내측도달법에 의한 소아 상완골 과상부 골절의 치료

김종관(Chong-Kwan Kim),안병우(Byung-Woo Ahn),안택진(Teak-Jin Ahn),홍성준(Sung-Jun Hong) 대한정형외과학회 1995 대한정형외과학회지 Vol.30 No.1

근위 대퇴정을 이용한 대퇴골 전자간 골절의 치료

김종관 ( Chong Kwan Kim ),진진우 ( Jin Woo Jin ),안병우 ( Byung Woo Ahn ),윤종호 ( Jong Ho Yoon ),권영일 ( Young Il Kwon ),김동욱 ( Dong Wook Kim ),박찬완 ( Chan Wan Park ) 대한고관절학회 2005 Hip and Pelvis Vol.17 No.2

재생된 골에 식립한 넓은 직경의 나사형 임플란트에 대한 유한요소법적 분석

김수관(Su-Gwan Kim),김재덕(Jae-Duk Kim),김종관(Chong-Kwan Kim),김병옥(Byung-Ock Kim) 대한구강악안면외과학회 2005 대한구강악안면외과학회지 Vol.31 No.3

The purpose of this study was to investigate the distribution of stress within the regenerated bone surrounding the implant using three dimensional finite element stress analysis method. Using ANSYS software revision 6.0 (IronCAD LLC, USA), a program was written to generate a model simulating a cylindrical block section of the mandible 20 mm in height and 10 mm in diameter. The 5.0 × 11.5-mm screw implant (3i, USA) was used for this study, and was assumed to be 100% osseointegrated. And it was restored with gold crown with resin filling at the central fossa area. The implant was surrounded by the regenerated type IV bone, with 4 mm in width and 7 mm apical to the platform of implant in length. And the regenerated bone was surrounded by type I, type II, and type III bone, respectively. The present study used a fine grid model incorporating elements between 250,820 and 352,494 and nodal points between 47,978 and 67,471. A load of 200N was applied at the 3 points on occlusal surfaces of the restoration, the central fossa, outside point of the central fossa with resin filling into screw hole, and the functional cusp, at a 0 degree angle to the vertical axis of the implant, respectively. The results were as follows: 1. The stress distribution in the regenerated bone-implant interface was highly dependent on both the density of the native bone surrounding the regenerated bone and the loading point. 2. A load of 200N at the buccal cusp produced 5-fold increase in the stress concentration at the neck of the implant and apex of regenerated bone irrespective of surrounding bone density compared to a load of 200N at the central fossa. 3. It was found that stress was more homogeneously distributed along the side of implant when the implant was surrounded by both regenerated bone and native type III bone. In summary, these data indicate that concentration of stress on the implant - regenerated bone interface depends on both the native bone quality surrounding the regenerated bone adjacent to implant and the load direction applied on the prosthesis.

강선고정을 이용한 전위성 비구 골절의 치료

김종관 ( Chong Kwan Kim ),진진우 ( Jin Woo Jin ),윤종호 ( Jong Ho Yoon ),정성원 ( Sung Won Jung ),팽정욱 ( Jung Wook Peang ) 대한골절학회 2008 대한골절학회지 Vol.21 No.2

목적: 전위성 비구골절 환자에서 강선 고정을 이용한 내고정술 시행 후 임상적 방사선학적 결과를 분석하여 그 유용성을 알아보고자 하였다. 대상 및 방법: 2000년 1월부터 2005년 12월까지 강선고정을 이용한 내고정술 시행한 19예를 대상으로 하였으며, Letournel의 분류상 양주 골절 9예, 횡 골절 5예, 후방 반횡 골절 3예 및 T-형 골절이 2예였다. 13예에서는 강선 고정만 시행하였으며, 6예에서는 강선고정과 금속판 또는 금속나사 고정을 함께 시행하였다. 수술 후 정복의 정확도를 평가하였으며, 최종 추시 시 임상적 결과와 방사선적 결과를 평가하였다. 결과: Matta의 평가법에 따른 정복의 정확도는 해부학적 정복 12예, 불완전 정복 4예, 불량 정복 2예, 수술적 이차 상합관절 (surgical secondary congruence) 1예였다. Matta의 등급에 따른 임상적 결과는 우수 12예, 양호 4예, 보통 2예, 불량 1예였으며, 방사선적 결과는 우수 10예, 양호 4예, 보통 3예, 불량 2예였다. 합병증으로 심부 감염이 1예, 외상성 관절염이 1예, 이소성 골화가 2예에서 발생하였다. 결론: 전위성 비구 골절의 치료에 있어서 강선 고정술은 정복과 고정을 동시에 얻을 수 있는 유용한 내고정물로 사료되며, 골절 형태에 따라 금속나사 및 금속판과 함께 사용할 경우 정확한 정복 및 견고한 고정을 얻을 수 있다. Purpose: To evaluate the usefulness of wire fixation in displaced acetabular fractures. Materials and Methods: From January 2000 to December 2005, 19 cases of displaced acetabular fracture were treated with wire fixation. According to Letournel`s classification there were 9 both column fracture, 5 transverse fracture, 3 anterior column with posterior hemitransverse and 2 T-type fracture. Only wire fixation in 13 cases and wire with plate or wire with screw fixation in 6 cases. Results: We evaluate the accuracy of reduction by Matta` criteria, anatomical reduction in 12 cases, incomplete reduction in 4 cases, poor reduction in 2 cases and surgical secondary congruence in 1 case. The clinical results showed excellent in 12 cases, good in 4 cases, fair in 2 cases and poor in 1 case. The radiological results showed excellent in 10 cases, good in 4 cases, fair in 3 cases and poor in 2 cases. There were 4 cases of complication; wound infection in 1case, post-traumatic arthritis in 1 case and heterotopic ossification in 2 cases. Conclusion: The cerclage wiring is a preferable method in internal fixation of displaced acetabular fractures that can facilitate reduction and achieve stable fixation.

