• Journal of the korean academy of Pediatric Dentistry
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• v.36 no.3
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• pp.464-474
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• 2009

To distalize the maxillary molars, the traditional techniques such as extra-oral traction, Wilson distalizing arches, removable spring appliances and Schwarz plate-type appliances have been used. But, these need considerable patient cooperation. For minimal patient compliance, many practitioners use the pendulum appliances. Several clinical studies demonstrated pendulum is effective molar distalization appliance in the growing patient(using the premolars and the palate as anchorage). But unfortunately, maxillary anterior teeth also shift mesially as the molar moves distally. As a result anchorage loss is occurred. To overcome these disadvantages, we used bone-supported pendulum, combined the conventional pendulum with Skeletal Anchorage System(SAS). The miniscrew was implanted in the anterior paramedian region of the median palatal suture, which has comparatively sufficient bone thickness and is low risk to damage on the dental follicles. We report three cases, using bone-supported pendulum for the maxillary molar distalization in children. After treatment, we find out anchorage stability, minimal unfavorable anterior tooth movement and sufficient molar distalization.

• The korean journal of orthodontics
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• v.28 no.3 s.68
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• pp.479-486
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• 1998

Bimaxillary Protrusion can be treated effectively in growing patients and in adults with conventional orthodontic therapy. However, In the adult patient, combined surgical and orthodontic treatment modalities may offer distinct advantages over such conventional therapy. In those cases complicate by vertical jaw dysplasia, sagittal dysplasia, or transverse skeletal discrepancy in addition to bimaxillary protrusion, the possibilities of obtaining successful results through orthodontic treatment alone greatly diminish. Surgical retraction of both maxillary and mandibular anterior segments with subapical osteotomies and ostectomies in the extraction site may be a good treatment alternative. Treatment time and possible adverse effects of lengthy orthodontic therapy may be reduced and optimum esthetic improvement may be facilitated. On the following cases, patient who had bimaxillary protrusion with Angle class III malocclusion was treated with combined orthodontic - surgical therapy by anterior subapical segmental osteotomies.

• Clinics in Shoulder and Elbow
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• v.14 no.1
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• pp.27-34
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• 2011

Purpose: We examined the clinical and radiological outcomes for displaced proximal humerus fractures that were treated with a PHILOS angular stable plate. Materials and Method: Forty four patients who underwent surgery between March 2007 and February 2010 were included in this study. All the cases were followed up for an average of 12 months. All the patients were examined and interviewed using the Visual Analog Scale (VAS) score, the Constant score and standardized X-rays to check the neck-shaft angle (NSA) and the presence of medial support. Results: The average Visual Analog Scale score was 2.8 points and the average Constant score was 70.5 points. The average neck shaft angle was $122.5^{\circ}$ and this was statistically significant between the good result group and the poor result group. There were 36 cases of the presence of medial support and 8 cases of the absence of medial support and the difference was statistically significant. Complications such as fixation failure happened in 12 cases. Conclusion: PHILOS angular stable plate fixation as an operative treatment for displaced proximal humerus fractures is a good and reliable treatment option.

• Journal of Korean Orthopaedic Sports Medicine
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• v.7 no.1
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• pp.55-57
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• 2008

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.

• The Journal of Korean Academy of Prosthodontics
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• v.35 no.3
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• pp.609-621
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• 1997

• The Journal of the Korean bone and joint tumor society
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• v.17 no.2
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• pp.73-78
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• 2011

Purpose: This study was aimed to evaluate the result of inlay cortical strut bone grafts for large cysts or cavitary bone lesions in long bones. Materials and Methods: Seven patients with large cyst or cavitary bony lesions were managed with curettage, allogeneic inlay cortical strut and cancellous bone grafts. Additional plate and screw fixations were performed in 6 patients. There were three SBCs, two FDs with secondary ABC changes, one FD and one post-cement spacer removal state. Three of them had pathologic fractures. Progression of bone healing and mechanical support and functional result were evaluated. The mean follow-up period was 25.4 months. Results: Incorporations into host bones were progressed in all, average 4.2 months in six metaphyseal regions and 5.8 months in five diaphyseal regions respectively. Full structural supports were achieved in all except one patient without any additional procedures. No allograft-related complication was developed. Mean functional score according to the MSTS criteria was 29.6 at last follow up. Conclusion: Inlay cortical strut graft provided additional mechanical stability and bone stock for screw purchase in large cyst or cavitary defects of long bones, which allow early mobilization and excellent functional outcome.

• The Journal of Korean Physical Therapy
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• v.12 no.2
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• pp.255-265
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• 2000

The term 'myositis ossificans' encompasses four categories of clinicopathological disorders. The first, myositis ossificans progressive(fibrodysplasia ossificans progressive), is a rare genetic disease characterized by progressive heterotopic ossification involving skeletal muscle, tendon, ligaments, and fascia, with congenital malformation of the great toes, and usually microdactyly, monophalangism, and mal formed proximal phalanges. with valgus deformity of metatarsophalangeal joint. The ossification begins shortly after birth and may contribute to the patient's death. The second, heterotopic ossificans, can occur in patients with neuromuscular and chronic diseases such as paraplegia, poliomyelitis, polymyositis, bum, tetanus, and infection. But the lesions in these cases often lack the typical histologic features of myositis ossificans. The third, myositis ossificans traumatica, is the most common; it develops in response to soft tissue trauma such as a single severe injury, minor repetitive injures, fracture, joint dislocation, stab wound, or surgical incision. The forth, nontraumatic myositis ossificans, also designated :pseudomalignant osseous tumors of extraskeletal soft tissues' and 'psedomalignant myositis ossificans', occurs in persons repeated small mechanical injures or nonmechanical soft tissue injuries due to local ischemia, inflammation. or other factors cannot be ruled out in such cases.

