• Clinics in Shoulder and Elbow
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• 제21권4호
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• pp.252-255
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• 2018

A 51-year-old male who is right-handed visited the outpatient for right fingers-drop. The patient's fingers, including thumb, were not extended on metacarpophalangeal joint. The active motion of the right wrist was available. The electromyography and nerve conduction velocity study were consistent with the posterior interosseous neuropathy. Further evaluation was done with the magnetic resonance imaging for finding the space-occupying lesion or any possible soft tissue lesion around the radial nerve pathway. On magnetic resonance imaging, the ganglion cyst, which was about 1.8 cm in diameter, was observed on the proximal part of the superficial layer of the supinator muscle (Arcade of Frohse). The surgical excision was done on the base of ganglion cyst at the base of stalk of cyst which looked to be connected with proximal radioulnar joint capsule. The palsy had completely resolved when the patient was observed on the outpatient department a month after the operation.

• 대한소아치과학회지
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• 제24권3호
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• pp.543-548
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• 1997

The first permanent molar takes important place in the occlusion. Malposition of the lower first molar is frequently due to mesial migration, which is occurred by early exfoliation of the second deciduous molar or proximal caries of deciduous teeth. Above things happen without any consideration of space maintainer, prompt measures for space regaining have to be started. Especially in the case with early loss of the second deciduous molar, it has been said that there is no suitable appliance for maintaining the space before the eruption of the permanent first molar. In distalizing the upper first molar, headgears have been routinely used, which its result was definitely depended on cooperation of the patients. Nowadays, appliances such as pendulum appliances, K-loop, magnets, which can be used without cooperation of the patients, are introduced. Jones Jig, one of the molar distalizing appliances, was used on the patients who visited department of pediatric dentistry in Seoul National University Dental Hospital complaining of no eruption space for the lower second bicuspid. Either removable splint or lingal arch was used as the anchorage. Jones Jig was favorably used in the lower molar, where vestibule is shallow, and this is a case report on the satisfactory result thereof.

• Clinical and Experimental Pediatrics
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• 제46권12호
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• pp.1242-1247
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• 2003

목 적 : 다른 특별한 병력이 없는 영아들에서 흡인으로 인한 만성 기침이 의심되는 경우, 상부 식도 24시간 pH 검사를 시행하여, 그 결과를 일반적으로 위식도 역류를 진단하기 위해 시행하는 하부 식도 24시간 pH 검사의 결과치와 비교하여 상부 식도 24시간 pH 검사에 대한 유용성을 평가하고자 하였다. 방 법 : 3주 이상의 만성 기침을 주소로 인하대병원 소아과에 입원한 1세 이하 영아들 중, 흉부 단순 촬영상 특이소견이 없고 그 원인이 뚜렷하지 않은 환아들을 상대로 흉부 전산화 단층 촬영을 시행한 결과, 의존성 위치에서 폐 경화를 보여 역류로 인한 흡인의 가능성이 높은 17명의 환아들을 본 연구의 대상으로 하여 상부와 하부 식도 24시간 pH 검사를 시행하였다. 결 과 : 1) 대상 환아는 17명(남아 12명, 여아 5명)으로 평균 연령은 4.3개월($4.3{\pm}1.8$개월)이었다. 2) 총 17명의 환아들 중, 상부 식도에서 병적인 위산 역류를 보인 환아는 15명(88.2%)이었고, 하부 식도에서는 4명(23.5%)으로, 상부 식도에서 이상 소견을 보인 환아들이 더 많았다(P<0.01). 하부 식도에서 정상 범위의 역류를 보이더라도 상부 식도에서 병적인 역류를 보이는 경우는 13명 중 12명(92.3%)이었다. 3) 상부 식도 24시간 pH 검사에서 역류지표와 역류빈도가 하부 식도 24시간 pH 검사에서보다 통계적으로 의미 있게 낮았다(P<0.05). 4) 하부 식도 24시간 pH 검사 결과와 상부 식도 24시간 pH 검사 결과들 사이에는 상관관계가 없었다. 5) 하부 식도 24시간 pH 검사에 있어서, 위식도 역류로 진단을 받은 군(group 1)과 정상으로 진단을 받은 군(group 2)의 상부 식도 24시간 pH 검사 결과와의 차이를 비교했을 때, group 2에서 상부 식도에서도 역류빈도가 통계적으로 의미 있게 낮았다(P<0.05). 결 론 : 만성 기침을 보이는 영아들에 있어서 뚜렷한 위식도 역류 증상은 없지만 위식도 역류에 의한 흡인이 의심되는 경우에 상부 식도 24시간 pH 검사가 필수적인 진단 방법으로 제시하는 것에 본 연구의 의의가 있다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1997년도 추계학술대회 논문집
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• pp.519-522
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• 1997

