• Clinics in Shoulder and Elbow
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• 제10권2호
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• pp.160-166
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• 2007

목적: 다발성 회전근 개 파열에서 일차 복원술의 결과와 결과에 영향을 주는 인자를 분석하고자 하였다. 대상 및 방법: 1997년에서 2003년 사이에 두 개 이상 건이 이환된 회전근 개 파열에 대하여 일차 복원술을 시행한 후 2년 이상 추시된 19예(평균 연령 64.8세)를 대상으로 UCLA score의 변화를 조사하고, 외상, 능동적 운동, 견봉-상완골간 간격, 파열의 크기, 면적 등과 UCLA score사이의 상관 관계를 Pearson 선형 상관계수(PLCC)를 이용하여 검증하였다. 결과: UCLA score는 평균 9.4에서 26.1로 전 예에서 뚜렷이 증가하였으나 Ellman 기준상 53%에서 우수, 47%는 불량의 결과를 보였다. 외상, 능동적 거상, 견봉-상완골 간격 및 파열의 크기는 UCLA score와 상관관계가 없었으나 파열 면적은 UCLA score와 역 상관관계가 있었으며(PLCC=-0.696) MRI상 극하근의 Goutallier등급 III단계 이상 변성이 있는 경우는 불량한 결과를 보였다. 결론: 다발성 회전근 개 파열에서 일차 복원술의 결과는 53%에서 만족스러웠다. 큰 파열 면적, 극하근의 심한 변성은 불량 예후인자로 사료된다.

• Journal of Trauma and Injury
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• 제30권2호
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• pp.25-32
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• 2017

Purpose: The use of computed tomography (CT) to evaluate acute abdominal complaints has increased over the past two decades. We investigated how the clinical practice of patients with intestinal perforation has changed with the increasing use of abdominal CT in the emergency department (ED). Methods: We compared ED arrival to CT time, ED arrival to surgical consultation time, and ED arrival to operation time according to the method of diagnosis from 2003-2004 and 2013-2014. Results: In patients with gastrointestinal perforation, time from ED arrival to CT was shorter ($111.4{\pm}66.2min$ vs. $199.0{\pm}97.5min$, p=0.001) but time to surgical consultation was longer ($135.1{\pm}78.8$ vs. $77.9{\pm}123.7$, p=0.006) in 2013-2014 than in 2003-2004. There was no statistically significant difference in time to operation for perforation confirmed either by plain film or CT between the two time periods. There was no statistically significant difference in length of hospital or ICU stay or mortality between the two groups. Conclusion: With the increasing use of abdominal CT in ED, ED arrival to CT time has decreased and ED arrival to surgical consultation time has increased in gastrointestinal perforation. These changes of clinical performance do not delay ED arrival to operation time or adversely influence patient outcome.

• 대한치과교정학회지
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• 제54권1호
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• pp.59-68
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• 2024

Objective: To investigate the long-term effects of maxillary skeletal expander (MSE) treatment on functional breathing. Methods: Objective measures of breathing, the peak nasal inspiratory flow (PNIF), and peak oral inspiratory flow (POIF), and subjective measures of breathing, the visual analog scale (VAS) and nasal obstruction symptom evaluation (NOSE) survey, were used to investigate the long-term effects of MSE in functional breathing. Seventeen patients, mean age 19.4 ± 3.9 years treated at the UCLA Orthodontics Clinic were assessed on their functional breathing at 3 timepoints: pre-expansion (T0), post-expansion (T1), and post-orthodontic treatment (T2). Results: Immediately after expansion (T1), all the objective functional breathing values were significantly increased in comparison to T0 (P < 0.05). The VAS total, VAS right and VAS left were significantly lower at T1 in comparison to T0 (P < 0.05). At 26.8 ± 3.9 months after MSE expansion (T2), PNIF total, PNIF right, PNIF left, and POIF were significantly higher when compared to T0 (P < 0.05). Also, VAS total, VAS right and VAS left were significantly lower at T2 when compared to T0 (P < 0.05). Additionally, there was a positive correlation between PNIF and the magnitude of expansion at anterior nasal spine and zygomaticomaxillary point (ZMA). There was a positive correlation between total VAS and the magnitude of expansion at the ZMA. There were no significant changes for the NOSE subjective breathing measurement at all time comparisons. Conclusions: Overall, MSE treatment produces an increased objective and subjective airway improvement that continues to remain stable in the long-term post expansion.

