지방자치단체의 재정효율성의 공간의존성에 관한 연구: 비교잣대경쟁이론의 실증적 검증

손종민,한지후,박지형 한국지방자치학회 2024 韓國地方自治學會報 Vol.36 No.1

비교잣대경쟁이론(Yardstick Competition Theory)은 지방정부간 경쟁을 유도하거나 성과를 비교할 때 사용되어진다. 이에 근거하여, 본 연구는 우리나라 기초자치단체의 재정효율성을 위한 재정성과를 향상시키는데 있어서 공간의존성, 즉 인접한 기초자치단체와의 상호작용을 통한 전략적 의사결정여부를 실증적으로 검증하고자 한다. 지방재정통합공개시스템에서 제공하는 지방재정운영효율성데이터를 2015년부터 2020년까지 공간더빈모형을 통하여 분석한 결과, 통합유동부채비율을 제외한 재정성과항목에서 인접한 기초자치단체간에 정(+)의 방향을 가지고 있는 것을 보였다. 통합유동부채의 경우 향후 지급의무가 있는 채무로써 성격이 있기 때문에 이는 각 기초자치단체별로 부채의 성격에 따라서 그 경쟁의 효과가 다르게 나타난다고 할 수 있다. The yardstick competition theory enhance competition between local governments by comparing performance. Followed by the yardstick competition theory, this study aims to empirically examine whether a local government (Si, Gun, and Gu in Korea) interacts with its contiguous ones to make a strategic decision, which depends on spatial dependence in order to improve its fiscal performance and efficiency. Employing the dataset of local financial operation efficiency in 2015-2020, retrived from the Local Finance Integrated Open System, the empirical findings through spatial Durbin regression analyses revealed that the fiscal performance among the contiguous local governments are associated in positive ways, except for the ratio of integrated current liabilities in local governments. Since integrated current liabilities are characterized as debts obligated to pay in the future, the nature of the liabilities/debts results in the various consequences for the decision of local governments.

일 병원에서 통원병실을 이용한 수술적 치료의 경험

손종민,하난경 한국의료QA학회 2001 한국의료질향상학회지 Vol.8 No.1

Background : in order to adapt to changes of the medical environm interests that is drawn in ambulatory surgery are increased as a method of approaching a patients’ satisfaction and cost-effective management. The purpose of this study is to a assess the operation which is able to perform through ambulatory care unit, to identify the problem in ambulatory surgery, and to increased the opportunity of ambulatory surgery with safety. Methods : Between May 13th, 1998 and June 30th, 2000, we performed surgical treatment through ambulatory care unit, and evaluate the results of them. The sorts of operation, duration of stay in the hospital, total cost of treatment, satisfaction of patients and safety if anesthesia were assessed. Results : We performed ambulatory surgery without serve complications and the patients were satisfied with surgical treatment through ambulatory care unit. In comparison of ambulatory and admission surgery, there was a reduction of cost to 16.7~25.3% in ambulatory surgery. Also, the duration of admission was 2 days shorter than admission surgery. Conclusions : According to our results, the surgical treatment through ambulatory care unit is safe and useful method that increase the quality of medical service, satisfaction of patients and reduce the cost of treatments.

이중 내측 활막추벽 증후군 - 1예 보고 -

손종민,장주해,하난경,조성태,황정택,Sohn, Jong-Min,Jang, Ju-Hae,Ha, Nan-Kyoung,Cho, Seong-Tae,Hwang, Jung-Taek 대한관절경학회 2006 대한관절경학회지 Vol.10 No.1