노래미 , Hexagrammos agrammus 의 섭식량과 성장량으로부터 에너지 대사의 추정

김종관(Chong Kwan Kim),장창익(Chang Ik Zhang) 한국수산과학회 1998 한국수산과학회지 Vol.31 No.1

This study is to examine the energy budget of Hexagrammos agrammus in the natural habitat, based on the von Bertalanffy`s growth model using food consumption and growth data of the fish. The fish were collected at the coasts of Tongbaek Island in Pusan and Shinsu Island in Samchonpo, Korea. The standard energy budget model was adopted for this study and the model has the components of food consumption(C), production(G), assimilation(A), absorption(A_b), catabolism(R), excreta(U) and feces(F). These components were expressed as mass unit, not as calorie unit as usual. Both the mass and the proportion of each component varied with age of the fish. The mass of annual excreta declined as the fish became older, while those of the other components increased with the age. The relationship between mean weight(W) and annual absorption(A_b) was a non-linear one with the equation of A_b=4.592W^(0.666), while that between mean weight(W) and annual catabolism(R) was linear as R=0.007+0.567W. On the other hand, the annual food consumption(C) showed linear relations both with annual assimilation(A) and annual catabolism(R) as A=-7.026+0.061C and R=-20.749+0.048C, respectively.

Gottron's Acrogeria 증후군

김종관(Chong Kwan Kim),안병우(Byung Woo Ahn),이상엽(Sang Yup Lee),박찬협(Chan-Hyup Park),정용희(Yong Hi Chung) 대한정형외과학회 1997 대한정형외과학회지 Vol.32 No.5

Cetylpyridinium Chloride(CPC), NaF 및 Ursodeoxycholic acid(UDCA) 혼합물의 주요 치주병원균에 대한 in Vitro 항균효과

김종관,최봉규,유윤정,김상년,석재균,김문무,Kim, Chong-Kwan,Choi, Bong-Kyu,Yoo, Yun-Jung,Kim, Sang-Nyun,Seok, Jae-Kyun,Kim, Moon-Moo 대한치주과학회 1999 Journal of Periodontal & Implant Science Vol.29 No.2

The antibacterial efficacy of a mouthrinse(Denta Gargle) containing CPC(cetylpyridinium chloride), NaF and UDCA(ursodeoxycholic acid), on major periodontopathogens, was in vitro examined and compared with that of Listerine by a broth dilution method. The bacteria tested were Actinobacillus actinomycetemcomitans, Bacteroides forsythus, Fusobacterium nucleatum subsp. vincentii, Prevotella intermedia, Porphyromonas gingivalis and Treponema denticola. The growth of all the bacteria were completely inhibited by a 1-min exposure to the both mouthrinses. When diluted at 1:5 or more, all bacteria analyzed but P. intermedia were not inhibited by Listerine. In contrast, Denta Gargle showed highly increased maximum inhibitory dilutions(MID) against all periodontopathogens included in this study, with MIDs ranging from 5-fold(F. nucleatum) to 160-fold dilutions(P. intermedia). The MIDs against A. actinomycetemcomitans, B. forsythus, P. gingivalis and T. denticola. were 1:40, 1:80, 1:80 and 1:80, respectively.

