폐콘크리트로부터 얻은 재생미분말의 재활용 방안

서상교,Seo, Sang-Gyo 한국레미콘공업협회 1996 레미콘 Vol.7 No.-

건축분야(建築分野)의 국제문헌정보활동(國際文獻情報活動)

서상교,Seo, Sang-Gyo 한국과학기술정보연구원 과학기술정보센터 1974 Journal of Information Science Theory and Practice Vol.7 No.3

경부고속철도 1단계 건설시 기술적 사항과 2단계 공사방향의 변화와 영향

서상교,Seo, Sang-Gyo 대한교통학회 2005 교통 기술과 정책 Vol.2 No.1

방사선 투과 각도에 따른 족부 방사선 지표의 변화: Phantom Foot을 이용한 연구

김어진,서상교,이동연,Kim, Eo Jin,Seo, Sang Gyo,Lee, Dong Yeon 대한족부족관절학회 2015 대한족부족관절학회지 Vol.19 No.4

Purpose: The purpose of this study is to analyze the measurement differences of simple radiographs according to radiation projection angle using a phantom and to propose methods for objective analysis of simple radiographs. Materials and Methods: We took simple radiographs with different projection angles using a C-arm image intensifier and measured five parameters of the foot on the simple radiographic images. Five parameters include lateral tibiocalcaneal angle, lateral talocalcaneal angle, naviculocuboid overlap, lateral talo-first metatarsal angle, and lateral calcaneo-first metatarsal angle. Intraobserver and interobserver reliability were verified, and then intraclass correlations of parameters were analyzed. Results: Radiographic parameters of the foot showed high intraobserver and interobserver reliability. Lateral tibiocalcaneal angle has a strong negative linear relationship with rotation and a moderate negative linear relationship with tilt. Lateral talocalcaneal angle has a moderate positive linear relationship with rotation and a strong positive linear relationship with tilt. Naviculocuboid overlap has a strong positive linear relationship with rotation and a moderate positive linear relationship with tilt. Lateral talo-first metatarsal angle does not have a linear relationship with rotation and a moderate negative linear relationship with tilt. Lateral calcaneo-first metatarsal angle has a moderate positive linear relationship with rotation and tilt. Conclusion: More precise evaluation of the foot with a simple radiograph can be performed by understanding the changes of radiographic parameters according to radiation projection angle.

족압검사를 이용한 만성 발목 불안정성과 압력중심의 연관성

박은수,서상교,이호승,Park, Eun Soo,Seo, Sang Gyo,Lee, Ho Seong 대한족부족관절학회 2020 대한족부족관절학회지 Vol.24 No.1

Purpose: Chronic ankle instability is a very common abnormality of the ankle, but there is still controversy regarding its evaluation criteria. The stress view has difficulties in reflecting the patient's symptoms and treatment progress. Therefore, this study examined the relationship between the center of pressure (COP) measured by a pedobarograph and the symptoms of the patient. Materials and Methods: Thirty patients with chronic ankle instability from February to August 2018 were included. Each patient was surveyed with the foot and ankle outcome score (FAOS). The COP was measured with a foot pressure scanner, and the travel distance and ellipse area of the COP were calculated. Each patient was measured on one foot and on two feet with his or her eyes closed and open. The relationship between the COP measurement and FAOS score was analyzed using the Pearson correlation coefficient. Results: The participants were consisted of 21 male and nine female, with a mean age of 30 years, mean weight of 72 kg, and mean foot size of 259 mm. With the eyes open, the correlation coefficient between the FAOS and travel distance of the affected side was -0.394 (p<0.05) and that between the FAOS and the ellipse area of the affected side was -0.425 (p<0.05). On the other hand, no significant correlations were found between the travel distance and ellipse area of the affected side when patients closed their eyes. Conclusion: Measurement of the COP using foot pressure scanner could evaluate objectively patients with chronic ankle instability, with measurements in patients with their eyes open being more significant. Based on the findings of this study, an analysis of the COP with the patients with their eyes open and standing on one foot may help determine the management strategy and assess the progress of the patients.

