• Clinics in Shoulder and Elbow
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• 제13권2호
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• pp.202-208
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• 2010

목적: 상완골 근위부 골절에 대하여 최소 침습적 금속판 술식을 시행하고, 임상 결과를 분석하여 유용성을 알아보고자 하였다. 대상 및 방법: 상완골 근위부 골절에 대하여 최소 침습적 금속판 술식을 시행한 27명을 대상으로 하였다. 골절 분류는 2분 골절 16예, 3분 골절 10예였으며, 4분 골절 1예가 포함되었다. 임상적 평가는 UCLA 점수와 KSS 점수 및 운동 범위 회복 정도와 합병증 발생 여부를 조사하였으며, 방사선학적으로는 골유합 기간과 경간각 회복 정도를 평가하였다. 평균 추시 기간은 19개월이었다. 결과: 최종 추시에서 UCLA 점수는 우수가 15예, 양호가 12예였으며 KSS 점수는 평균 91.4점이었다. 또한 최종 견관절 운동 범위는 전방 거상이 평균 $167.2^{\circ}$로 측정되었다. 모든 환자에서 수술 후 평균 14.1주에 골유합을 얻었으며, 경간각 회복 정도는 우수가 24예였으며 보통이 3예였다. 액와 신경 마비나 심부 감염, 금속판의 충돌 증후군 등의 합병증은 발생하지 않았다. 결론: 상완골 근위부 골절에 대한 최소 침습적 금속판 술식은 충분한 해부학적 지식을 숙지하고 시행하면 주변 연부 조직 박리를 최소화하여 합병증 발생을 감소시키고 조기 관절 운동을 가능하게 하므로 상완골 근위부 골절 치료의 효과적인 수술 방법의 하나로 사료된다.

• 대한치과교정학회지
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• 제24권1호
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• pp.37-62
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• 1994

This study was undertaken to investigate the three dimensional vascular changes of periodontal ligament following orthodontic tooth movement. Experimental tooth movement was carried out in 96 Sprague-Dawley rats with the weight of 250g. They were divided into four experimental groups (each 24 rats). The left maxillary first molar was moved mesially with 25g force in group I, and with 75g force in group II. Each three animals were sacrificed after 1, 6, 12, 24 hours, and 3, 7, 14, 21 days. In group III, 25g mesial force was applied for 3 days, and in group IV, 75g mesial force was applied for 3 days. Then the appliances were removed, and each three animals were sacrificed after 1, 6, 12, 24 hours, and 3, 7, 14, 21 days from removal of appliance. The contralateral molars were used for control group. Casting media was injected via left ventricle and polymerized in warm water. After corrosion of surrounding soft tissue, three dimensional vascular changes were examined using scanning electron microscopy. The findings of this study were as follows: 1. Pressure side of group I and II showed degenerative vascular changes such as vascular compression, reduction of vasculature, leakage of casting media. But, regenerative changes were dominant after 7 days of tooth movement. Although the degenerative vascular changes were more severe in group II, which was exposed to heavy force, the timing of these changes was not different between two groups. 2. Periodontal vasculature was reestablished by the growth of new capillaries and their differentiation and union from the remaining periodontal vessels and vessels of alveolar bone marrow. Although vascular regeneration was more rapid in group I, which was exposed to light force, the vasculature was not fully normalized in both groups even after 21 days. 3. There was no remarkable changes in tension side of group I and II, but looping of capillary, new capillary growth, dilation of vessels, redirection of vessels in the direction of tensile force were occurred. 4. In pressure side of group III and IV, in which appliance was removed after 3 days of orthodontic force, bone resorption was continued even after removal of appliance. Regeneration of vasculature was initiated after 1-6 hours, and it was more rapid in group III than group IV. In both groups, the vasculature was not fully normalized even after 21 days. 5. After removal of appliance, tension side of group III and IV showed vascular compression and loss of vasculature.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제13권2호
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• pp.129-136
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• 1991