대퇴골 전자간 골절 후 발생한 정맥혈전색전증과 표재대퇴동맥 패색증 -증례 보고-

김종관 ( Chong Kwan Kim ),안병우 ( Byung Woo Ahn ),김상민 ( Sang Min Kim ),강승훈 ( Seung Hoon Kang ),한계영 ( Kye Young Han ) 대한고관절학회 2013 Hip and Pelvis Vol.25 No.4

고관절 주위 골절은 노년층이 증가함에 따라 증가하고 있고 수상 및 수술 후 발생하는 정맥혈전색전증은 생명을 위협하는 치명적인 합병증을 유발할 수 있다. 본원에서는 과거력 상 폐색전증을 진단받았으나 추시 소실 되었던 환자에서 대퇴골 전자간 골절이 발생한 후 폐색전증이 재발 하였고 항응고제를 이용하여 치료 하였다. 수상 18일 후 고관절 반치환술과 대전자 고정을 위한 갈고리금속판을 이용한 고정술을 시행하였다. 수술 다음날 정맥 혈전색전증 및 표재 대퇴동맥 패색증이 발생하였고 이 증례를 경험하여 이를 문헌고찰과 함께 보고하고자 한다. As the elderly population increases, occurrence of hip fractures has shown a rapid increase, and posttraumatic and postoperative venous thromboembolism can lead to fatal complications. Current prophylactic management includes mechanical and chemical prophylaxis. A 76-year-oldfemale, who was lost to follow-up after diagnosis of pulmonary thromboembolism four years ago, was admitted to our emergency room for a right intertrochanteric fracture. Before the operation, the thromboembolism recurred and was treated with anticoagulation medication. Bipolar hemiarthroplasty and fixation of the greater trochanter with a hook plate were performed 18 days after the trauma. Superficial femoral artery obstruction and venous thromboembolism occurred on the first day after the operation.

짧은 측면 금속판 압박 고 나사를 이용한 안정성 대퇴 전자간 골절의 치료

김종관 ( Chong Kwan Kim ),진진우 ( Jin Woo Jin ),정성원 ( Sung Won Jung ),곽완섭 ( Wan Sub Kwak ),조제일 ( Jae Il Jo ),김우식 ( Woo Sik Kim ) 대한골절학회 2006 대한골절학회지 Vol.19 No.3

목적: 안정성 대퇴골 전자간 골절의 치료에 있어서 2공 측면 금속판 압박 고 나사를 이용하여 내고정 후 그 유용성에 대해 알아보고자 한다. 대상 및 방법: 2000년 1월부터 2004년 9월까지 본원에서 치료받은 안정성 대퇴골 전자간 골절 환자 중 8개월 이상 추시가 가능하였던 46예를 대상으로 하였으며 2공 측면 압박 고 나사를 이용한 25예를 제1군, 4공 측면 압박 고 나사를 이용한 21예를 제2군으로 비교하였다. 평균연령은 70세였으며, 평균 추시기간은 13개월이었다. 수술 시간, 피부 절개 길이, 출혈량, 골유합 시기, 지연 나사의 활강 정도와 대퇴골 경간각 변화 및 보행능력을 분석하였다. 결과: 수술 시간은 제1군에서 평균 50분으로 더 짧았고, 출혈량도 제1군에서 짧았다 (p<0.01). 골유합 시기는 평균 13주로 두 군 간의 차이는 없었으며, 불유합은 없었다. 지연 나사의 활강 정도는 두 군에서 평균 4.9 mm였다. 보행능력 평가는 Parker와 Palmer의 mobility score를 이용하였으며 수상 전 평균 8.0점에서 최종 추시 시 평균 7.2점이었다. 결론: 안정성 대퇴골 전자간 골절의 치료에 있어서 2공 측면 압박 고 나사를 이용한 내고정술식은 기존의 4공 측면 압박 고 나사에 비해 작은 피부 절개, 짧은 수술 시간, 적은 출혈량, 만족스러운 골유합 및 수술 후 환자의 보행 기능의 평가에 있어서 좋은 결과를 얻었으며, 고위험군 환자에서 유용한 내고정물로 생각된다. Purpose: To evaluate the usefulness of a 2 holes side plate dynamic hip screw for the treatment of stable intertrochanteric fracture of the femur. Materials and Methods: Between January 2000 and September 2004, 46 patients with intertrochanteric fracture of the femur were treated with 2 hole side plate dynamic hip screw (Group 1, 25 cases) or 4 hole side plate dynamic hip screw (Group 2, 21 cases). The mean age of the patient was 70 years, with a mean follow-up duration of 13 months. The time for operation, surgical incision length, blood loss, time for union, the sliding distance, change in the femoral neck-shaft angle and patient`s walking ability were evaluated. Results: The mean operation time and mean incision length were shortened, and mean blood loss was decreased in Group 1 (p<0.01). There was no statistical difference in the union time, the mean change in the femoral neck-shaft angle and the mean sliding distance of the lag screw at the last follow-up. The mean mobility score of the Parker and Palmer was 8.0 points before the fracture and 7.2 points at the last follow-up. Conclusion: Two-hole side plate dynamic hip screw is a useful device, in terms of the operation time, morbidity of operation site, satisfactory union rate and functional recovery of the patient in treatment of elderly patients with stable intertrochanteric fractures of the femur.

치주질환 진행에 따른 치아주위조직의 변화에 대한 전자현미경적 연구

김종관(Chong Kwan Kim),채중규(Jung Kiu Chai),조규성(Kyoo Sung Cho),문익상(Ik Sang Moon) 대한치과의사협회 1987 대한치과의사협회지 Vol.25 No.11