주상골의 골내 결절종 - 1예 보고 -

홍창화 순천향대학교 의학연구소 2009 Journal of Soonchunhyang Medical Science Vol.14 No.3S

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골다공증성 척추 골절의 경피적 척추 성형술 후의 추체 높이의 변화

홍창화 대한골다공증학회 2011 Osteoporosis and Sarcopenia Vol.9 No.3

Objectives: To evaluate the effective of vertebroplasty in restoring the vertebral height and in changing the kyphotic angle in osteoporotic vertebral fractures. Materials and Methods: From Jan. 2000 to Dec. 2007, 111 patients, 125 vertebral bodies who were diagnosed as osteoporotic vertebral compression fracture and to whom the vertebroplasty was performed. We analysed the height loss using the ratio of posterior aspect of body to anterior and central area. We calculated the change of kyphotic angle by the lower end plate of the upper body and upper end plate of the lower body. Results: An increase in vertebral height was seen in 89 (71%) vertebral bodies, while the preoperative decrease in vertebral height was seen in 25 (10~82)% on the anterior portion, 39 (15~71)% on the middle portion. The kyphotic angle was 13 (5~30) degrees in average. After vertebroplasty, the decrease in vertebral height was 23 (0~55)% on the anterior portion, 34 (10~56)% on the middle portion in average. As a result, increases of 2% and 4% of vertebral height were seen on the anterior and the middle portion respectively. A change in kyphotic angle after vertebroplasty was 10.4 (1.5~22) degrees in average, an increase of about 2.6 degrees. Conclusions: An increase in vertebral height was observed after percutaneous vertebroplasty but not in all of the cases. Percutaneous vertebroplasty not only reduces pain after vertebral fractures but also it is thought to have an influence on the sagittal plane of the total vertebrae and this has to be evaluated in further studies.

경피적 척추 성형술후의 추체 높이의 변화

홍창화 순천향의학연구소 2006 Journal of Soonchunhyang Medical Science Vol.12 No.2

Purpose : To evaluate the effective of vertebroplasty in restoring the vertebral height and in changing the kyphotic angle in osteoporotic vertebral fractures. Materials and Methods : From Jan. 2000 to May 2005 , 100 patients, 113 vertebral bodies who were diagnosed as osteoporotic vertebral compression fracture and to whom the vertebroplasty was performed. We analysed the height loss using the ratio of posterior aspect of body to anterior and central area. We calculated the change of kyphotic angle by the lower end plate of the upper body and upper end plate of the lower body. Results : An increase in vertebral height was seen in 80(71%) vertebral bodies, while the preoperative decrease in vertebral height was seen in 25(10-82)% on the anterior portion, 39(15-71)% on the middle portion. The kyphotic anglewas 13(5-30) degrees in average. After vertebroplasty, the decrease in vertebral height was 23(0-55)% on the anterior portion, 34(10-56)% on the middle portion in average. As a result, increasesof 2% and 4% of vertebral height were seen on the anterior and the middle portion respectively. A change in kyphotic angle after vertebroplasty was 10.4(1.5-22) degrees in average, an increase of about 2.6 degrees. No special complications were observed among the patients. Conclusion : An increase in vertebral height was observedafter percutaneous vertebroplasty but not in all of the cases, Percutaneous vertebroplasty not only reduces pain after vertebral fractures but also it is thought to have an influence on the sagittal plane of the total vertebrae and this has to be evaluated in further studies.

족근 거주상탈구와 동반된 비전위성 주상골 골절 - 증례 보고 -

홍창화,박종석,최호림,이상선,권세원,조주형,Hong, Chang-Hwa,Park, Jong-Seok,Choi, Ho-Rim,Lee, Sang-Soen,Kwon, Sai-Won,Cho, Ju-Hyeong 대한정형외과스포츠의학회 2008 대한정형외과스포츠의학회지 Vol.7 No.1

Isolated navicular fracture and dislocation of talonavicular joint is extremely rare. It is recommended closed or open reduction for displaced fracture. We reported one case of isolated tarsal navicular fracture and dislocation of the talonavicular joint, treated with open reduction and internal fixation using K-wires. 족부 주상골의 골절 및 거주상 관절의 탈구는 그 빈도가 매우 드물다. 이에 대하여는 관혈적 혹은 비관혈적의 정복술이 요구된다. 저자들의 단독 주상골 골절 및 거주상 관절 탈구에 관하여 관혈적 정복술 및 K-강선을 이용한 내고정을 이용한 치료를 하여 만족할만한 결과를 얻었으며, 문헌 고찰과 함께 보고하는 바이다.

