• Journal of Korean Neurosurgical Society
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• 제48권3호
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• pp.219-224
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• 2010

Objective : A minimally invasive transforaminal lumbar interbody fusion (MIS TLlF) has recently been introduced. However, MIS TLlF is a technically challenging procedure. The authors performed retrospective analysis about MIS TLlF using a single interbody cage. Methods : Twenty-eight consecutive patients were treated by MIS TLlF. Of these 28 patients, 20 patients were included in this retrospective study. Perioperative, clinical, and radiologic outcomes were assessed. Clinical outcomes were assessed using Oswestry Disability Index (ODI) and Visual Analogue Scores (VAS). Fusion rates and cross-sections of operated spinal canals were assessed by CT. Results : Twelve patients underwent MIS TLlF at one segment and 8 patients at two segments (L3/4: 4, L4/5: 17, L5/S1: 7). Operation time for a single segment was 131.7 min and for two segment was 201.4 min, and corresponding blood losses were 208.3 mL and 481.2 mL, respectively. ODI and VAS scores were significantly improved at 6 months postop (ODI from 30.32 to 15.54, VAS from 7.80 to 2.20, p = 0.001) Twenty-two segments (78.6%) achieved grade I fusion, 4 segments (14.3%) achieved grade II, 2 segments (7.1%) achieved grade III and 0 segments achieved grade IV at 12 months. Postoperatively at 12 months, spinal canal cross sectional areas at disc spaces significantly increased from 157.5 to $294.3\;mm^2$ (p = 0.012). Conclusion : MIS TLlF achieved good clinical outcomes and high fusion rates. Our findings show that MIS TLlF performed with a single Interbody cage and a tubular retractor system can be used as a standard MIS TLlF technique.

• Journal of Chest Surgery
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• 제51권1호
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• pp.8-14
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• 2018

Background: Minimally invasive direct coronary artery bypass grafting (MIDCAB) has the advantage of allowing arterial grafting on the left anterior descending artery without a sternotomy incision. We present our single-center clinical experience of 66 consecutive patients. Methods: All patients underwent MIDCAB through a left anterior small thoracotomy between August 2007 and July 2015. Preoperative, intraoperative, postoperative and follow-up data - including major adverse cardiovascular and cerebrovascular events (MACCE), graft patency, and the need for re-intervention - were collected. Results: The mean age of the patients was $69.4{\pm}11.1years$ and 73% were male. There was no conversion to an on-pump procedure or a sternotomy incision. The 30-day mortality rate was 1.5%. There were no cases of stroke, although 2 patients had to be re-explored for bleeding, and 81.8% were extubated in the operating room or on the day of surgery. The median stay in the intensive care u nit and in the hospital were 1.5 and 9.6 days, respectively. The median follow-up period was 11 months, with a 5-year overall survival rate of $85.3%{\pm}0.09%$ and a 5-year MACCE-free survival rate of $72.8%{\pm}0.1%$. Of the 66 patients, 32 patients with 36 grafts underwent a postoperative graft patency study with computed tomography angiography or coronary angiography, and 88.9% of the grafts were patent at $9.7{\pm}10.8months$ postoperatively. Conclusion: MIDCAB is a safe procedure with low postoperative morbidity and mortality and favorable mid-term MACCE-free survival.

• 한국식품저장유통학회지
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• 제10권1호
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• pp.6-10
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• 2003

각종 전처리 및 진공포장이 최소가공한 단호박 제품의 품질 특성에 미치는 영향을 조사하기 위하여 ascorbic acid, citric acid, NaCl, MgC1$_2$및 이들의 혼합조성물(1:1:1:1)을 슬라이스와 채썰기로 최소가공한 단호박에 처리하여 진공 포장한 후 저온저장 하였다. 최소가공 처리에 따른 저장 중 중량감소율은 모든 처리구에서 증가하는 경향을 나타내었으며 슬라이스 처리시 보다 채썰기한 경우 더욱 크게 나타났다. 한편 ascorbic acid 처리구는 전 시료 중에서 가장 큰 중량감소율을 나타내었으며 저장 10일경에 가장 현저한 중량감소율을 보였다. 갈변저해 효과는 슬라이스의 경우 ascorbic acid와 NaCl 및 MgC1$_2$로 처리한 구가, 채썰기의 경우 혼합조성물과 ascorbic acid가 가장 효과적이었다. 저장 중 과육의 경도는 증감을 반복하고 있으나 결론적으로 저장 후기에는 저장 초기에 비해 경도가 감소하였으며 절단 형태에 따라 다른 양상을 나타내어, 슬라이스의 경우 전처리를 행한 경우 오히려 경도가 증가하는 것을 볼 수 있으나 채썰기한 경우 전처리를 행할 경우 경도가 감소가 현저하였다. 최소가공 단호박의 호흡 양상을 살펴보면 이산화탄소의 발생량은 citric acid를 처리한 경우 가장 많았으며 이는 산소 소모량도 가장 높게 나타났다. 또한 ascorbic acid의 경우 저장 초기에는 호흡률이 높았으나 저장 후기로 갈수록 오히려 완화되는 경향을 나타내었다.