저자들은 우 슬관절에 발생한 이중 내측 활막추벽 증후군 환자를 경험하였기에 보고한다. 일반적으로 활막추벽 증후군은 전형적인 증상이나 통증이 없을수 있으며, 다양한 골관절 증상을 유발하는 다른 슬내장증의 원인들과 감별진단이 요구된다. 결정적인 진단에는 MRI와 관절경술이 필요하며, 증상이 있는 경우 관절경적 제거술에 의해 증상의 호전이 이루어진다고 보고된다. 본 환자는 앉거나 계단을 오를 때, 우 슬관절 동통을 호소하였고, MRI상 전형적인 이중 내측 활막추벽이 관찰되어 관절경적 절제술을 시행하였다. 술후 환자는 만족스러운 임상호전을 보였다. We present a case of double medial plica that developed on right knee joint. There has been no documented case of double medial plica of the knee joint. In a general way, double medial plica syndrome is very difficult to diagnose because it does rarely develop and symptoms are non-specific or not present. It is difficult to distinguish between pain originating from the medial plica and from other internal derangement of the knee. This patient had symptoms including aggravating right knee pain with sitting position or knee flexion for 3 months. We performed MRI and arthroscopy for more accurate diagnosis. MRI T1, T2 images showed typical double medial plica and we had performed arthroscopic excision of symptomatic medial plica in right knee joint. Arthroscopic resection provided satisfactory relief of symptom.lasting and satisfactory relieve of symptom.

관절경 수술시 발견된 반월상 연골판 손상과 관절연골 결손과의 상관관계

손종민,하난경,조성태,서영환 대한슬관절학회 2002 대한슬관절학회지 Vol.14 No.2

목적: 반월상 연골판 손상진단하에 슬관절 관절경 수술시 발견된 관절연골 결손의 임상적 의의와 그 상관관계를 알아보고자 한다. 대상 및 방법: 1997년 5월부터 2001년 12월까지 반월상 연골판 손상으로 본원 통원병실을 이용하여 전신 마취하에서 관절경 수술을 시행받은 환자중 전반적인 퇴행성 관절염이 심하게 진행되거나 단순방사선 촬영상 퇴행성 변화가 보인 환자를 제외한 252예를 대상으로 하였다. 모든 환자에서 이학적 검사, 단순 방사선 촬영, 자기공명 영상촬영 및 관절경 사진 촬영을 시행하였고 그 결과를 환자의 연령, 수상후 수술까지의 기간, 반월상 연골판 소산의 형태에 따라 비교분석 하였다. 결과: 반월상 연골판 손상 환자중 관절연골 결손은 40예(15.9%)에서 발견되었으며, 그 중 대퇴부 18예(45%), 경골부 10예(25%), 대퇴부 및 경골부 양측 12예(30%)로 대퇴부 측의 이환율이 경골부보다 높았다. 발병율에 있어서는 40세 이상 및 증상 발현후 수술까지 6개월 증상을 호소하였던 환자에서 현저하게 높았다. 또한 반월상 연골 후각부의 손상환자에서 관절연골 결손의 발병율이 가장 높았으며, 증상발현기간이 갈수록 나이가 많을수록 관련성이 높았다. 결론: 슬관절의 반월상 연골판 손상환자에서 나이가 많을수록, 증상발현이 갈수록, 후각부의손상일수록 관절 연골 결손같은 퇴행성 변화의 발병율이 높기 때문에 각별한 주의를 요하며 연골판 손상의 조기치료등 적극적인 치료가 필요하다. Purpose: We studied to know the relationship between meniscal injury & defect of articular cartilage and its clinical importance. Materials & methods: 252 patients were selected, who undergone arthroscopic surgery for meniscal injury from May 1997 to December 2001. We excluded patients with severely progressed osteoarthritis of degenerative changes in simple X-ray. Physical examinations, simple X-rays, MRI & arthroscopic photographs were taken for all patients. And the results were analyzed according to age, duration from accident to operation and type of meniscal injury. Results: 40 cases (15.9%) showed defects of articular cartilage with meniscal injury. Among them, 18 cases (45%) in femur, 10 cases (25%) in tibia, and 12 cases (30%) in both. Incidence of articular cartilage defect was significantly higher in patients over the age of forty (p<0.01) and in those with a history longer than six months (p<0.05). Posterior horn tears were associated with the highest incidence of articular cartilage defect, but were also associated with a longer history and with older patients. Conclusion: In patients with meniscal injury, older age, long duration of symptom and tear at posterior horn have higher incidence of articular cartilage defect, especially femoral condyle. The reason for this is not entirely clear but these patients need close attention and early treatment.