In this study, the collision free path planning method of the articulated manipulator using sequential search is proposed. This method is to find the joint path of the manipulator with many degrees of freedom from the distal joint to the proximal one. To do this, the initial work space of the gantry manipulator, which is a remote maintenance equipment of the radioactive environment, is defined from the condition that the distal joint configuration is determined by the posture of maintenance. Then, 2-dimensional configuration space with the obstacle area is represented and the collision free path of manipulator is searched in the configuration space. And, this method is verified using the graphic simulation in virtual workcell for the spent fuel disassembling processes. The result of this study can be effectively used in implementing the maintenance processes for the hot cell equipment and enhance the reliability of the spent fuel management.

• Archives of Plastic Surgery
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• 제34권1호
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• pp.64-69
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• 2007

Purpose: The key of treatment in syndactyly is to separate the fused digits safely, and to create a normal web space with enough cutaneous coverage. Despite many techniques have described the correction of syndactyly, skin graft still remains the annoying one. We designed the pentagonal flap from hand dorsum to reconstruct the web space reliably and try to minimize the need for skin graft. Methods: Between July 2003 and August 2005, six cases of syndactyly were corrected at UCLA Medical Center and Hallym University Sacred Heart Hospital using dorsal pentagonal flap for web space reconstruction and straight incisions for the sides of digits to minimize the need for skin graft. The proximal edge of the pentagonal flap was designed in V shape to allow for easy closure of the donor site after advancement. The pentagonal flap was advanced volarly with the underlying dermofat tissues to form a digital web. In some cases, skin defects were unavoidable and covered with full thickness skin graft from the inguinal area. Results: Syndactyly were seen in 4 cases of Apert syndrome, 1 postburn scar webbing with PIP joint contracture and 1 recurrence after the incomplete reconstruction. In all Apert syndrome, straight line incision was used along the sides of the fingers and skin graft was needed. But, in 2 cases of incomplete type, we could save the need for skin graft only for the correction of syndactyly. We could get a good looking web space without any complications such as flap or graft loss. Conclusion: As a modification of Sherif's V-Y dorsal metacarpal flap, we believe pentagonal flap could be one of the easiest and safest way to reconstruct the web space of syndactyly in functional and cosmetic standpoint.

• Clinics in Shoulder and Elbow
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• 제15권2호
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• pp.109-116
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• 2012

목적: 주관절부 척골 신경병증에서 술 전에 시행한 초음파 소견과 그 유용성에 대하여 알아보고자 하였다. 대상 및 방법: 척골 신경병증을 진단 받고 술 전 초음파 검사를 시행한 22예를 대상으로 하였다. 장축 영상을 통해 척골 신경의 주행 경로, 위치, 굵기와 신경 주위 공간 점유 병소 등을 확인하였고, 단축 영상을 통해 내상과 근위부 3 cm, 후방, 원위부 3 cm에서의 단면적 및 척골 신경 부종비를 측정하여 전기 생리학적 검사 및 술 전 임상적 평가와의 연관성을 파악하였다. 결과: 초음파 검사상 총 22예 중 21예 (95.5%)에서 주관절 내상과 후방부에 척골 신경의 미만성 부종 소견이 관찰되었다. 이 중 공간 점유 병소는 4예로, 결절성 낭종이 3예, 이소성 골화가 1예 있었다. 내상과 부위 척골 신경의 평균 단면적이 근위부 및 원위부의 평균 단면적보다 통계학적으로 유의하게 컸다 (p<0.05). 척골 신경 부종 비는 전기 생리학적 검사 및 술 전 임상적 평가와 통계학적 유의성을 가지지 않았다 (p>0.05). 결론: 주관절부 척골 신경병증에서의 초음파 검사로 신경의 형태학적 변화를 알 수 있을 뿐만 아니라 공간 점유 병소 또는 신경 탈구 등의 원인을 파악하는데 도움이 되었다. 초음파 검사는 전기 생리학적 검사와 더불어 척골 신경병증의 정확한 진단 및 치료 방법의 선택에 유용한 방법으로 판단된다.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제37권3호
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• pp.184-194
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• 2011

