B2C 온라인쇼핑에서 고객만족에 영향을 주는 특성요인과 고객충성도간의 관계연구

정기한(Ki-han Chung),고영도(Young-do Ko) 한국인터넷전자상거래학회 2007 인터넷전자상거래연구 Vol.7 No.4

The purpose of this paper is to identify the antecedents and consequents of customer satisfaction in B2C internet transactions. Shopping convenience, site design, informativeness, security, payment system, and communication are used as the factors affecting customer satisfaction. The repurchase and revisit intentions are used as the consequents of customer satisfaction. The results show that shopping convenience, informativeness, security, payment system, and communication affect significantly customer satisfaction and that customer satisfaction affects significantly repurchase and revisit intentions. The marketing implication is that the firms of B2C online should concentrate on enhancing customer loyalty through the management of site factors in B2C online transactions.

인터넷 전자상거래에서 재구매의도의 영향요인에 관한 연구

정기한(Ki Han Chung),고영도(Young Do Ko),신재익(Jae Ik Shin) 한국마케팅과학회 2006 한국마케팅과학회 학술대회 발표 논문집 Vol.- No.-

제한 절개를 통한 관혈적 정복 및 내고정술을 이용한 경골 Pilon 골절의 치료

강충남,김종오,김동욱,고영도,고상훈,유재두,황준호,Kang, Chung-Nam,Kim, Jong-Oh,Kim, Dong-Wook,Koh, Young-Do,Ko, Sang-Hun,Yoo, Jae-Doo,Hwang, Jun-Ho 대한족부족관절학회 1997 대한족부족관절학회지 Vol.1 No.2

저자들은 1993년 9월부터 1996년 5월까지 본원 정형외과에 입원하여 Pilon 골절로 치료받고 1년 이상 추시 가능하였던 19례(18명)를 대상으로 다음과 같은 결론을 얻었다. 1. Ovadia와 Beals의 분류상 제1형이 2례, 제2형이 3례, 제3형이 10례, 제4형이 1례, 제5형이 3례였고, 제3형이 53%로 가장 많았으며, 교통사고와 추락손상 등 고에너지 손상에 의한 골절이 16례로 전체의 약 84%를 차지하였다. 2. 손상의 정도가 비교적 적은 제1형과 제2형에서는 모두 양호 이상의 임상결과를 나타내었으며, 제4형과 5형에서는 손상의 정도가 심하고 이로인한 정확한 정복의 어려움으로 인해 보통 이하의 성적을 나타내었다. 3. 합병증은 외상후 관절염이 6례로 가장 많았으며 손상정도가 심한 3형 이상에서 정확한 정복이 이루어지지 않은 경우에 발생하였으며, 방사선학적 평가가 보통이하였던 제3형 3례에서 부정 유합이 발생하였으나 임상결과와의 연관성은 없었다. 4. 저자들은 제한된 관혈적 정복 및 내고정술로 연부조직의 합병증을 현격히 줄일 수 있었으며, 손상의 정도가 적고 정확한 정복이 가능한 경우, Pilon 골절의 좋은 치료 술식의 하나라고 사료된다. The tibial Pilon fracture, which is defined as a comminuted intraarticular fracture of the distal tibia, is difficult to manage because high axial compression and rotational forces to the ankle joint result in impaction, severe comminution, metaphyseal disruption and soft tissue damage. There are variable methods of treatment such as manipulation and cast, calcaneal traction and cast, external fixation, pin and plaster, limited open reduction and external fixation, and open reduction and rigid internal fixation. Though most of authors reported better result after a surgical treatment. than that of conservative treatment, many complications such as posttraumatic arthritis and soft tissue problem still remain troublesome. We have reviewed 19 cases of the tibial Pilon fractures in 18 patients which were treated with limited open reduction and internal fixation from September 1993 to May 1996. The results were as follows: 1. The fractures were classified into five types according to the system of Ovadia and Beals, and the most frequent type was type 3 (53%). The most common cause of injury was traffic accident (47%). 2. All of the cases of type 1 and 2, in which the injury of the ankle joint was less severe, revealed good or excellent clinical results. But in type 4 and 5, because the injury is much severe and accurate reduction is difficult, the clinical results were unsatisfaetory. 3. The most frequent complication was posttraumatic osteoarthritis, and which developed in second frequent complication, was developed m the three cases of type 3 in which the radiographic results were less than fair, but there were no correlation with the clinical results. 4. We could markedly reduce the complications related to the soft tissue problem of Pilon fracture by treatment with limited open reduction and internal fixation, and consider that this is a good method of treatment of Pilon fracture when the injury is less severe and accurate reduction is possible.

