1.Measurement of Posterior Laxity of Normal Knee in Korean Adults by means of KT-2000 Knee Ligament Arthrometer
Shin Kun KIM ; Koing Woo KWUN ; Sang Wook LEE ; Chang Hyouk CHOI ; Yong Joo KIM
The Journal of the Korean Orthopaedic Association 1996;31(2):357-363
We measured normal range and mean value of the posterior laxity of normal knee which might be reference for objective and accurate diagnosis, decision of operative indication and position of knee during fixation of ligament, and role of quadriceps building in posterior cruciate ligament injury patients. These results were obtained by measurement and analysis of posterior laxity of normal knee by means of KT-2000 Knee Ligament Arthrometer. We measured 184 Korean adults (100 males, 84 females), and their average age, height, weight, and thigh circumference were 29.8 years, 165.8cm, 59.8kg, 41.2cm, respectively. At 25 degrees of knee flexion, mean posterior displacement of normal knee was 21.2mm with 15lb posterior tibial loading, 2.41mm with 20lb posterior tibial loading. And when quadriceps were tense, laxity was 0.79mm and 0.95mm at the same degree of knee flexion. At 75 degrees of knee flexion, the results were 0.57mm, 0.58mm, 0.26mm, and 0.28mm respectively. Right to left difference of posterior displacement with 20lb posterior tibial loading was 0.07mm at 25 degrees of knee flexion and 0.06mm at 75 degrees of knee flexion. We thought that above 75 degrees of knee flexion is suitable for knee position at the time of graft fixation because 75 degrees of knee flexion markedly decreased(75%) posterior displacement compare to 25 degrees of knee flexion. When quadriceps were tense, remarkable decrease of posterior laxity of normal knee was checked(58%), so we noticed quadriceps building is important to management of posterior cruciate ligament injury patients.
Adult
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Diagnosis
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Humans
;
Knee
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Ligaments
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Male
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Posterior Cruciate Ligament
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Reference Values
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Thigh
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Transcutaneous Electric Nerve Stimulation
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Transplants
2.Coronary vasospasm caused by local infiltration of epinephrine after spinal anesthesia.
Mi Geum LEE ; Hee Yeon PARK ; Chang Ki LEE ; Joon Hyouk CHOI ; Yun Suk CHOI
Korean Journal of Anesthesiology 2014;67(Suppl):S46-S48
No abstract available.
Anesthesia, Spinal*
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Coronary Vasospasm*
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Epinephrine*
3.Coronary vasospasm caused by local infiltration of epinephrine after spinal anesthesia.
Mi Geum LEE ; Hee Yeon PARK ; Chang Ki LEE ; Joon Hyouk CHOI ; Yun Suk CHOI
Korean Journal of Anesthesiology 2014;67(Suppl):S46-S48
No abstract available.
Anesthesia, Spinal*
;
Coronary Vasospasm*
;
Epinephrine*
4.Comparison of Factors Associated With Direct Versus Transferred-in Admission to Government-Designated Regional Centers Between Acute Ischemic Stroke and Myocardial Infarction in Korea
Dae-Hyun KIM ; Seok-Joo MOON ; Juneyoung LEE ; Jae-Kwan CHA ; Moo Hyun KIM ; Jong-Sung PARK ; Byeolnim BAN ; Jihoon KANG ; Beom Joon KIM ; Won-Seok KIM ; Chang-Hwan YOON ; Heeyoung LEE ; Seongheon KIM ; Eun Kyoung KANG ; Ae-Young HER ; Cindy W YOON ; Joung-Ho RHA ; Seong-Ill WOO ; Won Kyung LEE ; Han-Young JUNG ; Jang Hoon LEE ; Hun Sik PARK ; Yang-Ha HWANG ; Keonyeop KIM ; Rock Bum KIM ; Nack-Cheon CHOI ; Jinyong HWANG ; Hyun-Woong PARK ; Ki Soo PARK ; SangHak YI ; Jae Young CHO ; Nam-Ho KIM ; Kang-Ho CHOI ; Juhan KIM ; Jae-Young HAN ; Jay Chol CHOI ; Song-Yi KIM ; Joon-Hyouk CHOI ; Jei KIM ; Min Kyun SOHN ; Si Wan CHOI ; Dong-Ick SHIN ; Sang Yeub LEE ; Jang-Whan BAE ; Kun Sei LEE ; Hee-Joon BAE
Journal of Korean Medical Science 2022;37(42):e305-
Background:
There has been no comparison of the determinants of admission route between acute ischemic stroke (AIS) and acute myocardial infarction (AMI). We examined whether factors associated with direct versus transferred-in admission to regional cardiocerebrovascular centers (RCVCs) differed between AIS and AMI.
Methods:
Using a nationwide RCVC registry, we identified consecutive patients presenting with AMI and AIS between July 2016 and December 2018. We explored factors associated with direct admission to RCVCs in patients with AIS and AMI and examined whether those associations differed between AIS and AMI, including interaction terms between each factor and disease type in multivariable models. To explore the influence of emergency medical service (EMS) paramedics on hospital selection, stratified analyses according to use of EMS were also performed.
Results:
Among the 17,897 and 8,927 AIS and AMI patients, 66.6% and 48.2% were directly admitted to RCVCs, respectively. Multivariable analysis showed that previous coronary heart disease, prehospital awareness, higher education level, and EMS use increased the odds of direct admission to RCVCs, but the odds ratio (OR) was different between AIS and AMI (for the first 3 factors, AMI > AIS; for EMS use, AMI < AIS). EMS use was the single most important factor for both AIS and AMI (OR, 4.72 vs. 3.90). Hypertension and hyperlipidemia increased, while living alone decreased the odds of direct admission only in AMI;additionally, age (65–74 years), previous stroke, and presentation during non-working hours increased the odds only in AIS. EMS use weakened the associations between direct admission and most factors in both AIS and AMI.
Conclusions
Various patient factors were differentially associated with direct admission to RCVCs between AIS and AMI. Public education for symptom awareness and use of EMS is essential in optimizing the transportation and hospitalization of patients with AMI and AIS.