• The korean journal of orthodontics
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• v.36 no.4
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• pp.295-307
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• 2006

Objective: The purpose of this study was to compare the histological and biomechanical characteristics of self-tapping and self-drilling microscrew implants. Methods: 112 microscrew implants (56 self-drilling and 56 self-tapping) were placed into the tibia of 28 rabbits. The implants were loaded immediately with no force, light (100 gm), or heavy force (200 gm) with nickel-titanium coil springs. The animals were sacrificed at 3- and 5-weeks after placement and histologic and histomorphometric analysis were performed under a microscope. Results: All microscrew implants stayed firm throughout the experiment. There was no significant difference between self-drilling and self-tapping microscrew implants both in peak insertion and removal torques. Histologic examinations showed there were more defects in the self-tapping than the self-drilling microscrew implants, and newly formed immature bone was increased at the interface in the self-tapping 5-week group. There was proliferation of bone towards the outer surface of the implant and/or toward the marrow space in the self-drilling group. Histologically, self-drilling microscrew implants provided more bone contact initially but the two methods became similar at 5 weeks. Conclusion: These results indicate the two methods can be used for microscrew implant placement, but when using self-tapping microscrew implants, it seems better to use light force in the early stages.

• The korean journal of orthodontics
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• v.37 no.2 s.121
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• pp.98-113
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• 2007

Objective: The purpose of this study was to evaluate the displacement pattern and the stress distribution shown on a finite element model 3-D visualization of a dry human skull using CT during the retraction of upper anterior teeth. Methods: Experimental groups were differentiated into 8 groups according to corticotomy, anchorage (buccal: mini implant between the maxillary second premolar and first molar and second premolar reinforced with a mini Implant, palatal: mini implant between the maxillary first molar and second molar and mini implant on the midpalatal suture) and force application point (use of a power arm or not). Results: In cases where anterior teeth were retracted by a conventional T-loop arch wire, the anterior teeth tipped more postero-inferiorly and the posterior teeth moved slightly in a mesial direction. In cases where anterior teeth were retracted with corticotomy, the stress at the anterior bone segment was distributed widely and showed a smaller degree of tipping movement of the anterior teeth, but with a greater amount of displacement. In cases where anterior teeth were retracted from the buccal side with force applied to the mini implant placed between the maxillary second premolar and the first molar to the canine power arm, it showed that a smaller degree of tipping movement was generated than when force was applied to the second premolar reinforced with a mini implant from the canine bracket. In cases where anterior teeth were retracted from the palatal side with force applied to the mini implant on the midpalatal suture, it resulted in a greater degree of tipping movement than when force was applied to the mini implant between the maxillary first and second molars. Conclusion: The results of this study verifies the effects of corticotomies and the effects of controlling orthodontic force vectors during tooth movement.

• Journal of Korean Medical classics
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• v.19 no.3
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• pp.47-64
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• 2006

籬위제고화가심대청대정골추나요법적인식화이해(爲提高和加深對淸代正骨推拿寮法的認識和理解), 특선어차방면의의교심차유의사문환가치적(特選於此方面意義較深且有醫史文歡價値的) ${\ulcorner}$의종금감(醫宗金鑑) 정골심법요지(正骨心法要旨)${\lrcorner}$ 중적(中的) ${\ulcorner}$외치법(外治法)${\lrcorner}$ 진행료연구(進行了硏究), 획득여하연구결과(獲得如下硏究結果). 기수법총론부분(其手法總論部分), 파요지규정료정골수법적정의급기중요성(擺要地規定了正骨手法的定義及其重要性), 후유증적예방(後遺症的預防), 안환자원기강약이수요주의적사항(按患者元氣强弱而需要注意的事項), 정골의생적기본공화심이소질등문제(正骨醫生的基本功和心理素質等問題). 기정골수법부분(其正骨手法部分), 포괄모(包括模) 접(接) 단(端) 제(提) 접(按) 나(摩) 추(推) 나등팔법(拿等八法), 각법지적응증용현대용어해석여하(各法之適應症用現代用語解釋如下): 모법용어촉진(模法用於觸診), 접법용어골절치료(接法用於骨折治療), 단법용어탈위치료(端法用於脫位治療), 제법용어견인법(提法用於牽引法), 안마법용어연조직손상화골착건적치료(按摩法用於軟組織損傷和骨錯鍵的治療), 추나법용어절적운동(推拿法用於節的運動) 부리화관절적부완전결합적치료(不利和關節的不完全結合的治療). 기기구총론부분(其器具總論部分), 개소료십종정골치료용기구(介紹了十種正骨治療用器具), 각종기구적적응증급기효능용현대용어해석여하(各種器具的適應症及其效能用現代用語解釋如下): 이렴구유보호환부적효과(裏簾具有保護患部的效果), 진정용어동통(振挺用於疼痛) 부종(浮鍾) 경결적치료(硬結的治療), 피견용어견관절탈구적고정료법(被肩用於肩關節脫臼的固定療法), 격색속어리용자아체중적견인료법(擊索屬於利用自我體重的牽引療法), 루관속어분부동계단이용자아체중진행견인적료법(壘觀屬於分不同階段利用自我體重進行牽引的療法), 통목속어포추지압축성골절적래목치료용구(通木屬於胞推之壓縮性骨折的來木治療用具), 요주구유대요추골급기근육이상적부가보호대효과(腰柱具有對腰推骨及其筋肉異常的附加保護帶效果), 죽렴용어골절적고정치료(竹簾用於骨折的固定治療), 삼리구유대골절적쌍중고정효과(杉籬具有對骨折的雙重固定效果), 포슬구유대슬관절적고정효과(抱膝具有對膝關節的固定效果).