• Clinics in Shoulder and Elbow
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• 제4권1호
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• pp.17-23
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• 2001

1990년부터 2000년까지 본원에서 modified Phemister 방법과 cerclage wiring 방법으로 치료하고 1년이상 추시가 가능했던 견봉쇄골관절탈구 환자 24례를 임상적으로 분석하여 다음과 같은 결과를 얻었다. 1. modified Phemister 방법을 시행한 10례에서 우수 8례(80%), 양호 1례(10%), 보통 1례(10%)이었다. 2. Cerclage wiring 방법을 시행한 14례에서 우수 11례(78%), 양호 1례(14%), 보통 1례(14)이었다. 3. 술후 합병증으로 modified Phemister 방법에서 2례에서 고정강선의 파열 및 이동이 있었으며, cerclage wiring 방법에서 2례에서 아탈구, 2례에서 강선의 파열은 있었으나 이동은 없었다. 4. 이상과 같은 결과로 보아 modified Phemister 방법과 cerclage wiring 방법의 비교시 방사선상 오구돌기와 쇄골간 이완의 정도의 차이와 기능상의 차이는 없었으나 견봉쇄골관절을 고정하지 않음으로서 쇄골의 회전운동을 제한하지않고, 외상성관절염을 피할 수 있고, 강선의 파열시 이동이 없어 제거가 쉬워서 cerclage wiring을 선호하였다.

• 한국임상수의학회지
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• 제27권3호
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• pp.240-245
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• 2010

대퇴골 머리의 골괴사는 특발성이며 진행성 질환이다. 골괴사증 연구를 위한 다양한 동물모델이 보고되었지만, 현재까지 표준화된 동물모델은 완성되지 않았다. 본 연구에서 랫드에서 세가지 외과적인 방법으로 유발한 골괴사모델을 비교하였다. 20마리의 SD 랫드 (24주령, 숫컷)를 각 5마리씩 대조군과 세개의 실험군으로 구분하였다. 세가지 외과적인 방법으로 골괴사를 유발하였다. 원인대를 자르고, 대퇴골목의 골막을 절개 (S군), 철사를 대퇴골목에 결찰 (W군), W군과 동일한 방법으로 대퇴골목에 철사를 감은 후, 전기소락기의 끝을 철사에 접촉시켜 소락, 그리고 철사를 제거 (B군). 2주후, 랫드는 안락사하고 대퇴골 머리와 목을 채취하였다. H/E 염색, 사프라닌 O염색, TUNEL 염색을 실시하여 대퇴골 머리의 골과 연골에 골괴사 병변을 평가하였다. 모든 외과적인 방법 (S, W, B군)에서 골괴사가 2주간의 단기간에 유발되었다. 연골부분에 대한 유의적인 괴사변화는 B군에서만 관찰되었다. 철사를 통한 소락 후, 철사를 제거하는 변형된 외과적 방법은 다른 방법에 비해 더욱 효과적으로 골괴사 실험모델을 완성하였다.

• 대한소아치과학회지
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• 제25권2호
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• pp.400-420
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• 1998

We already know that it is very difficult to obtain an "isolated field" for direct bonding during the surgical exposure of unerupted teeth. The aim of this in-vitro study is to simulate the clinical situation of forced eruption and to evaluate the tensile strengths of preligatured button with several types of contamination which can happen during the surgical exposure of unerupted teeth. Four orthodontic direct bonding systems were used. ($Ortho-One^{TM}$, $Rely-a-Bond^{(R)}$, $Ortho-Two^{TM}$, Phase $II^{(R)}$) Each material was divided into four groups(n=20) : Group 1. (Control, no contamination), Group 2. (Rinse etching agent with saline instead of water), Group 3. (Blood contamination of etched surface for 30 seconds), Group 4. (Blood contamination of primed surface for 30 seconds) 320 bovine anterior permanent teeth were divided into the above mentioned 16 groups. Enamel surface was flattened and ground under water coolant. Pre-ligatured buttons were prepared to the same form. (Cut 0.25 ligature wire 10 cm in length. Twist the ligature wire 30 times clockwise. Mark the wire 15mm and 35mm points from button. Make a loop sticking two points together and twist the loop 6 times counterclockwise.) The bonded specimens were stored at $37^{\circ}C$ saline solution for 3 days. Then the tensile strength of each sample was measured with Instron universal testing machine, crosshead speed of 0.5mm/min. The following results were obtained: 1. As compared to control groups (Group 1) of each material, Rely-a-Bond had a significantly lower mean tensile strengths than other material. (p<0.01) 2. In Group 2. of Ortho-One and Rely-a-Bond, the mean tensile strengths decreased about 7.7% and 11.1%, respectively with statistical significances. (p<0.05) 3. In Group 2. of Ortho-Two and Phase II, the mean tensile strengths did not decrease. 4. In Group 3. of Ortho-One, Rely-a-Bond, Ortho-Two, and Phase II, the mean tensile strengths decreased about 60.8%, 56.1%, 60.2%, and 46.0%, respectively with statistical significances. (p<0.01) 5. In Group 4. of Ortho-One and Rely-a-Bond, the mean tensile strengths did not decrease. 6. In Group 4. of Ortho-Two and Phase II, the mean tensile strengths were decreased about 20.95% and 22.28%, respectively with statistical significances. (p<0.01) There were formations of a hump shaped mass from bonding resin under blood contamination which disturbed direct bonding procedure. According to Reynolds, the proper bond strength for clinical manipulation should be at least 45N or about 4.5Kg.F. According to these results, it can be concluded that Ortho-One could be used during surgical exposure of unerupted teeth. In any case, blood contamination of the etched surface should be avoided, but the blood contamination of primed surface of Ortho-One may not decrease bond strength. Just 'blowing-out' is enough to remove blood from primed surface of Ortho-One. You can verify the clean surface of the primer of Ortho-One after blowing out the blood contamination.