Fibrin Sealants 는 과거 간, 비장, 신장등의 일반외과 수술에서 단순한 외과적 봉합으로는 해결하지 못하는 넓은 면적의 조직의 유착을 위하여 1940 년경 부터 개발되기 시작한 것으로 악안면 영역에서는 1970 년대 중반부터 미세신경접합술과 피부이식을 위하여 사용되기 시작한 후, 현재, 골이식후의 골세편의 고정, 혈관봉합술, 연조직에서 조직들의 유착과 지혈, 그리고 혈관종의 치유등을 목적으로도 광범위하게 연구되고 사용되고 있다. 이것은 인체에서 채취한 혈액응고인자 XIII 을 포함하는 Fibrinogen 성분과, 소에서 추출한 Thrombin 의 두가지 주요 성분으로 구성되며, Fibrinogen 용해제인 Aprotinin 액과 Thrombin 용해제인 염화칼슘액과 함께 네부분으로 구성된다. 각제품에 따라 그리고 사용된 농도에 따라 차이는 있으나, 대개 수분후에 조직이 응고되어 달라붙기 시작하고, 수시간후에 최대접착효과에 도달하며, 응고된 접착효과는 12 일에서 15 일간 유지되고 그후 정상적인 섬유소분해작용과 식세포활동에 의하여 분해된다. 저자는최근 6 개월간 서울대학교병원 구강악안면외과에서 28 명의 각종 질환 및 기형 환자에서 미세신경봉합술, 피부이식, 악교정성형술과 구개파열 또는 하악골 재건을 요하는 환자의 골이식후의 골세편의 고정, 경부곽청술이나 종양제거술후 각종 피부판 또는 근피판을 이용한 연조직의 적합, 혈관종의 처치, 후이개접근 법에 의한 악관절수술후의 외이도의 접합등 다양한 목적을 위하여 적용된 Fibrin Sealants 를 사용하여 양호한 결과를 얻었기에 보고하는 바이다.

• 대한골관절종양학회지
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• 제13권1호
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• pp.31-36
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• 2007

목적: 악성 골종양 환자에서 사지구제술 후 결손부위의 재건방법 중 체외 방사선 조사를 이용한 재활용 자가골 이식술이 한 방법으로 시행되고 있다. 그러나 관절주위에서 발생한 종양의 수술시 관절 내 절제술 및 재활용 자가 관절이식술 시행 후 발생하는 관절의 불안정성, 진행되는 관절염 등의 단점이 있다. 이러한 단점을 보완하기 위해 생각되어진 관절외 절제술 및 체외 방사선 조사를 이용한 재활용 전 자가 관절 이식술을 시행하여 그 결과를 알아보고자 하였다. 대상 및 방법: 1997년 6월부터 2006년 2월까지 슬관절 주위의 악성 골종양으로 진단받고, 동일한 수술을 시행한 5례를 대상으로 하였다. 추시 중 합병증과 재발의 유무를 확인하기 위해 주기적 진찰 및 검사를 시행하였다. 추시 기간은 최단 93개월에서 최고 105개월로 평균 100개월이었으며, 평균 나이는 21.6세였다. 결과: 단순 방사선상 골 유합기간은 평균 15.6개월(9~40개월)이었으며, Enneking 기준의 기능적 평가결과 평균 71.6%(66.6~80%)였으며 재발은 1례도 없었다. 합병증은 골단부 붕괴 3례, 관절 불안정성 5례가 발생하였고, 전례에서 종양 대치물로 관절 치환술을 시행하였다. 결론: 슬관절 주위에 원발성 골종양이 발생한 경우 체외 방사선 조사를 이용한 재활용 전자가 관절이식술은 관절 불안정성을 일으켜 영구적인 관절 기능을 유지하지 못하므로 종양 대치물의 사용이 적절할 것으로 생각된다.

• 대한골관절종양학회지
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• 제13권1호
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• pp.37-42
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• 2007

목적: 원발성 및 전이성 척추종양의 치료는 해부학적 특성상 근치적 광범위 절제술이 용이하지 않다. 원발성 및 전이성 척추종양에 대해 다양한 수술을 시도하였으며, 그 중 전 척추절제술이 양호한 임상결과를 보여, 본원에서 원발성 및 전이성 척추종양으로 전 척추절제술을 받은 5례를 대상으로 임상적, 방사선학적 결과를 분석하였다. 대상 및 방법: 1997년 6월부터 2006년 1월까지 본원 정형외과에서 치료하였던 환자 중 전 척추절제술을 받고 추시 관찰이 가능했던 원발성 척추종양 1례와 전이성 척추종양 4례를 대상으로 하였다. 전이성 척추종양의 원발 병소는 신장암 2례, 유방암 1례, 원발 병소 불명의 선암 1례였다. 전 척추절제술의 임상적 평가 방법으로 동통과 신경학적 증상을 McAfee의 4 point scale과 VAS(Visual Analogue Scale), 및 Frankel 분류를 이용하여 관찰하였다. 술 후 3개월마다 반복적인 이학적 검사를 시행하였으며, 단순 방사선촬영으로 국소 재발 및 골유합, 합병증을 관찰하였다. 결과: 동통의 평가는 McAfee scale에서 술 전 평균 3에서 술 후 평균 1.6으로 감소하였고, VAS는 술 전 평균 9.2에서 1.6으로 감소하였다. 술 후 신경학적 결손은 Frankel 분류 C에서 D로 호전되었다. 추시기간 중 제 4요추의 전이성 선암 1례에서 국소 재발이 관찰되었다. 결론: 전 척추절제술은 척수 신경을 완전하게 감압시키고 골격통을 신속하게 감소시키며 생존 기간 동안 삶의 질을 높이는 유용한 술식이다.

