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수직 변형된 골반골 불유합에 대한 수술적 교정 골 유합술 -후방 유리술 후 전방 교정 및 골 유합술에 대한 수술 술기 및 2예 보고-
최광천 ( Kwang Cheon Choi ),하지윤 ( Ji Yoon Ha ),김원유 ( Weon Yoo Kim ) 대한골절학회 2014 대한골절학회지 Vol.27 No.2
Nonunion of an unstable pelvic fracture with cranial displacement pelvic surgery is technically difficult due to a large amount of bleeding and the risk of nerve damage. In addition, surgical correction of leg length discrepancy by reduction of a dislocated sacroiliac joint is in high demand. Nevertheless, when a patient is strongly disabled by a pelvic deformity, surgical correction may be necessary. Two patients with pelvic deformity were treated successfully by surgical correction and osteosynthesis.
Type-II ZnO/ZnSe 코어/쉘 이종 구조 합성 및 광촉매활성 평가
이우형,최광일,강동천,백수웅,이석호,임철현,Lee, Woo-Hyoung,Choi, Kwang-Il,Kang, Dong-Cheon,Beak, Su-Woong,Lee, Suk-Ho,Lim, Cheol-Hyun 한국전기전자재료학회 2014 전기전자재료학회논문지 Vol.27 No.3
Recently, various type of nanomaterials such as nanorod, nanowire, nanotube and their core/shell nanostructures have attracted much attention in photocatalyst due to their unique properties. Among them, Type-II core/shell heterostructures have extensively studied because it has exhibited improved electrical and optical properties against their single-component nanostructure. Such structures are expected to offer high absorption efficiency and fast charge transport due to their stepwised energetic combination and large internal surface area. Thus, it has been considered as potential candidates for high efficient photocatalytic activity. In this work, we introduce a novel chemical conversion process to synthesize Type-II ZnO/ZnSe core/shell heterostructures. A plausible conversion mechanism to ZnO/ZnSe core/shell heterostructres was proposed based on SEM, XRD, TEM and XPS analysis. The ZnO/ZnSe heterostructures exhibited excellent photocatalytic activity toward the decomposition of RhB dye compared to the ZnO nanorod arrays due to enhanced light absorption and the type-II cascade band structure.
자기공명영상에서 나타난 만성 족근관절 외측 불안정성 동반 병변
이호진,주인탁,최광천,Lee, Ho-Jin,Chu, In-Tak,Choi, Kwang-Cheon 대한족부족관절학회 2009 대한족부족관절학회지 Vol.13 No.1
Purpose: This retrospective study was designed to determine the type and frequency of associated lesions in patients with chronic lateral ankle instability who had modified Brostrom lateral ankle ligament reconstruction. Materials and Methods: Between 2004 and 2007, 60 cases of 60 patients were enrolled in this study. A retrospective review of the magnetic resonance images of the affected ankle was conducted by two orthopedic surgeons who did not get any information about intraoperative findings and the lesions were admitted when two doctors were coincident. Results: The overall incidence of associated lesions found in this study was about 83%. Peroneal tenosynovitis was the highest frequency (32%), followed by osteochondral lesion of talus (28%), anterolateral impingement (15%), Os subfibula (13%), Os trigonum (12%), ankle synovitis (12%), anterior tibiofibular ligament tear (15%), anterior bony spur (7%). Another findings were loose bodies (5%), flexor tendon tenosynovitis (5%), medial osteophyte (3%). Conclusion: Identifying these associated lesions will be helpful in treating chronic lateral ankle instability especially when the surgeon have a plan to operate the instability. We suggest that the better results can be obtained when the associated lesions are corrected simultaneously.