족관절 골절 형태에 따른 조기 재활의 임상결과

송중원,이호승,서상교,류창현,Song, Joong Won,Lee, Ho Seong,Seo, Sang Gyo,Ryu, Chang Hyun 대한족부족관절학회 2017 대한족부족관절학회지 Vol.21 No.1

Purpose: To evaluate the clinical outcome of an operation with early rehabilitation from ankle fracture in accordance with the injury type. Materials and Methods: A total of 136 patients (70 males and 66 females) who underwent surgery and early rehabilitation for ankle fractures between December 2008 and December 2013 were retrospectively reviewed. The average age was 47.9 years, with a range of 18~79 years. The mean follow-up period was 28.7 months, with a range of 24~102 months. All patients were classified in accordance with the Lauge Hansen classification and anatomic fracture site. Moreover, the presence of ligament injuries were documented. A short-leg cast was applied postoperatively for two weeks; thereafter, patients began the range-of-motion exercises after cast removal. Full weightbearing was allowed at 2 weeks postoperatively. Each patient was assessed radiologically and clinically based on the OlerudMolander score, visual analogue scale (VAS) for pain, joint stiffness, and capability of single heel raising. Results: Seventeen patients (12.5%) complained of postoperative pain (VAS score 1~3), and the incidence was higher in patients with trimalleolar fractures or associated ligament injuries. Twenty-three patients (16.9%) complained of postoperative ankle stiffness. The mean Olerud-Molander score was 75.4/80 (range, 55~80). Olerud-Molander scores were lower in patients with ligament injuries than in those with fracture alone. There was no nonunion or fracture displacement even after early weightbearing walking. Conclusion: In this retrospective series, early rehabilitation after surgical restoration of ankle mortise by anatomical reduction and stabilization was shown to be successful. Earlier motion exercise and weightbearing walking can minimize fracture complications like joint stiffness or weakness in ankle fracture.

지연성 요추 부위 Morel-Lavalee Lesion에 대한 경피적 배농술 및 경화술을 이용한 치료 - 2명의 사례 보고 -

주홍실 ( Hongsil Joo ),서상교 ( Sang Gyo Seo ),이상열 ( Sang Yeul Lee ),성건용 ( Kun Yong Sung ) 대한골절학회 2016 대한골절학회지 Vol.29 No.4

비개방적인 박탈성 손상은 근막과 피하조직 사이의 분리와 연관되는 중요한 연부조직 손상이다. 이러한 Morel-Lavallee lesion 의 진단은 임상적 영상학적으로 이루어지지만, 약 1/3에서 적절한 진단을 내리지 못하는 경우도 많고, 치료에의 어려움도 있다. 본 연구에서는 골절이 동반되지 않은 지연성 Morel-Lavallee lesion에 대해 경피적 배농술 및 경화술을 통한 치료 증례를 보고하고자 한다. 본 증례에서는 최소 침습 경피적 접근을 통하여 성공적인 병변의 치료를 얻었다. 이러한 치료는 피하의 혈류를 보존할 수 있어 절개 수술에 비해 피부의 손상을 최소화할 수 있을 것으로 판단된다. Closed internal degloving is a significant soft-tissue injury associated with a trauma that results in a tear of the subcutaneous tissue away from the underlying fascia. Although the diagnosis of Morel-Lavallee lesion (MLL) is routinely based on clinical and radiological examinations, in one-third of the cases, there is a possibility that clinicians may fail to diagnose MLL due to its inconsistent clinical manifestations. Additionally, it often involves initial skin bruising due to underlying soft-tissue injury. We present two cases of delayed MLL without a fracture treated using percutaneous drainage and sclerotherapy. Our cases demonstrated successful treatment with a minimally invasive percutaneous approach. The potential advantage of using a percutaneous technique is to preserve the subdermal arterial plexus, which is the only remaining blood supply to the skin in the area of the lesion. Maintaining this blood supply may result in healthier skin at the time of any open procedure.