• 천문학회보
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• 제33권1호
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• pp.28.2-28.2
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• 2008

• 한국우주과학회:학술대회논문집(한국우주과학회보)
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• 한국우주과학회 1999년도 한국우주과학회보 제8권2호
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• pp.26-26
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• 1999

No Abstract, See Full Text

• 구강회복응용과학지
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• 제26권4호
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• pp.389-403
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• 2010

이전부터 사용된 티타늄, 금합금 지대주 및 최근 사용이 급증한 지르코니아 지대주와 임플란트의 계면에 대한 비교 연구와 동적하중이 계면에 미치는 영향에 관한 연구가 많지 않은 실정이다. 본 연구에서 지대주 종류와 동적 하중에 따른 미세간극의 차이를 주사전자현미경 분석을 통하여 비교평가 하였다. USII ${\phi}3.75{\times}11.5mm$ (Osstem Co., Seoul, Korea) 티타늄 임플란트에 티타늄 지대주, 지르코니아 지대주, 주조 금합금 (UCLA plastic) 지대주를 각 군당 7개씩, 30Ncm의 조임회전력으로 연결하였다. 25-250N의 sine형 동적하중을 장축 방향에서 $30^{\circ}$ 경사로 $10^5$회 시행하였다. 하중 전후에 계면의 미세간극을 순측, 구개측, 근심측, 원심측 부위에서 측정하였고, 그 결과 동적 하중으로 인한 통계적 유의성은 없었다. 지대주 종류에 따른 미세간극을 비교한 결과, 동적하중 시행 전후 모두 UCLA 군과 티타늄 군, UCLA 군과 지르코니아 군 사이에 통계적으로 유의한 차이를 보였다(p<0.05). 티타늄 군과 지르코니아 군 사이에는 유의한 차이를 보이지 않았다. UCLA 지대주는 정밀 연삭된 티타늄, 지르코니아 지대주 보다 더 큰 미세간극을 보였고 $10^5$회 동적하중은 미세간극에 영향을 미치지 않았다.

• Clinics in Shoulder and Elbow
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• 제13권2호
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• pp.181-187
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• 2010

목적: 회전근 개 전층 중파열, 대파열 환자에 대하여 관절경적 교량형 봉합 술식을 시행한 후 임상 결과를 분석 보고하고자 하였다. 대상 및 방법: 2007년 11월부터 2008년 10월까지 회전근 개 전층 중파열, 대파열을 관절경적 교량형 봉합 술식으로 치료받은 90예를 대상으로 하였고, 평균 추시 기간은 15개월 (12~23개월)이었다. 파열의 크기는 중파열이 43예, 대파열이 47예였다. 술 전 및 최종 추시 시 KSS, ASES, UCLA, Visual Analogue Scale (VAS)를 이용한 기능평가를 시행하였다. 결과: 휴식 및 운동 시 평균 VAS 점수는 각각 수술 전 2.56, 6.94에서 최종 추시 시 0.96, 1.70으로 현저한 감소를 보였다. UCLA 점수는 수술 전 평균 17.08점에서 최종 추시 시 31.17점으로 향상되었으며, 최우수가 31예 (34%), 양호가 49예 (54%), 불량이 10예 (12%)였다. 최종 추시 시 60세 이하인 경우 31.47점, 61세 이상인 경우 30.69점이었으며 (p=0.344), 중파열인 경우 31.23점, 대파열인 경우 31.11점이었고 (p=0.924), 비외상군이 31.10점, 외상군이 31.23점이었다 (p=0.929). 결론: 회전근 개 전층 중파열, 대파열 환자에서 관절경적 교량형 봉합 술식을 시행하여 동통의 감소 및 견관절 기능 향상의 우수한 결과를 얻을 수 있어 믿을만한 수술적 방법 중 하나라고 생각한다. 수술 당시 연령, 외상력 유무는 치료 결과에 큰 영향을 주지 않았다.