• Journal of Korean Neurosurgical Society
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• 제48권5호
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• pp.412-418
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• 2010

Objective : To evaluate the clinical and radiological outcomes of lumbar interbody fusion and its correlation with various factors (e.g., age, comorbidities, fusion level, bone quality) in patients over and under 65 years of age who underwent lumbar fusion surgery for degenerative lumbar disease. Methods : One-hundred-thirty-three patients with lumbar degenerative disease underwent lumbar fusion surgery between June 2006 and June 2007 and were followed for more than one year. Forty-eight (361%) were older than 65 years of age (group A) and 85 (63.9%) were under 65 years of age (group B). Diagnosis, comorbidities, length of hospital stay, and perioperative complications were recorded. The analysis of clinical outcomes was based on the visual analogue scale (VAS). Radiological results were evaluated using plain radiographs. Clinical outcomes, radiological outcomes, length of hospital stay, and complication rates were analyzed in relation to lumbar fusion level, the number of comorbidities, bone mineral density (BMD), and age. Results : The mean age of the patients was 61.2 years (range, 33-86 years) and the mean BMD was -2.2 (range, -4.8 to -2.8). The mean length of hospital stay was 15.0 days (range, 5-60 days) and the mean follow-up was 23.0 months (range, 18-30 months). Eighty-five (64.0%) patients had more than one preoperative comorbidities. Perioperative complications occurred in 27 of 133 patients (20.3%). The incidence of overall complication was 22.9% in group A, and 18.8% in group B but there was no statistical difference between the two groups. The mean VAS scores for the back and leg were significantly decreased in both groups (p < 0.05), and bony fusion was achieved in 125 of 133 patients (94.0%). There was no significant difference in bony union rates between groups A and B (91.7% in group A vs. 95.3% in group B, p = 0.398). In group A. perioperative complications were more common with the increase in fusion level (p = 0.027). Perioperative complications in both groups A (p = 0.035) and B (p = 0.044) increased with an increasing number of comorbidities. Conclusion : Elderly patients with comorbidities are at a high risk for complications and adverse outcomes after lumbar spine surgery. In our study, clinical outcomes, fusion rates, and perioperative complication rates in older patients were comparable with those in younger populations. The number of comorbidities and the extent of fusion level were significant factors in predicting the occurrence of postoperative complications. However, proper perioperative general supportive care with a thorough fusion strategy during the operation could improve the overall postoperative outcomes in lumbar fusion surgery for elderly patients.

• Clinics in Shoulder and Elbow
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• 제16권2호
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• pp.130-134
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• 2013

견봉 골절의 진단 및 치료 지연으로 발생한 통증을 동반한 가관절증은 수술적 치료를 요한다. 견봉은 두께가 얇은 편평골이므로 견고한 고정이 어렵기 때문에 견봉에서 발생한 가관절증의 치료는 매우 어렵다. 52세 다발성 외상환자에서 발생한 전위가 없는 견봉 골절을 보행 재활을 시작하며 통증이 유발될 때까지 발견하지 못하였다. 원위 요골용 가변각 잠김 금속판을 이용한 내고정술 및 자가 장골 이식술을 시행하였다. 술 후 9개월째 극상건 부분 파열이 있어, 관절경하 극상건 봉합술을 시행하였다. 술 후 9개월째 방사선 검사상 완전한 골유합을 얻었다. 극상건 봉합술 3개월 후 통증이 완화되었으며, 견관절 기능이 정상화되었다. 견고한 고정이 어려운 견봉 불유합 및 가관절증 증례에서 좋은 결과를 얻어 보고한다.

