1.A study on fracture strength and color by the design of metal coping in ceramo metal crown.
Myung Ho LEE ; Young Chan JEON
The Journal of Korean Academy of Prosthodontics 1992;30(1):103-124
No abstract available.
Crowns*
2.Clinical evaluation of reoperation for mitral valvular disease.
Myung In KIM ; Eung Joong KIM ; Young LEE
The Korean Journal of Thoracic and Cardiovascular Surgery 1992;25(1):49-56
No abstract available.
Reoperation*
3.The Treatment of Fracture of Tibial Shaft with Rush Nailing and Early Weight Bearing
Myung Sang MOON ; Jae Young LEE
The Journal of the Korean Orthopaedic Association 1983;18(3):453-460
Twenty nine patients who had fracture of tibial shaft were treated with closed Rush nailing and early weight bearing. 1. The average age was 37.8 years (range from 20 to 65), and 21 were men and 8 women. Eighteen cases were open fractures and 11 closed. 2. The time for clinical union was averaging 15.4 weeks. In some cases callus appeared as early as 3 weeks after nailing and in most cases appeared at 8 weeks. 3. Mild angular and rotational deformity of the fractured shaft were developed as complication but did not present any clinical problems. No deep wound infection and pulmonary embolism were encountered. 4. The nails allowed a certain dynamic controlled motion at the fracture site which was probably beneficial to early callus formation. 5. This type of closed nailing method required no medullary reaming, further periosteal stripping and muscle detachment. The allowance of early knee and ankle movements and early weight bearing after surgery could be listed as the advantage.
Ankle
;
Bony Callus
;
Congenital Abnormalities
;
Female
;
Fractures, Open
;
Humans
;
Knee
;
Male
;
Methods
;
Pulmonary Embolism
;
Tibia
;
Weight-Bearing
;
Wound Infection
4.Mniscal replacement using a autogenous rib cartilage after meniscectomy in rabbits.
In Young OK ; Myung sang MOON ; Woo Young LEE
The Journal of the Korean Orthopaedic Association 1993;28(1):473-479
No abstract available.
Cartilage*
;
Rabbits*
;
Ribs*
5.A Study on Clinical Effects and Serum Concentration of Digoxin.
Myung Shick KIM ; Sung Ho LEE ; Young Woo LEE
Korean Circulation Journal 1981;11(1):35-53
From mechanocardiography and echocardiography, the systolic time intervals and the ejection phase indices were measured with determination of serum digoxin concentration(SDC) to elucidate the value of oral maintenance digoxin therapy on patients with heart failure in sinus rhythm. The drug interactions of digoxin with quinidine in heart failure, with verapamil in atrial fibrillation, and with aluminium hydroxide gel in healthy volunteers were observed with concomitant changes of SDCs. The results obtained are as follows. 1. After 10 days of treatment with digoxin 0.25 mg/day in 21 patients with heart failure there was a significant decrease in electromechanical systole(QS2), pre-ejection period(PEP) and PEP/left ventricular ejection time(LVET) ratio. There was also and equivocal decrease in LVET and an equivocal increase in mean velociy of circumferential fiber shortening(Vcf). However there was no significant change in ejection fraction(EF) and heart rate. The steadystate SDC was 1.20+/-0.12(S.E.M.)ng/ml. 2. Excellent correlation of the systolic time interval sand ejection phase indices measured from mechanocardiography and those determined from echocardiography was demonstrated. 3. SDCs were measured before and following quinidine therapy in 20 patients receiving maintenance digoxin for heart failure and who require quinidine for suppression of ventricular premature beats. Steady-state SDC following quinidine(Y) could be estimated form steady-state SDC before quinidine(X) as expressed by regression equation, Y=-0.394+2.309 X with correlation coeffcient, r=0.927(p<0.01). 4. In 12 patients with atrial fibrillation receving maintenance digoxin 0.25 mg/day, SDC before and following coadministration fo first 160 mg/day and later 240 mg/day of verapamil for 7days on each occasion was 0.85+/-0.07(S.E.M.) ng/ml, 1.00+/-0.09(S.E.M.)ng/ml and 1.33+/-0.13(S.E.M.)ng/ml, respectively. The difference of SDC between at control and under 240mg/day of verapamil was significant statistically(p<0.05). 5. Digoxin 0.75mg single-dose studies of bioavailability in 11 healthy volunteers showed a statistically significant difference(p<0.05) of the area under the 8-hour SDC curve between the digoxin only group and the digoxin plus aluminium hydroxide gel group. The area under the curve was 680+/-25(S.E.M.) min*ng/ml and 509+/-29(S.E.M.) min*ng/ml, respectively.
Atrial Fibrillation
;
Biological Availability
;
Cardiac Complexes, Premature
;
Digoxin*
;
Drug Interactions
;
Echocardiography
;
Healthy Volunteers
;
Heart Failure
;
Heart Rate
;
Humans
;
Quinidine
;
Silicon Dioxide
;
Systole
;
Verapamil
6.Reconstruction of the Paralyzed Flexor Muscles in hand: Omer's Technique
Myung Sang MOON ; Dong Sick LEE ; Jae Young LEE
The Journal of the Korean Orthopaedic Association 1983;18(1):130-132
The hand is an organ of both motion and sensibility. Motion is necessary for the highly adaptive functions of pinch, grasp, and hook. When a major muscle is paralyzed, the balance of the hand is disrupted. The objective of reconstructive procedure is to achieve a limited but balanced functional performance by means of redistributing assets rather than creating new motor and sensory units. Among the variable methods of treatment, the tendon transfer is a useful method in restoring the lost functions of the paralyzed hand. Authors reviewed 3 cases of paralyzed hands: the first one had an impairment of the opposition and flexion of the thumb caused by brachial plexus injury; the second one had an adducted thumb and a flexion contracture of the index and middle fingers due to a severe compression injury to forearm; the third one was a quadriplegics due to the C5-6 fracture-dislocation, but fortunately had a function of active flexion in ring and little fingers. They were treated by Omer's technique plus other reconstructive procedures for the paralysis at the Department of Orthopaedics, Catholic Medical Center from 1978 to 1981. By this procedure gratifying results such as restoration of pinching and grasping function were obtained.
