• 근관절건강학회지
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• 제7권1호
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• pp.89-101
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• 2000

This study was carried out to compare the bone mineral density and risk factors of osteoporosis between normal and rheumatoid arthritis in postmenopausal women. Sixty-eight postmenopausal patients with rheumatoid arthritis(RA) were compared with 124 postmenopausal normal women. Data were collected from october, 1998 to April, 1999 at Dong-a university hospital in Pusan. From all subjects, individual characteristics such as age, body weight, height, age of menarche, duration of menopause, gravity, parity, and breast feeding period and factors of life style such as milk consumption, exercise, alcohol intake, cigarette smoking, coffee consumption were identified as influencing factors of osteoporosis by questionnaire. From RA patients, health assessment score, Ritchie articular index, erythrocyte sedimentation rate, C-reactive protein and steroid dosage were measured by rheumatologist on measuring bone mineral density. Bone mineral density was measured at the Lumbar spine, femoral neck, femur Ward's triangle, and femur trochanter using dual x-ray absorptiometry. The data was analyzed by using a frequency, t-test, Chi-square, ANCOVA with SPSS PC program. The results could be summarized as follows : 1) There was a significant difference in age and breast feeding period between RA patients and normal women. 2) RA patients took less calcium in the past and practiced less regular exercise in past and present than normal women. 3) There was no difference in lumbar bone mineral density between RA patients and normal women. 4) There was a significant difference in femur Ward's triangle and femur trochanter between RA patients and normal women after adjustment for age and breast feeding period. 5) The prevalence of osteoporosis of all subjects was the highest in femur Ward's triangle. In summary, our findings suggest that the bone mineral densities of femur Ward's triangle and trochanter in postmenopausal women with RA is significantly lower than normal women. Also the exercise participation rate of postmenopausal women with RA is lower than normal women. For the further study, we recommend to develop exercise program that improve the bone mineral density in femur Ward's triangle and trochanter and to test the effect of that exercise program.

• 구강회복응용과학지
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• 제28권2호
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• pp.127-138
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• 2012

본 연구에서는 임플란트 고정체와 지대주 간의 전하중 크기가 임플란트 주위 변연골의 응력분포에 미치는 영향에 대해 조사하였다. 해석 모델은 하악골에 식립되는 단일 임플란트(solid형 지대주와 submerged 형 고정체)로 제작되었고, 외력 조건으로는 임플란트 지대주 상부에 100N의 기능력이 협설 방향으로 30도 경사져 협측으로 작용하도록 설정하였다. 전하중의 크기가 변연골 응력 분포에 어떠한 차이가 생기게 하는지를 조사하기 위해 다섯개의 다른 전하중의 크기(0, 200, 400, 600, 800N)를 부여하였다. 모든 분석은 선형 탄성을 가정하여 ABAQUS/CAE(ver6.10-1, HKS, Fremont, CA, USA) 프로그램을 사용하였다. 임플란트 주위 변연골 응력분포의 차이는 전하중의 크기와 관련이 있었다. 100N의 교합력 하에 전하중이 0인 경우 변연골(임플란트 벽에서 0.1mm 떨어진 부분)에서 압축 응력은 28.33MPa이었는데, 전하중을 200N 증가시킬 때마다 1.76MPa씩 증가하였다. 이런 방식으로 800N의 전하중을 가할 때 나타나는 최대 압축 응력은 35.18MPa이었다. 반면 변연골에서의 인장 응력은 전하중이 증가할 수록 감소하였다. 임플란트 고정체와 지대주 간의 전하중은 변연골에서의 압축 응력을 증가시킬 수 있으나 기능력에 비하면 그 효과는 미미할 것으로 판단된다.

• 대한정형외과학회지
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• 제56권4호
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• pp.334-340
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• 2021

목적: 족관절 골절과 골다공증의 상관관계를 알아보기 위하여 족관절 골절 환자의 요추체와 대퇴골의 골밀도 값을 분석하였다. 대상 및 방법: 2002년 4월부터 2014년 7월까지 족관절 골절로 진단받고, 수상 후 1년 이내 골밀도 검사를 시행했던 100명의 환자를 분석하였다. 수상 당시 연령에 따라 50세 미만, 50세 이상 70세 미만, 70세 이상의 세 군으로 나누었고, 골절의 유형은 단과골절, 양과골절, 삼과골절로 분류하였다. 골밀도는 요추체(요추 1-4번 평균치), 대퇴골 경부, 대퇴골 전자부, 대퇴골 전체의 T점수, Z점수 및 골밀도 절대값(g/cm²)을 분석하였다. 결과: 족관절 골절 환자는 여자의 수가 남자보다 3.2배 많았다. 연령별 군에 따른 골다공증의 유병률은 50세 미만 군에서 0%, 50-69세 군에서 24.2%, 70세 이상 군에서 15%였고, 이중 50-69세 군에서 삼과골절 환자의 30%가 골다공증으로 나타났다. 전체 환자 군에서 연령이 낮을수록 단과 골절의 빈도가 높게 나타났다. 골밀도 값과 골절 유형과의 관계는 요추체의 T점수와 골밀도 절대값(g/cm²) 및 대퇴골 경부의 Z점수가 낮을수록 삼과 골절의 빈도가 증가하였으나, 이외의 다른 지표는 골절의 유형과 통계적으로 뚜렷한 상관관계를 보이지 않았다. 결론: 100명의 족관절 골절 환자를 분석한 결과, 여자의 수가 남자보다 많았으며 골다공증의 정도가 심하지 않을수록 삼과골절보다는 단과골절의 발생 빈도가 높은 경향을 보였지만, 족관절 골절과 대퇴골 및 요추의 골밀도 값과의 상관관계는 통계적으로 의미있게 나타나지 않았다.