이세원 ( Se Won Lee ),최광천 ( Kwang Cheon Choi ),김만수 ( Man Soo Kim ),김원유 ( Weon Yoo Kim ) 대한고관절학회 2014 Hip and Pelvis Vol.26 No.1
불안정성 골반환 손상은 불안정성이 전후방에 함께 존재하는 경우에는 전방 고정과 후방 고정을 함께 사용하여 안정시켜야 한다. 전방과 후방 모두 안정시켜야 할 불안정성 골반환 골절 여성 환자에서 전방 고정만을 실시하여, 추시상 골반골 부정 유합으로 형성된 골 가교가 질벽을 기계적으로 압박하여 성교통을 호소하였다. 저자들은 골편과 질내 반흔 조직 및 유착밴드를 제거하여 이를 성공적으로 치료한 증례를 경험하였기에 문헌 고찰과 함께 보고하고자 한다. In unstable pelvic ring injury, if there is damage to both the anterior and posterior, both anterior and posterior fixation will be needed in order to stabilze the pelvic ring. A female patient complained of dyspareunia due to malunion and additional bone bridge at the inferior ramus of the pelvis. She should have undergone both anterior and posterior fixation, but had undergone anterior fixation only. We report on a patient who was treated successfully with resection of additional bone bridge, scar tissue and adhesive band around the vagina.
박원종,이승구,강용구,이안희,박정미,정양국,최광천,Bahk, Won-Jong,Rhee, Seung-Koo,Kang, Yong-Koo,Lee, An-Hi,Park, Jeong-Mi,Chung, Yang-Guk,Choi, Kwang-Cheon 대한근골격종양학회 2007 대한골관절종양학회지 Vol.13 No.1
목적: 장골에서는 드물게 보고되어 있는 낭종성 섬유성 이형성증(cystic fibrous dysplasia)의 임상적, 방사선학적, 병리학적 소견과 더불어 단순 소파술과 골이식술의 결과를 기술하고자 한다. 대상 및 방법: 1996년 1월부터 2003년 3월까지 가톨릭 의과대학 3개 부속병원에서 섬유성 이형성증으로 치료받은 98명의 환자 중 커다란 낭종성 변화를 동반한 11명을 대상으로 하였다. 전례에서 단순 골소파술, 동종골 이식술 및 내고정술을 시행하였다. 6명은 남자였고, 5명은 여자였으며, 환자의 나이는 20세에서 46세로, 평균 36.7세였다. 결과: 6명은 수개월 이상 통증을 호소했으며, 4명은 사소한 외상 후에 발생한 통증을 호소하였다. 1명에서는 병적 골절이 발생했다. 10명의 환자는 단골성(monostotic) 이었고, 1명의 환자는 다골성(polyostotic) 이었다. 병변의 발생부위는 7예에서 대퇴골, 3예에서 상완골 그리고 1예에서는 요골이었다. 단순방사선 사진 상 간유리 음영과 더불어 보여지는 현저한 용해성 병변을 보였고, 자기공명영상에서는 섬유성 이형성증을 시사하는 신호강도와 낭종을 의미하는 신호강도가 동시에 보였다. 조직학적으로는 전형적인 섬유성 이형성증 소견과 더불어 비 특이적인 낭종성 변성 변화를 보였다. 최종 추시 관찰시 국소재발 없이 모두 만족스러운 결과를 보였다. 결론: 장골의 낭종성 섬유성 이형성증은 지금까지 보고된 것처럼 드물지 않은 것으로 사료된다. 자기공명영상으로 양성 낭종성 변화와 악성 변화를 쉽게 구분할 수 있으나, 비 특이적 낭종성 변성변화와 동맥류성 골낭종을 구분하기 위해 조직검사가 필요하다. 낭종성 섬유성 이형성증은 수술적 치료의 대상이며, 단순 골소파술 및 동종골 이식술은 효과적인 치료로 사료된다. Purpose: We describe clinical, radiographic, MRI and pathologic findings as well as final outcome after simple curettage and bone graft of cystic fibrous dysplasia (FD) in the long bone, which has been rarely documented in the literature. Materials and Methods: Clinical records, radiographs, MRI and histologic slides of 11 patients with cystic FD in the long bone were retrospectively analyzed. Results: Six patients complained pain for several months, 4 patients presented pain after trivial injury event, and 1 patient suffered pathologic fracture. The mode of involvement was monostotic in 10 patients and polyostotic in l patient. The femur was affected in 7 patients, the humerus in 3, and the radius in 1. Radiography showed prominent, expansive lysis associated with ground-glass density of FD. MRI revealed 2 different signals of FD and cyst. Microscopic examination revealed classic findings of FD and non-specific cystic degeneration. The final outcome was satisfactory in every patient. Local recurrence was not observed. Conclusion: Cystic FD in the long bone seems not as rare as the scarcity of reported cases would indicate. MRI features provide a basis for differential diagnosis between benign cystic change and malignant transformation. Cystic FD would be an indication for surgery and simple curettage with allo-chip-bone graft is effective.