• 한국식품저장유통학회지
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• 제10권1호
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• pp.11-15
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• 2003

고품질의 최소가공 버섯을 제조하기 위해 여러 가지 천연 갈변저해제를 양송이버섯에 적용하여 최적의 천연 갈변저해제를 선발하고 선발된 천연 갈변저해제를 처리한 최소가공 버섯의 저장 중 품질특성 변화를 조사하였다. 천연 갈변저해제 중 천문동, 계피 및 키위 추출물이 우수하였다. 이들 선발된 갈변저해제를 처리한 최소가공 버섯의 저장 중 물리적 품질특성을 조사한 결과 갈변도에서는 1% cysteine과 천문동 추출물이 높은 저해효과를 나타내었다. 천연갈변저해 제를 처리한 버섯의 PPO 활성이 저장 초기부터 높게 나타난 것은 갈변저해제가 양송이버섯의 조직 내부로 흡수되지 못하기 때문으로 보여지며, 갈변저해제에 따른 총 페놀 함량의 유의적인 차이는 나타나지 않았으나, 저장기간이 증가함에 따라 양송이버섯의 총 페놀 함량이 증가하였다. 이러한 결과는 현재까지 갈변저해에 주로 이용되던 화학물질을 천연물 유래 갈변저해제로 대체 할 수 있음을 시사하는 것이다.

• 대한족부족관절학회지
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• 제24권1호
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• pp.19-24
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• 2020

Purpose: Anterolateral minimally invasive plate osteosynthesis (MIPO) was performed to treat patients with distal tibial fractures associated with open fractures or extensive soft tissue injuries, which is limited medial MIPO. The treatment results of the anterolateral MIPO technique were evaluated and analyzed. Materials and Methods: Seventeen patients with distal tibial fractures associated with an open fracture or large bullae formation on the distal tibia medial side were treated with anterolateral MIPO using anterolateral locking plates. Within 24 hours of visiting the emergency room, external fixation was applied, and the medial side wound was managed. After damage control, the anterolateral locking plate was applied using an anterolateral MIPO technique. The union time, nonunion, or malunion were evaluated with regular postoperative radiographs. The ankle range of motion, operative time, blood loss, Iowa score, and wound complications were investigated. Results: Radiological evidence of bony union was obtained in all cases. The mean time to union was 16.7 weeks (12~25 weeks). The mean operation time was 44.0 minutes. Regarding the ankle range of motion, the mean dorsiflexion was 15°, and the mean plantarflexion was 35°. Satisfactory results were obtained in 15 out of 17 cases; five results were classified as excellent, four were good, and six were fair. The mean blood loss was 125.2 mL. Two complications were recorded. Conclusion: In distal tibial fractures with severe medial soft tissue damage caused by high-energy trauma, the staged anterolateral MIPO technique using anterolateral locking plates is a useful alternative treatment to achieving optimal wound care, rapid union with biological fixation, and intra-articular reduction.

• 한국임상수의학회지
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• 제29권4호
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• pp.339-343
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• 2012

교통사고를 원인으로 3마리의 개가 경골 골간 골절로 내원하였다. 신체검사와 정형외과 검사상 이들 골절은 경골주위에 연조직 손상을 동반한 폐쇄성 골절을 보여 주었다. 방사선검사상 단순 경사골절 (증례1), 복잡 나선형골절 (증례 2), 단순 나선형골절 (증례 3)로 진단되었다. 이들 골절은 수의 절단성 금속판이나 잠김 금속판을 이용하여 최소 침습적 금속판 고정술을 적용하였다. 수술은 성공적으로 이루어지고 7주 (증례 1), 10주 (증례 2) 그리고 8주 (증례3) 후 부작용 없이 골절 치유를 확인할 수 있었다. 수술 후 모든 환자들은 빠른 골치유와 체중 지지를 관찰할 수 있었다. 최소 침습적 금속판 고정술은 수의정형외과영역에서 경골 골간 골절의 유용한 수술법으로 생각된다.