• 한국식생활문화학회지
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• 제23권6호
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• pp.705-712
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• 2008

In this study, Jeonju bibimbap, Bulgogi, Japchae, Whangpomuk, Kimchijeyukbokkeum, and Sangseonjeon were selected as examples of take-out style Korean foods, and sensory evaluations on a 9-point hedonic scale were conducted with dining staff at UCLA. 54.5% of the respondents in this study were male and 62.7% were Hispanic/Latino, with the respondents fairly evenly split across age groups in a range of 25-54 years. In the sensory evaluation, the most acceptable items were judged as follows: Bulgogi (8.1)>Japchae (7.5)>Sangseonjeon (7.4)>Jeonjubibimbap=kimchijeyukbokkeum (7.3)>Whangpomuk (6.9). Among the 6 Korean foods (Jeonjubibimbap, Bulgogi, Japchae, Whangpomuk, Kimchijeyukbokkeum and Sangseonjeon), Bulgogi, and Saengseonjeon were the most acceptable items for the female and male respondents, respectively. All of the items were popular with the majority of the responding age groups, with the exception of the 18-24-year groups; in particular, Kimchijeyukbokkeum and Bulgogi scored relatively high on acceptability (7.0) for all respondents. Jeonjubibimbap, Japchae, Whangpomuk, and Saengseonjeon were also found to be acceptable to all respondents except for the African American respondents. We suggest that the Korean foods listed above are applicable items for quick service restaurants in the U.S. market.

• 대한치과보철학회지
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• 제41권4호
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• pp.451-465
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• 2003

Statement of problem : Recently various implant components such as premachined gold cylinder, plastic cylinder gold UCLA abutment and plastic abutment were developed and used clinically without clinical investigation. Purpose : The purpose of this study was to evaluate the effects of fabrication of gold cylinder on the fitness and preload of the standard abutment and also the effects of fabrication of UCLA gold abutment on the fitness and stress transfer around the implant fixture. Material and method : Three kinds of gold cylinders such as, as-received gold cylinder (Nobel Biocare, Sweden), gold cylinder after casting, and plastic cylinder after casting with type IV gold alloy were tested over the top of the standard abutment. At the same time, three types of abutments such as, gold UCLA abutment before and after casting, and plastic abutment after casting were tested. The cylinder and abutment was secured over the fixture with conventional pre-load values using an electronic torque controller (Nobel Biocare, Sweden). The fitness of the abutment on the fixture and gold cylinder over the standard abutment were measured using the microhardness tester (MXT 70, Matsuzawa, Japan). Preload and the strain values were recorded using the strain balance unit (SB-10, Measurement group, Raleigh, USA) and strain indicator (P-3500, Measurement group, Raleigh, USA) systems. Results and conclusion : 1. Significant differences were found in the fit between the gold cylinder and plastic cylinder. 2 There were significant differences between the preload of the gold cylinder and that of the plastic cylinder. 3. Significant differences were found in the fit between the gold UCLA abutment and plastic UCLA abutment. 4. There were no significant differences in the stress generated on the supporting structure of the fixture among different cylinder and abutment groups.

• The Journal of Advanced Prosthodontics
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• 제6권1호
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• pp.46-52
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• 2014

PURPOSE. The aim of this study was to evaluate the interface accuracy of computer-assisted designed and manufactured (CAD/CAM) titanium abutments and implant fixture compared to gold-cast UCLA abutments. MATERIALS AND METHODS. An external connection implant system (Mark III, n=10) and an internal connection implant system (Replace Select, n=10) were used, 5 of each group were connected to milled titanium abutment and the rest were connected to the gold-cast UCLA abutments. The implant fixture and abutment were tightened to torque of 35 Ncm using a digital torque gauge, and initial detorque values were measured 10 minutes after tightening. To mimic the mastication, a cyclic loading was applied at 14 Hz for one million cycles, with the stress amplitude range being within 0 N to 100 N. After the cyclic loading, detorque values were measured again. The fixture-abutment gaps were measured under a microscope and recorded with an accuracy of ${\pm}0.1{\mu}m$ at 50 points. RESULTS. Initial detorque values of milled abutment were significantly higher than those of cast abutment (P<.05). Detorque values after one million dynamic cyclic loadings were not significantly different (P>.05). After cyclic loading, detorque values of cast abutment increased, but those of milled abutment decreased (P<.05). There was no significant difference of gap dimension between the milled abutment group and the cast abutment group after cyclic loading. CONCLUSION. In conclusion, CAD/CAM milled titanium abutment can be fabricated with sufficient accuracy to permit screw joint stability between abutment and fixture comparable to that of the traditional gold cast UCLA abutment.