정양국,이승구,김형민,박원종,이안희,박정미,강용구,최광천,Chung, Yang-Guk,Rhee, Seung-Koo,Kim, Hyung-Min,Bahk, Won-Jong,Lee, An-Hi,Park, Jung-Mi,Kang, Yong-Koo,Choi, Kwang-Cheon 대한근골격종양학회 2006 대한골관절종양학회지 Vol.12 No.1
목적: 장관골에 발생한 stage IIB 골육종의 치료결과를 분석하였다. 대상 및 방법: 1993년 2월 이후 장관골에 발생한 골육종에 대하여 수술 후 1년 이상 추시한 58예를 대상으로 하였다. 48예에서 광범위 절제술을, 2예에서 변연부 절제술을 시행했으며 나머지 8예에서는 절단술을 시행했다. 평균 추시기간은 4.1년 이었고 국소 재발, 원격 전이, 합병증, 생존율과 함께 종양학적 및 기능적 결과를 평가하였다. 결과: 최종 추시시 지속적 무병생존 35예, 무병생존 9예, 유병생존 5예, 질병으로 인한 사망이 7예였으며 2예는 다른 원인으로 사망하였다. 국소 재발이 8예(13.8%)에서 있었고 원격전이는 18예(31%)에서 있었으며 재건술을 시행한 48예 중 9예(18.8%)에서 감염증이 발생했다. 기능적 결과는 평균 24.3점이었다. 5년 생존율은 84.6%였으며 지속적 무병생존율은 술후 5년에 68.7%, 10년에 42.3%였다. 결론: 총 58예의 장관골에 발생한 Stage IIB의 골육종 중 46예(79.3%)에서 평균 4.1년 추시상 지속적 무병생존 또는 무병생존을 보였다. 치료군 전체의 5년 생존율은 84.6%였고 기능적 결과는 평균 24.3점으로 우수하여 다른 연구자들의 결과와 비견할 만 하였다. Purpose: To analyze the clinical outcome of stage IIB osteosarcomas arisen in the long bones. Materials and Methods: Since February 1993, 58 Enneking stage IIB osteosarcomas arisen in long bones were managed and followed at least one year at our four university hospitals. There were 48 wide resections, 2 marginal resections and 8 amputations. The mean follow up period was 4.1years (up to 12.2years). Local recurrence, distant metastasis, complication, survival rate, and oncologic and functional results were evaluated. Results: At the last follow up, 35 patients were CDF, 9 were NED, 5 were AWD, 7 were DOD and the remained 2 died with unrelated disease. Eight local recurrences (13.8%) and 18 distant metastases (31.0%) were occurred. Nine infections were developed after 48 reconstructions (18.8%). Overall functional outcome was 24.3 (81.%). The 5 year overall survival rate was 84.6% and the continuous disease-free survival rate was 68.7% at 5 years and 42.3% at 10 years. Conclusion: Forty-six of 58 stage IIB osteosarcomas arisen in long bones (79.3%) showed CDF or NED at an average 4.1 year follow up. Overall 5-year survival rate was 84.6% and overall functional outcome score was 24.3, which were comparable to those of other studies.