• Asian Pacific Journal of Cancer Prevention
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• 제14권8호
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• pp.4913-4918
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• 2013

Objective: To assess the level of an inpatient population's awareness about hepatitis and primary liver cancer (PLC), the most common type of which is hepatocellular carcinoma (HCC), and then to initiate education of this group. Methods: A survey was conducted with 1300 participants within the inpatient unit in representative tertiary hospitals in the Chaoshan area of China. Structured questionnaires contained demographic data and statements about different aspects of liver cancer and hepatitis. The questionnaires were completed by trained medical practitioners after they had conducted the interviews. Results: One way ANOVA showed that the sample population lacked adequate knowledge about HCC and hepatitis. Stepwise multiple regression analysis demonstrated that the participant's level of education had the greatest impact on their total knowledge score when other variables remained constant. Conclusions: The study demonstrated: a general lack of awareness amongst the participants about the preventative strategies, and the management options available for people with primary liver cancer and hepatitis; education level was an important factor affecting knowledge levels. The demonstrated deficiencies in people's knowledge about hepatitis and HCC, and their lack of subsequent protective behaviours are likely to play an important role in HCC and hepatitis transmission or prevention.

• 대한기계학회논문집B
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• 제37권7호
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• pp.703-708
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• 2013

고관절 전치환술은 대퇴골두와 비구 부분이 손상되어 제 기능을 하지 못하였을 때, 인공 고관절로 대체하는 수술로서 인체에는 많은 양의 절개를 필요로 하며 장기간의 회복시간과 재활시간을 필요로 한다. 최소침습술은 환자에게 흉터와 근육절개를 최소화하고, 회복시간을 단축하여 미관상 흉터가 적어 가장 선호되는 수술 방법이다. 이 논문에서는 최소침습술이 가능한 메커니컬 스템(Mechanical stem)을 기어의 원리를 이용하여 개발하였다. 재치환술을 할 경우에는 스템 전체를 교체할 필요 없이 일부 부품만을 교체하여 수술 시간을 단축할 수 있도록 설계하였으며, 아크릴 소재로 모형을 제작하여 작동에 문제가 없는 것을 확인하였다. 3D Bio-CAD 모델링 기법을 통하여 메커니컬 스템의 기하학적 모델링을 하였다. 실험 대상자의 고관절 부위는 컴퓨터 단층촬영 영상데이터를 기반으로 3차원 재구축을 하였고, 가상 시술 환경 조건에서 몸무게보다 더 과중한 하중을 적용하여 메커니컬 스템의 안전성을 유한요소해석으로 확인하였다.

• Archives of Plastic Surgery
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• 제42권3호
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• pp.327-333
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• 2015

Background An anatomical analysis of the transverse carpal ligament (TCL) and the surrounding structures might help in identifying effective measures to minimize complications. Here, we present a surgical technique based on an anatomical study that was successfully applied in clinical settings. Methods Using 13 hands from 8 formalin-fixed cadavers, we measured the TCL length and thickness, correlation between the distal wrist crease and the proximal end of the TCL, and distance between the distal end of the TCL and the palmar arch; the TCL cross sections and the thickest parts were also examined. Clinically, fasciotomy was performed on the relevant parts of 15 hands from 13 patients by making a minimally invasive incision on the distal wrist crease. Postoperatively, a two-point discrimination check was conducted in which the sensations of the first, second, and third fingertips and the palmar cutaneous branch injuries were monitored (average duration, 7 months). Results In the 13 cadaveric hands, the distal wrist crease and the proximal end of the TCL were placed in the same location. The average length of the TCL and the distance from the distal TCL to the superficial palmar arch were $35.30{\pm}2.59mm$ and $9.50{\pm}2.13mm$, respectively. The thickest part of the TCL was a region 25 mm distal to the distal wrist crease (average thickness, $4.00{\pm}0.57mm$). The 13 surgeries performed in the clinical settings yielded satisfactory results. Conclusions This peri-TCL anatomical study confirmed the safety of fasciotomy with a minimally invasive incision of the distal wrist crease. The clinical application of the technique indicated that the minimally invasive incision of the distal wrist crease was efficacious in the treatment of the carpal tunnel syndrome.

• 한국식품과학회지
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• 제35권6호
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• pp.1110-1116
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• 2003

신선 편의가공 양파제품의 적정 포장방법을 탐색하고자 polyolefin계 유연 필름(LDPE, PP)을 이용한 수동 MAP, 20% $O_2/10%\;CO_2/70%\;N_2$ 혼합기체 또는 에틸렌 흡수제를 첨가한 능동 MAP, LDPE 필름으로 감압 포장한 MVP 등의 적용 가능성을 조사하였다. 박피 양파의 포장방법을 달리하여 $10^{\circ}C$에서 28일간 저장하면서 이화학적, 미생물, 관능적 품질변화를 측정하여 개별 품질인자에 대한 포장처리 효과를 검토하였다. 전체적으로 포장방법에 따른 저장중 박피 양파의 표면색, 중량 감소, 미생물 증식은 차이를 분명하게 구분하기 어려웠으나, 외관품질과 부패율 측면에서는 일정한 차이를 식별할 수 있었다. 결과적으로 기체투과성 LDPE 필름에 일정수준의 진공을 적용하여 밀봉 포장한 MVP가 다른 포장구에 비해 상대적으로 박피 양파의 저장품질을 우수하게 유지하는 것으로 확인되었다.