외상과 비외상에 의한 슬관절 반월상 연골의 파열 형태

손종민,김형관,장주해,최문구,문찬웅,Sohn, Jong-Min,Kim, Hyoung-Gwan,Jahng, Ju-Hae,Choi, Moon-Ku,Moon, Chan-Woong 대한관절경학회 1998 대한관절경학회지 Vol.2 No.2

We reviewed the charts and photos taken during arthroscpy of 218 knees of 214 patients(240 menisci) retrospectively. The male was 156 cases(73%) and the female 58 cases(27%). The mean age of the patients was 35 years(range, 7-68). The patients who had definite trauma history were classified as trauma group(Group 1), and the patients who had no or could not recall trauma history were as atrauma group(Group 2). The trauma group was subclassified into the the patients with sports injury, traffic accident, fall down, slip down, direct injury, and miscellaneous according to the causes of the trauma. The patterns of meniscal tear were classified into longitudinal, bucket-handle, horizontal, transverse, flap, complex, and degenerative tear on the basis of O'Connor's classification. The aim of this study was to compare the meniscal tear patterns between trauma group(Group 1) and atrauma group(Group 2) and between the patients before and after the age of 40. The results were as follows ; 1) The difference in the incidence of tear between medial and lateral meniscus was not significant statistically. 2) In Group 1, 60% of the cases showed the longitudinal and bucket-handle tear and 52% of the cases of Group 2 were horizontal tear. 3) In the patients before the age of 40, the longitudinal and bucket-handle tear were 52% of the cases and in the patients over 40, tear patterns which were thought to be related to degenerative change, horizontal and degenerative tear were more than half of the cases (51%).

전단 가공에서 제품 전단면의 크기에 변화에 관한 연구

손종민,이희주,조기흠,신성은,김세환,이춘규,Son, Jong-Min,Lee, Hui-Ju,Cho, Gi-Heum,Shin, Seong-Eun,Kim, Sei-Whan,Lee, Chun-Kyu 한국금형공학회 2017 한국금형공학회지 Vol.11 No.1

Burrs generated during shear forming such as notching and piercing may cause lifting during product assembly, which may deteriorate the productivity and quality of products. In this study, various shear angles and variable clearances between the punch and the die were applied in experimental notching tests to investigate the shear fracture surface and the burr height due to various conditions. The experimental results show that the clearance has the greatest effect on shear and fracture surfaces. It is considered that the height of the shear section increases slightly as the shear angle increases.

원형포밍 성형 시 크랙 발생 최소화 방안에 관한 연구

손종민,김세환,이춘규,Son, Jong-Min,Kim, Sei-Whan,Lee, Chun-Kyu 한국금형공학회 2016 한국금형공학회지 Vol.10 No.3

Foaming is a step of forming by the ratio of the internal combustion chamber in a state where the in flow of the material is suppressed, if the diameter is small and a high to a crack generated on the molding is not possible. The present study, we studied using as part experiments for forming the circular shape of the forming height of 10 mm without the occurrence of cracks, results preformed primary, the need to set the height of the forming than the height of the product, preformed secondary. It was able to increase the height of the molded product with less than the height of the next step to be carried out compression processing to create a small comer of the desired shape. In addition, it was found that on a great influence on the quality of the final quality on the final molding of the primary preformed, secondary.