• Journal of Korean Neurosurgical Society
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• 제54권6호
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• pp.518-520
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• 2013

Ossified lipoma or osteolipoma are rarely reported. It is defined as a histologic variant of lipoma that has undergone osseous metaplasia. Osteolipoma presents with a dominant osseous component within a lipoma. We report a case of a histologically confirmed osteolipoma on the nuchal ligament independent of bone. The patient was a 51-year-old female who presented with a 5-year history of a painless, progressively enlarging mass on the posterior neck. Computed tomography and magnetic resonance imaging showed a circumscribed mass compatible with fat between the C2 and C6 spinous processes with a large calcified irregular component. The mass with dual components was totally removed under general anesthesia and no recurrence was observed after 6 months of follow-up. We also reviewed the clinicopathologic features of previously reported osteolipomas in the literature and suggest that although osteolipoma is a rare variant of lipoma, it should be considered in the differential diagnosis when a lipoma of the posterior neck mixed with a bony component is encountered.

• 대한두경부종양학회지
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• 제27권1호
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• pp.66-69
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• 2011

Skull base osteoradionecrosis(ORN)is a rare complication of radiotherapy for nasopharyngeal carcinoma, but is one of the most severe and possibly fatal condition followed by radiotherapy. However, the treatment of skull base ORN has seldom been thoroughly described yet. Here we report a case of skull base ORN that was successfully treated with hyperbaric oxygen therapy(HBO). A 52-year-old man visited our department complaining of trismus and foul odor. He was diagnosed with nasopharyngeal cancer with multiple lymph node metastasis one year ago and underwent concurrent chemoradiotherapy. On the physical examination, mucopus and crusts with exposed necrotic bone was seen in the right nasopharynx. On the paranasal sinus magnetic resonance imaging, osteoradionecrosis which was extending from the right nasopharynx to the clivus, petrous apex, and cavernous sinus was noted. Nasopharynx biopsy resulted of ulcer with no malignant cells. HBO therapy was performed with debridement of nasopharynx for 3 months. There was no sign of recurrence or residual ORN 18 months after HBO therapy.

• 대한두경부종양학회지
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• 제13권2호
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• pp.251-255
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• 1997

저자들은 30여년전 비인강 혈관 섬유종으로 방사선 치료를 받은 남자환자의 하악골에 발생한 방사선 속발골육종 1예를 경험하였기에 문헌 고찰과 함께 보고하는 바이다.

• Tuberculosis and Respiratory Diseases
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• 제39권4호
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• pp.361-365
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• 1992

저자들은 매우 드문 것으로 알려진 순수하게 종격동에서 발생한 낭포성 임파관종 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다.

• 대한기관식도과학회지
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• 제18권1호
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• pp.13-18
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• 2012

Objective This study was conducted to gather basic information of 3D CT in detecting and gaining information of esophageal foreign body (FB) models. Materials and Methods The chest model was made using PVC bottle, rubber balloon and plaster. Fish bone, Persimmon stone were used to mimic foreign bodies of esophageal model. The foreign body models were inserted into the balloon removing air from it and the balloon was sealed. The esophageal FB model was inserted into the chest model. The remaining space in the chest model was filled with fish paste and water to simulate soft tissue around esophagus. CT of chest model was reconstructed three-dimensionally by Rapidia software to make images of foreign body models. The axial CT, MPR image and VOI image were compared with real foreign body materials as to shape, size, location and orientation. Results Esophageal FB models were easily made. CT data gave good 3D images and showed realistic foreign body materials. Conclusion The results indicate the usefulness of 3D CT technique to help in diagnosis of esophageal foreign body models.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제40권
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• pp.31.1-31.8
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• 2018

Background: Verrucous carcinoma (VC) accounts for 1-10% of cases of squamous cell carcinoma (SCC) in the oral cavity, and 75% of VC occur in the oral cavity. Only 3% of primary intraosseous squamous cell carcinomas (PIOSCC), which means SCC occurring primarily in the bone, are VC. Verrucous carcinoma arising from odontogenic cysts (OC) is very rare, with only seven cases reported to date. Case presentation: This study reported a case of a patient who underwent partial maxillectomy and neck dissection for VC that occurred in the right anterior maxilla. The patient was admitted to the emergency department at our institution 8 years ago and showed cystic lesions in the anterior maxilla on facial computed tomography (CT) images. Treatment through other departments including assessment of laceration in the mental region and only suture was performed. This report highlights a very rare case of VC in the right anterior maxilla arising from a previous cystic lesion. Conclusions: Since PIOSCC can arise from OC, appropriate treatment of intraosseous cysts and regular radiologic evaluation are necesssary. Surgical exicision of the primary lesion without neck dissection can lead to good prognosis for patients with primary intraosseous verrucous carcinoma.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제33권5호
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• pp.548-553
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• 2007

Several investigators have shown that human papillomavirus(HPV) appear to play an etiologic role in oral and paranasal sinus carcinoma. It was known that 15-25% of head and neck squamous cell carcinoma(SCC) showed HPV-positive infection. Among them, HPV 16 was the most common type but HPV 18 was observed only 2-4% of HPV-positive head and neck cancers. In recent, we treated uncommon 2 oral SCC cases that associated with HPV infection. One is a case of tongue SCC after bone marrow transplantation(BMT), and the other is a case of SCC occurring with aspergillosis in the maxillary sinus. After surgery, HPV 16 and 18 were detected in the surgical specimens by the histological and polymerase chain reaction(PCR) examination. In this report, we present these cases with a review of literature.