족부 질환 진단을 위한 단순 촬영 영상 자동 분할 기법

윤서원(Seowon Yun),서상교(Sang Gyo Seo),김재일(Jaeil Kim) 한국정보과학회 2018 한국정보과학회 학술발표논문집 Vol.2018 No.12

증상이 있는 거골 골연골병변의 비수술적 치료 결과

김진수(Jin Soo Kim),이호승(Ho Seong Lee),서상교(Sang Gyo Seo),송중원(Joong Won Song),서동교(Dong-Kyo Seo),류창현(Chang Hyun Ryu) 대한정형외과학회 2017 대한정형외과학회지 Vol.52 No.2

목적: 최근 거골 골연골병변에 대한 적극적 수술이 행해지고 많은 보고가 있지만, 비수술적 치료에 대한 보고는 많지 않다. 본 연구는 거골 골연골병변에 대한 비수술적 치료의 경과를 보고하고자 한다. 대상 및 방법: 2003년부터 2013년까지 수술을 권유 받았으나 시행 받지 않고 2년 이상의 관찰을 시행한 104명을 대상으로 후향적 연구를 진행하였다. 자기공명영상 또는 컴퓨터 단층촬영을 통해 병변 위치, 크기, stage를 확인하였다. 최종 추시 시 단순 방사선 영상을 시행하여 관절염 진행 여부를 확인하였으며, 운동의 제한 여부를 조사하고, visual analogue scale (VAS), American Orthopedic Foot and Ankle Society (AOFAS) scale, SF-36을 측정하였다. 결과: 최종 추시 시 관절염의 진행은 없었으며, 2명(2.4%)의 환자만 원하는 운동의 제한을 호소하였다. 평균 VAS는 내원 시 4.3에서 1.1로 감소하였다(p<0.001). 평균 AOFAS scale는 83.3에서 92.5로(p<0.001), 평균 SF-36도 52.6에서 72.9로 호전되었다(p<0.001). 결론: 거골 골연골병변은 일시적 증상이 있더라도 호전되는 경우가 많고, 관절염으로의 진행이 드물기 때문에 거골 골연골병변 환자의 치료 시 충분한 비수술적 치료가 선행되어야 한다. Purpose: Although reports on operative treatment of osteochondral lesion of the talus (OLT) are increasing, to the best of our knowledge, there have been only a few reports on non-operative treatment of OLT. The purpose of this study is to report the prognosis of non-operative treatment for OLT patients. Materials and Methods: This retrospective study included 104 patients (57 male, 47 female) with OLTs having a follow-up period of more than two years, between 2003 and 2013. The location, size, and stage of the OLT were confirmed by magnetic resonance imaging or computed tomography. At the final follow-up, simple radiographs confirmed the progression of osteoarthritis. We surveyed the limitations of sports activity, visual analogue scale (VAS), American Orthopedic Foot and Ankle Society (AOFAS) scale, and SF-36. Results: There were no patients with progression of osteoarthritis at the final follow-up. Only two patients (2.4%) complained the limitation of desired sports activity. The mean VAS significantly decreased from 4.3 (range, 0-8) to 1.1 (range, 0-4) (p<0.001). The mean AOFAS scale significantly improved from 83.3 (range, 41-100) to 92.5 (range, 65-100). Moreover, the mean SF-36 also improved from 52.6 (range, 30.0–91.0) to 72.9 (range, 40.6-97.0) (p<0.001). Conclusion: Sufficient non-operative treatment is initially recommended to OLT patients because pain, in general, improves in most cases despite the presence of symptoms. Moreover, it’s worth noting that the progression to osteoarthritis is rare.