소아 대퇴골 원위부 외상 후 MRI로 발견된 잠재성 골병변

김동욱(Dong-Wook Kim),김종오(Jong-Oh Kim),윤여헌(Yeo-Heon Yun),고영도(Young-Do Ko),유재두(Jae-Doo You),오종건(Jong-Keon Oh),이철우(Churl-Woo Lee) 대한정형외과학회 2000 대한정형외과학회지 Vol.35 No.1

요추 추간판 탈출증의 수술적 치료의 예후인자에 관한 분석

강충남(Chung Nam Kang),김종오(Jong Oh Kim),김동욱(Dong Wook Kim),고영도(Young Do Koh),고상훈(Sang Hoon Ko),방한천(Han Cheon Bang) 대한정형외과학회 1997 대한정형외과학회지 Vol.32 No.4

신선아킬레스건 파열의 변형된 Lindholm씨 방법의 수술적 치험

강충남(Chung Nam Kang),김종오(Jong Oh Kim),김동욱(Dong Wook Kim),고영도(Young Do Koh),고상훈(Sang Hoon Ko),김성만(Seong Man Kim) 대한정형외과학회 1997 대한정형외과학회지 Vol.32 No.3

지연유합과 불유합에서 저신호 강도 초음파의 유용성

윤여헌,김종오,고영도,유재두,정준모,오종건,방한천,최창호,신명철 대한골절학회 2003 대한골절학회지 Vol.16 No.1

목 적 : 저 신호 강도 초음파를 이용한 지연유합과 불유합의 치료에 대한 유용성을 알아보고자 하였다. 대상 및 방법 : 2001년 7월부터 2002년 5월까지 본원에 내원한 지연유합 7례와 불유합 8례를 대상으로 5개월간 저 신호 강도 초음파로 치료하여 5개월후 골유합 여부를 알아 보았다. 결 과 : 총 15례 중 대퇴골 간부 2례, 경골 간부 1례, 상완골 간부 1례, 요골 1례의 지연유합에서 골유합을 얻었고 대퇴골 간부 불유합 3례에서 유합을 얻었다. 지연주합은 71%의 유합율을, 불유합은 37.5%의 유합율을 보였다. 결 론 : 저 신호 강도 초음파는 골유합을 촉진 시킬 수 있으며 지연유합에서 시도해 볼 만 하나 불유합 치료를 위해서는 보다 많은 연구가 필요 하다. Purpose : To evaluation of usefulness of low-intensity ultrasound for nonunion and delayed union. Materials and Methods : For 5 months, we treated 7 delayed union and 8 nonunion using low-intensity ultrasound. After 5 months, in checked X-ray AP and Lateral view, when cortical bridge formation was done, we through union. Results : In 7 delayed union, 5 cases-2 femur, tibia, humerus, radius were healed. In 8 nonunion, 3 femur nonunion were healed. Union rate was 71% in delayed union 37.5% in nonunion. Conclusion : we thought that the low-intensity ultrasound has capacity of induction of union and was considered as the method of treatment for delayed union.