Brachial Plexus
;
Contracture
;
Fingers
;
Forearm
;
Hand Strength
;
Hand
;
Methods
;
Muscles
;
Paralysis
;
Tendon Transfer
;
Thumb
7.Changes of Cerebral Blood Flow Velocity before and after Closure of Ductus Arteriosus using Doppler Ultrasound in NormalFull-term Newborns.
Myung Su LEE ; Young Mi HONG ; Kyung Hee KIM
Journal of the Korean Pediatric Society 1995;38(12):1620-1628
No abstract available.
Blood Flow Velocity*
;
Ductus Arteriosus*
;
Humans
;
Infant, Newborn*
;
Ultrasonography*
8.Hematological reference values in the healthy adults.
Young Jin KIM ; Myung Soo HYUN ; Hyun Woo LEE
Yeungnam University Journal of Medicine 1991;8(1):154-165
To establish the hematological reference values in the healthy adults visited our hospitals, following examination were done on 2823 persons by Coulter Counter Model S-plus II ; white blood cell count (WBC), red blood cell count (RBC), hemoglobin (Hb), hematocrit (Hct), meant corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), red cell distribution width (RDW), platelet, plateletcrit, mean platelet volume (MPV) and platelet distribution width (PDW). The following results are obtained. 1) Male, mean value of WBC; 6,800±2,680 (2SD)/µl Female, mean value of WBC; 5,950±2,380 (2SD)/µl 2) Male, mean value of RBC; 428±60 (2SD)x104/µl Female, mean value of RBC; 415±56 (2SD)x104/µl 3) Male, mean value of Hb; 15.4±1.8 (2SD) g/dL Female, mean value of Hb; 13.0±1.6 (2SD) g/dL 4) Male, mean value of Hct; 45.3±5.0 (2SD)% Female, mean value of Hct; 38.2±4.6 (2SD)% 5) Male, mean value of MCV; 93.8±5.8 (2SD) fL Female, mean value of MCV; 92.2±7.4 (2SD) fL 6) Male, mean value of MCH; 31.8±2.2 (2SD) pg Female, mean value of MCH; 31.4±2.8 (2SD) pg 7) Male, mean value of MCHC; 34.0±1.2 (2SD)% Female, mean value of MCHC; 33.9±1.2 (2SD)% 8) Male, mean value of RDW; 12.7±1.0 (2SD)% Female, mean value of RDW; 12.6±1.4 (2SD)% 9) Male, mean value of Platelet; 242.9±87.8 (2SD) X103/µl Female, mean value of Platelet; 242.2±89.0 (2SD) X103/µl 10) Male, mean value of Plateletcrit; 0.201±0.076 (2SD)% Female, mean value of Plateletcrit; 0.204±0.076 (2SD)% 11) Male, mean value of MPV; 8.20±1.70 (2SD) fl Female, mean value of MPV; 8.36±1.82 (2SD) fl 12) Male, mean value of PDW; 16.1±0.8 (2SD)% Female, mean value of PDW; 16.0±0.8 (2SD)%
Adult*
;
Blood Platelets
;
Erythrocyte Count
;
Erythrocyte Indices
;
Female
;
Hematocrit
;
Humans
;
Leukocyte Count
;
Male
;
Mean Platelet Volume
;
Reference Values*
9.Congenital cystic adenomatoid malformation of the lung.
Myung In KIM ; Eung Joong KIM ; Seung Pyung LIM ; Young LEE
The Korean Journal of Thoracic and Cardiovascular Surgery 1991;24(8):819-823
No abstract available.
Cystic Adenomatoid Malformation of Lung, Congenital*
;
Lung*
10.The Mechanism of Blood Flow Generation during Closed Chest Cardiac Massage: Transesophageal Echocardiographic Monitoring.
Young Hi LEE ; In Chul CHOI ; Myung Won CHO
Korean Journal of Anesthesiology 1997;33(5):957-961
The mechanism of forward blood flow during closed chest cardiac massage remains controversial. Two theories have been suggested: the cardiac pump theory and the thoracic pump theory. Case report is presented to illustrate the use of transesophageal echocardiography during cardiopulmonary resuscitation. The findings included right and left ventricular compression, closure of the mitral valve during compression, opening of the mitral valve during the release phase, and atrioventricular regurgitation during compression, indicating a positive ventricular-to-atrial pressure gradient. These findings suggest that direct cardiac compression was the predominant mechanism of forward blood flow during cardiopulmonary resuscitation in this patient. Transesophageal echocardiography offers a new approach for study of the flows and cardiac morphologic features during chest compressions in humans. An understanding of the actual mechanisms involved is necessary if improved cardiopulmonary resuscitative techniques are to be rationally developed for enhancing the outcome of resuscitation.
Cardiopulmonary Resuscitation
;
Echocardiography*
;
Echocardiography, Transesophageal
;
Heart Massage*
;
Humans
;
Mitral Valve
;
Resuscitation
;
Thorax*