퇴행성 척추 질환 환자에서 시행한 측방 추체간 유합술의 수술 전과 수술 후 영상학적 및 임상적 지표의 비교 분석

홍창화,김우종,홍용철,소재완,김창현,장희준 대한척추외과학회 2019 대한척추외과학회지 Vol.26 No.4

Study Design: Retrospective study of prospectively-collected data. Objectives: To evaluate the radiological outcomes of direct lateral lumbar interbody fusion (DLIF). Summary of Literature Review: DLIF, as a minimally invasive spinal surgical procedure, is useful for degenerative spinal diseases. However, few reports have evaluated the clinical and radiological outcomes of DLIF in Korea. Materials and Methods: We analyzed 44 patients who underwent DLIF at our hospital from September 2015 to September 2017. Of these patients, 89 segments were included in this study. We measured preoperative and postoperative radiological values including the disc height, central canal area, height of the foramen, and segmental sagittal angle on magnetic resonance imaging. We also measured patients’ visual analogue scale (VAS) and Oswestry Disability Index (ODI) scores as clinical parameters. Results: Statistically significant improvements were found in the height of the left and right foramina (20.8% and 25.6%, respectively), the height of the intervertebral discs (86.0% and 84.3%, respectively), the cross-sectional area of the central nervous system (33.1%), lumbar lordosis, and the lumbar segmental angle (2.7° and 8.7°, respectively) after surgery. The VAS and ODI scores also showed significant improvements (65.7% and 67.7%, respectively) when compared with the preoperative level. Conclusions: DLIF was found to be effective for the treatment of diseases such as foraminal stenosis, degenerative spondylolisthesis,and adjacent segment diseases through indirect neuro-decompression of the bilateral foramina and central vertebrae. Key words: Spinal stenosis, Spinal fusion, Direct lateral lumbar interbody fusion 연구 계획: 전향적으로 수집된 임상 결과에 대한 후향적 연구목적: 측방 요추체간 유합술의 임상적 및 영상학적 지표 변화의 평가선행 연구문헌의 요약: 측방 요추체간 유합술은 척추관 협착증의 치료를 위한 최소 침습 척추 수술의 하나로서 훌륭한 임상적 결과를 보이고 있다. 그러나, 국내에서 해당 수술 시행 후 임상적 및 영상학적 평가는 드물게 보고되었다. 대상 및 방법: 2015년 9월부터 2017년 9월까지 본원에서 척추관 협착증으로 측방 요추체간 유합술을 시행한 89 분절, 44 명의 환자를 대상으로 연구를 시행하였다. 영상학적 지표로서 수술 전 후 추간판의 높이, 추간공의 높이, 척추관의 단면적, 요추 전만각 및 분절간 시상각의 변화를 측정하였으며, 임상적 지표로 수술 전 및 1년 추시 시행시의 VAS, ODI score를 측정하여 비교하였다. 결과: 수술 전과 비교하였을 때 수술 후 좌·우 추간공의 높이는 수술 후 각각 20.8%, 25.6% 증가하였고, 전·후 추간판의 높이는 수술 후 각각 86.0%, 84.3% 증가하였으며, 중심 신경관의 단면적은 33.1% 증가하였다. 또한 요추 전만각 및 요추 분절각 역시 수술 후 각각 2.7도, 8.7도 증가한 것을 확인할 수 있었으며, 임상적 지표 역시 수술 전과 수술 후 1년시 측정한 값을 비교하였을 때 VAS LBP, VAS Buttock, VAS Leg 값은 각각 65.7%, 61.1%, 59.3% 호전되었으며, ODI는 약 67.6% 호전되었다. 결론: 측방 요추체간 유합술은 양측 추간공 및 중심 척추관의 간접신경 감압을 통하여 영상학적 및 임상적으로 좋은 결과를 얻을 수 있으며 특히, 추간공 협착증, 퇴행성 척추 전방 전위증 및 인접 분절 퇴행성 질환 등의 질환군에서 효과적이다. 약칭 제목: 측방 요추체간 유합술(DLIF)의 임상적 및 영상학적 결과