• 대한족부족관절학회지
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• 제25권3호
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• pp.111-116
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• 2021

Purpose: Variations in the preferred conservative and operative treatment methods for ankle arthritis may be observed in the practice of orthopedic surgeons. This study is based on the Korean Foot and Ankle Society (KFAS) member survey and aims to report the current trend and changes in the management of ankle arthritis over the last few decades. Materials and Methods: A web-based questionnaire containing 24 questions was sent to all KFAS members in July 2021. The questions were mainly related to the preferred techniques and clinical experience in osteotomy, arthrodesis, and total ankle arthroplasty (TAA) for patients with ankle arthritis. Results: Sixty-three out of 550 surgeons (11.5%) responded to the survey. The responses to 6 out of the total of 24 questions (25.0%) achieved the levels needed to reflect a tendency. Answers that showed a tendency were related to the following: a surgical approach for arthrodesis (anterior approach), use of auto-bone graft for arthrodesis (iliac bone), a nonunion rate of more than 10% following arthrodesis, main reason related to unsatisfactory results after arthrodesis (nonunion or delayed union), the main reason to change total ankle prosthesis (unstable supply of prosthesis), the unusualness of revision TAA and conversion of fusion to TAA. Diversity was found in several aspects of treatment (degree of experience and satisfaction in supramalleolar osteotomy, fixation method for arthrodesis, preferred TAA prosthesis and longevity, degree of experinece, annual number of TAA operation. Conclusion: This study proposes updated information with regard to the current trends in the management of ankle arthritis in Korea. Both consensus and variations in the approach to patients with ankle arthritis were identified through this survey. With an increasing preference for TAA, the need for the development of a prosthesis optimized for Koreans and a stable supply of prostheses were the suggestions made by the study.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제12권1호
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• pp.1-13
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• 1990

The main objectives of this study was to observe the effects of hyperbaric oxygen therapy on the healing processes of mandibular fracture of streptozotocin-induced diabetic rats. Author used 60 rats (Sprague-Dawley Strain) deviding into control(30) and experimental groups(30). Complete fracture was produced on the left mandibular body of 60rats, rendered hyperbaric oxygen therapy (2 hrs. daily at 2.5 atm.) on experimental group and observed effects of hyperbaric oxygen therapy by microscopically. The obtained results were as follows; 1. Infiltration of inflammatory cells was no significant differences between the control and experimental group until 3rd week, but experimental group showed decreasing tendency after 4th week. 2. Severe proliferation of fibroblasts showed rather rapider in experimental group, at 2nd week, while at 3rd week in control group. 3. Osteoclasts appeared at 1st week in experimental group while at 3rd week in control group, and experimental group showed early bone resorption pattern. 4. Osteoblasts appeared at 1st week in experimental group while at 3rd week in control group, and experimental group showed prominent osteoblastic activity. 5. Moderate proliferation of capillary blood vessels showed in initial stage of experimental group while mild proliferation at 1-2nd week in control group. 6. Formation of cartilaginous callus showed at 4th week in experimental group, while at 6th week in control group. 7. Formation of bony callus showed mildly at 5th week, and moderately at 6th week in experimental group, while no appearance in control group, but complete bony union was not observed even in experimental group throughout this experiment.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제15권2호
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• pp.129-136
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• 1993

The purpose of this study is to evaluate whether the ashed tooth powder is utilized as an alternative material of the implant. For this purpose the author performed the experimental study to investigate the tissue response of sintered toothash and its histocompatibility. Bony defects to expose the body of marrow, $1{\times}1cm$ in size, were created in the right and left mandibular body of mature dog, and then the ashed tooth powders were filled in right side and the blood clot was filled in the left side as an control. The dogs were sacrificed at 4th, 7th, and 16th week after implantation and histologic examination was performed. The results of this study were obtained as follows : 1. Any inflammatory response was not noted after implanting of the ashed tooth powder during the whole experimental period. 2. At 4th week, ashed tooth powders were surrounded by mature connective tissue. And we could observe hydroxyapatite crystal structure within the ashed tooth powder. 3. At 7th week, we could observe that macrophage phagocyted the small granules of ashed tooth powders. 4. At 16th week, the union with host bone by growth of new trabeculae was observed. And there were remnants of ashed tooth power within some of new trabeculae.