the most common complication among the failed back surgery syndrome. Clinical manifestations and radiologic findings were analyzed in 56 patients who were proved to have recurrent lumbar disc herniation. Comparative analysis with Lumbar Disc Surgery Predictive Score(LDSPS) between 160 patients of failed backsurgery syndrome and 56 patients of recurrent disc herniation was performed. LDSPS of the recurrent disc herniation was 81.3. The interval of the reoperation after onset of symptom was considered to be one of the major factors in the prognosis of the recurrent disc herniation. The patient must be educated how to prevent recurrent lumbar disc herniation. When recurrency was suspected one must diagnose precisely with the help of MRI and reoperate as soon as possible.

신경낭미충증의 치료후 예후를 결정하기 위한 ELISA의 역활

문병관,김남규,김영수,고용,오성훈,오석전,김광명 대한신경외과학회 1994 Journal of Korean neurosurgical society Vol.23 No.2

The diagnosis of neurocysticercosis is relatively easy with brain computed tomography(CT) and/or magnetic resonance imaging(MRI) and ELISA test of serum and cerebrospinal fluid(CSF). The clinical manifestation of the disease are varied and correlated with the infection sites. The use of praziquantel and/or surgical excision are effective in treatment of the disease. The effect of treatment has been evaluated with imaging studies and changes of clinical manifestation. The authors reviewed 97 neurocysticercosis patients to evaluate the prognostic predictability of serum and CSF ELISA titers after treatment. We classified the patients into two groups. Rebound group was patients which showed higher ELISA titers after treatment were lower than those of pretreatment. The responses to treatment were evaluated with the changes on brain CT or MRI. The initial ELISA titer were lower in rebound group than those of nonrebound group, but three months after treatment, rebound group showed higher titers. The changes of ELISA titers in rebound group were greater in CSF than those in serum. The reduction of cyst on brain CT or MRI was more remarkable in rebound group than in nonrebound group and the prognosis of rebound group was better. Changes of ELISA titer was valuable in predicting the effect of treatment and prognosis.

안면도 지구대기감시 관측소에서의 순복사 비교 관측과 복사계 보정

문병관,김준,류상범,윤용훈,임종환 한국기상학회 2001 대기 Vol.11 No.1

CO₂and Energy Exchange in a Rice Paddy for the Growing Season of 2002 in Hari, Korea

문병관,홍진규,이병렬,윤진일,박은우,김준 한국농림기상학회 2003 한국농림기상학회지 Vol.5 No.2

Rice, which occupies about 60% of the farmland in Korea, is a staple crop in Asia. It not only absorbs CO2from the atmosphere, but also emits carbon in a form of CH4. It has a potential role in the global budgetof greenhouse gases because of its relative contributions of carbon absorption and emission associated withchanging hydrologic cycle. To beter understand its current and future role, seasonal variations of energyand CO2 exchange in this critical ecosystem need to be quantified. The purpose of this study was tomeasure, document and understand the exchange of energy and CO2 in a typical rice paddy in Koreathroughout the whole growing season. Since late April of 2002, we have conducted measurements ofenergy and CO2 exchange in a rural rice paddy at Hari site, one of the Korea regional network oftower flux measurement (KoFlux). After the quality control and gap-filling, the observed fluxeswere analyzed in the context of micrometeorology and biophysics. CO2 and energy exchanges variedsignificantly with land cover changes (e.g., plant growth stages), in addition to changes in weatherand climate conditions. This study, reporting first direct measurement of energy and CO2 exchangeover a rice paddy in Korea, would serve as a useful database as one of the reference sites in AsiaFluxand FLUXNET.

소형 플레이트로 보강한 인장 띠형 후궁 성형술

문병관,김주승 凡石學術奬學財團 2001 凡石學術論文集 Vol.- No.5

복사 수지 관측을 위한 복사계 야외 보정 실험

문병관,김준 한국기상학회 2001 대기 Vol.11 No.3

가상상점 활용의 영향 요인에 관한 연구

양광민,문병관 中央大學校 經營硏究所 1999 經營學論集 Vol.25 No.2