소아 대퇴골 간부골절에 대한 유연성 골수내정을 이용한 내고정술 후 하지부동 및 각형성의 발생

홍창화 순천향대학교 순천향의학연구소 2016 Journal of Soonchunhyang Medical Science Vol.22 No.2

Objective: Femoral fracture is one of the most frequent fractures in children and complications occurs such as malunion and leg length discrepancy after internal fixation using flexible intramedullary nail. The author intended to consider operational treatment using flexible intramedullary nailing through a quantitative data including age, pattern and location of fracture for angulation, and leg length discrepancy. Methods: A retrospective survey was performed by 30 cases of child patients who underwent internal fixation using flexible intramedullary nail for femoral shaft fracture. Using a simple radiography, duration of union and angulation were measured. Leg length discrepancy was evaluated by scanogram. By measuring each 2 times at an interval of 1 week by 2 observers, error among observers and error in observer were excluded. For statistical validation, t-test and lineal regression analysis were used. Results: Immediate postoperatively, valgus condition of 7 degrees was represented and affected side was represented to show varus of 5.6 degrees on average in 46.6% of child patients. The more age of patient is young, more angulation was represented to be significantly taken place in transverse fracture rather than oblique fracture, but depending on fracture location, significant difference was not observed. Leg length discrepancy showed overgrowth of 6.39 mm on average. And cases of overgrowth over 5 mm being were represented and age of all the child patients was below 9 years old. As a result of statistical analysis, it was observed that the age is younger, leg length discrepancy was prone to be occurred, and its significant relevance with fracture form or fracture location was not represented. Conclusion: Transverse fracture is represented at the time of performing internal fixation using flexible intramedullary nail. Occurrence rate of angulation and leg length discrepancy was high but follow-up period is required to be extended even after the time when growth is completed on a long-term basis and in case of imperfect correction, additional treatment such as physeal plate stapling is required. Bone shortening and lengthening may be required and it is considered to be a useful method for femoral shaft fracture of children.

요배부의 동면선종 - 1예 보고 -

홍창화,이상선,조상혁,Hong, Chang-Hwa,Lee, Sang-Seon,Cho, Sang-Hyuck 대한근골격종양학회 2007 대한골관절종양학회지 Vol.13 No.2

동면선종은 잔존하는 갈색지방으로부터 발생한 드문 양성의 종양으로 근육과 피하 조직에 영향을 미치며 무증상이며 서서히 자라는 특성을 가지고 있다. 이의 자기 공명 영상 소견 상의 특징을 연구하여 술 전에 다른 양성 종양과의 감별 진단을 고려하여야 할 것이다. Hibernoma is a rare, benign tumor arising from vestigial remnant of brown adipose tissue. It is usually asymptomatic and slow growing. Awareness of the MR imaging may allow possible differential diagnosis prior to surgery.

항공 응용 : 보안 모니터링과 감청의 차이점에 관한 연구

홍창화 ( Chang Hwa Hong ),최민규 ( Min Kyu Choi ),김태훈 ( Tai Hoon Kim ) 한국항행학회 2009 韓國航行學會論文誌 Vol.13 No.1

단순 농양으로 오진하기 쉬운 천미부에 발생한 모소낭

홍창화(Chang-Hwa Hong),유승만(Seung-Mann Ryoo) 대한정형외과학회 2010 대한정형외과학회지 Vol.45 No.1

모소낭은 청소년기에서 청년기에 주로 남성에서 호발하는 천미부의 감염성과 재발성이 많은 질환으로 알려져 있다. 이 질환은 대부분 단순 농양이나 피지낭종으로 오인되어 여려 번의 수술을 받는 경우가 흔하다. 수많은 치료법이 보고되고 있으나 치료의 원칙은 모소낭의 광범위 절제가 원칙이다. 이에 저자들은 청ㆍ장년에서 천미부에 발생한 농양의 진단 및 치료에 있어서 단순농양으로 오진 하고 단순 배농 및 절제를 계획하였다가 모소낭으로 지연 진단되어 광범위 절제술로 치료를 시행한 2예를 경험하여 문헌고찰과 함께 보고하는 바이다. A pilonidal cyst is known to be a recurrent infectious disease in the sacrococcygeal region and it usually affects adolescents and adults. It is often misdiagnosed as a simple abscess or a sebaceous cyst, so there are many patients with pilonidal cysts who have gone through several operations. Although many treatments for this malady have been reported, the principle treatment for pilonidal cysts is radical excision. We report here on two cases of pilonidal cyst and the patients were misdiagnosed as having a simple abscess. We planned to perform incision and drainage, but the lesions were finally diagnosed as pilonidal cysts and so we performed radical excision for the treatment. We also review the medical literature on abscesses that occur in the sacrococcygeal region in early adulthood.

군 시설물 유지보수 우선순위 선정을 위한 하위기준 및 평가등급

홍창화(Hong, Chang-Hwa),박문서(Park, Moon-Seo) 대한건축학회 2020 대한건축학회 학술발표대회 논문집 Vol.40 No.2