노령에서 고관절 골절에 영향을 주는 수상전 요인

김종오,윤여헌,고영도,유재두,정준모,방한천,강규복 대한골절학회 2002 대한골절학회지 Vol.15 No.4

목 적 : 노령에서 고관절골절의 여러 원인적 요인들과 상관관계를 분석, 그 연관성에 대해 알아 보고자 하였다. 대상 및 방법 : 2001년 1월부터 2002년 5월까지 대퇴 고관절 골절로 본원에서 치료받은 환자중 60세 이상이고 골밀도 검사를 시행받은 158례를 대상으로, 수상전 요인을 나이, 성별, 흡연여부, 비만정도, 골절종류, 수상장소, 다른 이환 질환, 골절전 활동도, 골밀도 검사, 수상당시 바닥의 경도, 수상당시 넘어진 방향, 수상에너지에 따라 대퇴 경부골절과 전자간 골절, 전자간 골절중 안정골절과 불안정 골절로 나눠 비교하였다. 결 과 : 80세 이상의 군에서 대퇴 전자간 골절이 대퇴 경부 골절에 비해 의미있게 많이 발생했음을 알 수 잇었으며(p<0.001) 환자의 수상전 활동정도의 비교에서도 활동정도가 낮았던 군에서 대퇴 전자간 골절이 의미있게 많이 발생하였다(p<0.001). 골밀도 검사에 따른 비교에서는 T-score -3.0 이하인 군에서 대퇴 전자간 골절이 많았으며(p<0.005), 수상에너지에 따른 비교에서는 적은 에너지에 의한 골절이 전자간 골절에서 많았다(p<0.05). 대퇴 전자간 골절은 안정 골절과 비안정 골절로 나눈 비교에서는 사회 활동이 어려운 ADL C이하의 군과(p<0.05), 골밀도 T-score -3.0 이하인군에서는 의미있는 차이를 보였다(p<0.001). 결 론 : 노령에서의 고관절 골절 중 80세 이상의 고령에서, 골밀도 T-score -3.0 이하인 경우, 일상생활 활동정도가 낮은 경우에, 비교적 적은 에너지에 의한 충격시에 대퇴 전자간 골절의 발생이 대퇴 경부 골절에 비해 의미있게 많았고 전자간 골절에서 불안정 골절은 사회활동이 적고 골밀도 T-score -3.0 이하인 경우 많음을 알수 있었다. Purpose : We studied the co-relation on the causes of the hip fracture through the analysis of a relevance on the etiological factors as increased incidence according increasing old age. Materials and Methods : Total 158 cases that treated on the hip fracture from 2001 Jan. to 2002 May were studied. The parameters were age, gender, smoking, obesity, type of fracture, place of fracture, other comorbidity, activity of daily living, bone marrow densitometry, hardness of floor, orientation, injury energy. And then, we analysis of difference between femur neck fracture and femur intretrochanter fracture and between stable femur intertrochanter fracture and unstable femur intertrochanter fracture. Results : The incidence of the femoral intertrochanteric fracture was larger significantly than that of the femoral neck fracture in the older then 80(p<0.001). On the comparison of the pre-fractural activity of daily living, the group revealed lower activity had larger incidence of femoral intertrochateric fracture(p<0.001). Also, the femoral intertrochanteric fracture was more larger osteoporosis patient group(p<0.005), and lower energy trauma(p<0.05). In a unstable femoral intertrochanteric fracture, 21 cases(77.7%) of total 27 cases were belong to the group of the activity of daily living scale below C(p<0.05), 24 cases pf 27 cases were belong to the osteoporosis patient who was estimated below -3.0 on T-score(p<0.001). Conclusion : In the hip fracture of the elderly patients, the femoral intertrochanteric fracture is more prevalance ratherthe femoral neck fracture on the cases of older patient more than 80 year-old, lower activity of daily living scale, lower T-score less than -3.0 on BMD, lower energy trauma. Also, in femur intertrochanter fracture, unstable fracture is more common in low daily activity and owteoporosis.

상완골 근위부 고절의 치료로서 시행한 일차적 상완골두 치환술

김종오,고상훈,고영도,강충남 대한골절학회 1997 대한골절학회지 Vol.10 No.3

From 1993 to 1996, we have used hemiarthroplasty on shoulder for comminuted fracture and fracture-dislocation of proximal humerus. The study reviewed 8 patients with on average age 62.1 years. The hemiarthroplasty was performed at average 5 days following injury. The purpose of this study was to evaluate pain. function, range of motion, strength, patient' s satisfaction. All cases was performed using cement and surgical approach was deltopectoral. Average follow up was 33 months after operation(range, 24 to 45 months). According to UCLA shoulder rating scale, 5 patients(63%) were satisfactory and 3 patients(37%) were unsatisfactory. Average active flexion was I l0, and average abduction was 9T and average external rotation was 39, average internal rotation to the first lumbar unsatisfactory. Average humeral offset on fractured shoulder was 20.5 and average humeral offset on normal uninjured shoulder was 30.8. For functional improvement of shoulder hemiarthroplasty, We concluded humeral length restoration and humeral offset preservation is very crucial factors.

외상성 고관절 골절 및 탈구

김동욱,김종오,고상훈,고영도,강충남,유재두,엄주석,이동욱 대한골절학회 1997 대한골절학회지 Vol.10 No.4

Traumatic dislocation or fracture-dislocation of the hip is relatively uncommon, but high velocity accidents have increased its incidence in recent years. The purpose of this study was to review the result of the treatment and to evaluate the prognostic factor. We retroprospectively reviewed 28 patients with traumatic fracture-dislocation of the hip between October, 1993 and March, l996. 21 were males and 7 females. The mean age was 33.5 years (range, 11 to 67 years). Average follow-up was l 8 months ( range, 13 to 28 months ). Exellent or good results were obtained in l9 patients(68%) by the criteria of Epstein. The complications were followings: 2 cases of avascular necrosis and 1 case of osteoarthritis. Factors associated with a good prognosis included an early reduction, low level of initial trauma, abscence of associated injury.