The dorsalis pedis artery (DPA) was renamed from the anterior tibialis artery after it passed under the extensor retinaculum, and DPA travels between the extensor hallucis longus and extensor digitorum longus muscle along the dorsum of the foot. After giving off the proximal and distal tarsal, arcuate and medial tarsal branches, DPA enters the proximal first intermetatarsal space via the first dorsal metatarsal artery (FDMA), which courses over the first dorsal interosseous muscle (FDIM). For detailed knowledge of the neurovascular anatomy of a dorsalis pedis artery flap (DPAF) as a routine reconstructive procedure after the resection of oral malignant tumors, the precise neurovascular anatomy of DPAF must be studied along the DPA courses as above. In this first review article in the Korean language, the anatomical basis of DPAF is summarized and discussed after a delicate investigation of more than 35 recent articles and atlas textbooks. Many advantages of DPAF, such as a consistent flap vascular anatomy, acceptable donor site morbidity, and the ability to perform simultaneous flap harvest using oral cancer ablation procedures, and additional important risks with the pitfalls of DPAF were emphasized. This article will be helpful, particularly for young doctors during the special curriculum periods for the Korean National Board of Specialists in the field of oral and maxillofacial surgery, plastic surgery, otolaryngology, orthopedic surgery, etc.

• Restorative Dentistry and Endodontics
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• 제37권3호
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• pp.165-169
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• 2012

Closure of interdental spaces using proximal build-ups with resin composite is considered to be practical and conservative. However, a comprehensive approach combining two or more treatment modalities may be needed to improve esthetics. This case report describes the management of a patient with multiple diastemas, a peg-shaped lateral incisor and midline deviation in the maxillary anterior area. Direct resin bonding along with orthodontic movement of teeth allows space closure and midline correction, consequently, creating a better esthetic result.

• Journal of Chest Surgery
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• 제25권1호
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• pp.105-111
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• 1992

Total atherosclerotic obstruction of the juxtarenal abdominal aorta is a relatively rarely encountered form of atherosclerotic vascsular disease, accounting for less than 5% of all arterial obstrutive disease. We have encountered two patients with such lesions, both of whom were admitted for intermittent claudication of the lower extremities and symptoms of vascular ischemia. Digital subtraction angiography[DSA] was performed on both patients, the results of which revealed total obstruction of the aorta just inferior to the renal arteries without involving the latter. Operative technique involved the use of the sup-raceliac aorta as the site of proximal anastomosis of aortofemoral bypass followed by a fem-orofemoral bypass graft with Smm sized Woven Dacron[Vascutek] through a subcutaneous tunnel within the retroperitoneal space. Both patients experienced restoration of blood flow distal to the obstruction postoperatively without any complications, and OPD follow-up one month postoperatively and postoperative DSA showed evidence of continued graft patency with persistent symptomatic improvement.

• Journal of Korean Neurosurgical Society
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• 제53권6호
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• pp.383-385
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• 2013

We present an unusual case of peritoneal catheter migration following a ventriculoperitoneal shunt operation. A 7-month-old infant, who had suffered from intraventricular hemorrhage at birth, was shunted for progressive hydrocephalus. The peritoneal catheter, connected to an 'ultra small, low pressure valve system' (Strata$^{(R)}$; PS Medical,Gola, CA, USA) at the subgaleal space, was placed into the peritoneal cavity about 30 cm in length. The patient returned to our hospital due to scalp swelling 21 days after the surgery. Simple X-ray images revealed total upward migration and coiling of the peritoneal catheter around the valve. Possible mechanisms leading to proximal upward migration of a peritoneal catheter are discussed.