제조업의 지속 가능한 제품-서비스 시스템 개발 전략 연구

손종민,이현찬 한국경영과학회 2010 한국경영과학회 학술대회논문집 Vol.2010 No.6

제조업의 지속 가능한 제품-서비스 시스템 개발 전략 연구

손종민,이현찬 대한산업공학회 2010 대한산업공학회 춘계학술대회논문집 Vol.2010 No.6

진행성 골다공증성 척추골절의 위험인자

손종민,하기용,김기원,하난경,김영훈,김주환 대한척추외과학회 2009 대한척추외과학회지 Vol.16 No.3

Study Design: Retrospective risk-factor analysis Objectives: This study investigated the clinical and radiological risk factors associated with the progression of osteoporotic spinal fractures (OSFs) after conservative treatment. Summary of Literature Review: Nonunion and cleft signs on radiographs are strongly associated with complicated osteoporotic spinal fractures. Materials and Methods: From Jan. 2005 to Dec. 2007, 84 patients (15 males and 69 females; mean 72.6 yrs) were enrolled in this retrospective review. The progressive OSF, clinical and radiological factors were analyzed considering the progression of the kyphotic angle (PKA>20˚) and the presence of intravertebral cleft signs (IVC). Age, gender, body mass index, vertebral level involved, BMD score, MRI classification and initial kyphotic angle were adopted for the analysis. For statistical analysis, a chisquare test was performed to analyze the relationship between each factor and multiple logistic regression analysis was performed to analyze the multifactorial explanatory factor. Results: The presence of IVC was related to the thoracolumbar fracture, mid-portion MR classification and high body mass index. PKA>20˚was related to the thoracolumbar fracture and mid-portion classification. For multifactorial analysis using these seven factors, two factors (the level of fracture and MR classification) were found to be associated with the presence of IVC with statistical significance. In the thoracolumbar fracture, the incidence of IVC was 5.2 times higher than the other levels. The incidence of IVC in endplate classification was 16% lower than in the mid-portion. Conclusion: BMI, the fracture level involved and MR classification were associated with the development of IVC and PKA>20˚ for a conservative treatment of OSF. Multiple logistic analysis revealed the level of the fracture and MR classification to be significant. 연구계획: 후향적 위험인자 연구 연구목적: 골다공증성 척추 골절에서 진행성 또는 합병증이 발생하는 골절과 관련이 있는 임상적, 방사선학적 위험 인자에 대하여 분석하고자 하였다. 대상 및 방법: 2005년 1월부터 2007년 12월까지 골다공증성 척추 골절로 진단되어 보존적 치료로 치료한 84예를 대 상으로 하였다. 평균연령은 72.6세 (51-92) 이었으며, 남자 15예 여자 69예이었다. 진행성 골절의 기준은 국소후만각 의 20도 이상증가 (progression of kyphotic angle, PKA>20˚) 및 수상 후 3개월 내 앙와위 정면 및 측면 방사선 상 척추체 내 공기음영 (intravertebral cleft, IVC)이 확인되는 경우로 정의하였으며, 임상적 방사선학적 요인으로 성별, 연령, 체 질량지수, 골절부위, 골밀도, MRI분류 및 최초 국소 후만각을 측정하여 PKA>20˚및 IVC(+)의 발생에 대하여 각각의 요인과 교차분석을 실시하였으며, 여러 요인에 상호작용에 대한 다변량 분석으로 로지스틱 회귀분석을 실시하여 위 험인자와의 관련성을 평가하였다. 결과: IVC(+)인 군 (n=21, 25%)과 각각의 요인과 교차분석 상 의미 있는 요소는 흉요추부의 골절, 추체 중간부형 음영 변화 (OR 6.19, 95% CI 1.66-23.15) 및 BMI>23.0이상 (OR 1.88, 95% CI 1.43-2.46) 이었다. PKA>20˚(n=44, 52.4%)는 흉 요추부 골절 및 추체 중간부형 음영변화 (OR 2.91, 95% CI 1.19-7.16)에서 통계적 의미 있는 차이를 나타냈다. 이들의 요소를 함께 고려한 다변량 분석에서는 흉요추부 골절에서 IVC 발생율이 5.2배 높았으며 (95% CI 1.08-25.21), MRI 음영상 종판형 음영변화 시 발생율이 16% 낮았다 (95% CI 0.33-0.75). 결론: 골다공증성 척추 골절의 보존적 치료에 있어서 PKA 20도 이상과 IVC 발생과 관련이 있는 요소는 BMI, 골절위 치 및 MRI 분류이었으며, 다변량 분석에 있어서 통계적 의미가 있는 위험 요소는 골절의 위치와 MRI 분류였다.