• 대한의용생체공학회:의공학회지
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• 제43권4호
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• pp.290-297
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• 2022

During surgery, Surgical instruments are often left behind due to accidents. Most of these are surgical gauze, so radioactive non-permeable gauze (X-ray gauze) is used for preventing of accidents which gauze is left in the body. This gauze is divided into wire and pad type. If it is confirmed that the gauze remains in the body, gauze must be detected by radiologist's reading by imaging using a mobile X-ray device. But most of operating rooms are not equipped with a mobile X-ray device, but equipped C-Arm equipment, which is of poorer quality than mobile X-ray equipment and furthermore it takes time to read them. In this study, Use C-Arm equipment to acquire gauze image for detection and Build dataset using artificial intelligence and select a detection model to Assist with the relatively low image quality and the reading of radiology specialists. mAP@50 and detection time are used as indicators for performance evaluation. The result is that two-class gauze detection dataset is more accurate and YOLOv5 model mAP@50 is 93.4% and detection time is 11.7 ms.

• 대한족부족관절학회지
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• 제19권4호
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• pp.197-200
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• 2015

The Akin osteotomy is a complimentary procedure in hallux valgus surgery. Surgical techniques may vary depending on the operators or fixation devices. Suture fixation, for which a removal procedure is not necessary, can often be recommended. However, there is a risk of failure due to the thin cortex of the phalanx. We describe a new technique using Ethibond suture fixation in Akin osteotomy, which can lower the risk of phalangeal cortical failure and articular cartilage irritation. First, the Akin osteotomy was performed on the proximal phalanx 5 to 6 mm distal to the first metatarsophalangeal joint. Then bone holes were drilled from dorsum to plantar parallel to osteotomy with the Kirschner wire. The final procedure involved passing the Ethibond sutures connected to a straight needle through the holes and tying it. This fixation method offers an effective and easy technique for performance of Akin osteotomy.

• Journal of Chest Surgery
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• 제51권5호
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• pp.363-366
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• 2018

One of the complications of permanent pacemaker implantation is unintended phrenic nerve stimulation. A 15-year-old boy with a permanent pacemaker presented with chest discomfort due to synchronous chest wall contraction with pacing beats. Even after reprogramming of the pacemaker, diaphragmatic stimulation persisted. Therefore, we performed thoracoscopic phrenic nerve insulation using a Gore-Tex patch to insulate the phrenic nerve from the wire. A minimally invasive approach using a thoracoscope is a feasible option for retractable phrenic nerve stimulation after pacemaker implantation.

• 한국임상수의학회지
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• 제18권2호
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• pp.160-163
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• 2001

A 8 months old female dog with the combination of a fracture of the proximal tibia (Salter-Harris type I) with an avulsion of the tibial tuberosity was repaired with cross intramedullary pin for proximal tibial physeal fracture, and intramedullary pin combined with tension band wire for avulsion fracture of tibial tuberosity, resulted in complete healing. At 45 days after operation, on the radiological views, there was premature closure of growth plate of proximal tibia and tibial tuberosity, but at 7 months no developing growing deformities.

• 한국임상수의학회지
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• 제35권5호
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• pp.215-217
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• 2018

A one-year-old, intact male, 24 kg, mixed breed dog was referred to the Animal Medical Center, Iksan, Chonbuk, Korea for treatment of a gunshot wound to the head. Physical examinations revealed bilateral nasal bleeding and open-mouth breathing. Radiographic examination showed fracture of the right maxilla bone and multiple fractures of the nasal bone. A $1cm{\times}1cm{\times}1.8cm$ region of mineral opacity material was observed in the right-cranial ventralnasal cavity and a $6mm{\times}6mm{\times}9mm$ region of mineral opacity material was present in the left-cranial dorsal-nasal cavity. The surgical procedure involved removal of bone fragments and the lodged bullet as well as the installation of three intraosseous wires. At two weeks after surgery, the patient exhibited no complications and had a good prognosis.

• 대한치과교정학회지
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• 제16권1호
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• pp.35-49
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• 1986

전치개교에 관한 원인과 여러가지 치료법의 장단점을 논의했고 전치개교본태를 객관적으로 이해하는데 강조했다. 진단의 주관적인 해석은 부정교합을 잘못 기술해서 위험한 결과를 흔히 유도하게 된다. 해부학, 생리학, 조직학과 교정기계요법의 역학에 관한 길은 지식을 가진다면 대부분 전치개교치료는 외과적중재 없이 높은 성공율과 안정을 기할 수 있다. 이러한 점에서 지난 20여년동안 임상적으로 정립된 Kim의 MEAW 시술을 설명했으며 전치개교치료증례들이 이 MEAW요법을 입증하는데 제시되었다.

• 대한족부족관절학회지
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• 제21권4호
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• pp.165-169
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• 2017

Secondary soft tissue injuries can occur from the pressure of the displaced fragment of posterior calcaneal tuberosity in calcaneal tongue-type fractures and calcaneal tuberosity avulsion fractures. The soft tissue injury can be prevented by immediate reduction of the displaced fragments. Various techniques can be used to fix the fracture fragments, but the stability of fixation and minimal invasiveness to soft tissue should be considered. This paper reports the successful outcomes of patients with soft tissue compromises in calcaneal tongue-type fractures and calcaneal tuberosity avulsion fractures. The fixation technique of a large cannulated screw and simple cerclage wiring is believed to be a useful surgical option for the treatment of secondary soft tissue compromised calcaneal fractures.