1.Surgical Treatment of Acetabular Fracture
Dae Yong HAN ; Chong Hyuk CHOI ; Yong Jin YOON
The Journal of the Korean Orthopaedic Association 1994;29(1):166-175
Fractures of the acetabulum are relatively uncommon. But if fractures of the acetubulum are not accurately evaluated, classified, and reduced anatomically, major sequalae and complications are frequently developed. Because of complicated anatomy, difficulty with surgical exposure, severe comminution, and major associated injuries, the treatment of displaced acetabular fractures between conservative and operative methods is still controversial. We reviewed thirty five cases of displaced acetabular fracture treated operaively from January 1984 to December 1991. The prevalent age was the fourth decade. There was twenty seven cases of associated injuries, twenty two dislocations of the hip. According to the Letournel's classification, the most common fracture type was posterior wall and both column type. The fracture was fixed internally with only screws in thirteen cases and with plate and screws in twenty two cases. Among thirty five patients, five patients were lost in the follow up and another five patients had followed up lesser than one year. The mean duration of follow-up afrer the operation was three years (range, one to eight years). Among twenty five patients who had followed up more than one year, the satisfactory results were achieved in nineteen patients (76%) and the poor results were achieved in three patients (8%). The complications were post-traumatic arthritis, avascular necrosis of femoral head, osteomyelitis in iliac bone, skin necrosis, and heterotopic ossification.
Acetabulum
;
Arthritis
;
Classification
;
Dislocations
;
Follow-Up Studies
;
Head
;
Hip
;
Humans
;
Necrosis
;
Ossification, Heterotopic
;
Osteomyelitis
;
Skin
2.Computed Tomography Analysis of The Distal Radioulnar Joing
Yong Jin KIM ; Kie Bong WANG ; Chong Il YOO
The Journal of the Korean Orthopaedic Association 1994;29(2):534-539
The kinetic of the distal radioulnar joint(DRUJ) is complex. Motion of DRUJ consists of rotation of the around the relatively stationary ulna, poisoning of the ulna along its longitudinal axis, and translational motion, which occurs in the antero-posterior plane. In addition to the motions described, there also exists and abduction-adduction movements, diastatic motion. The CT scan is an ideal tool for evaluation the DRUJ. Since it provides a coronal cross-sectional image of the radius and ulna. The amount of translational motion occurring at the DRUJ has hot been determined. To evaluate the normal boundaries of the motion of the DRUJ, forty DRUJ in twenty normal volunteers(10 meles, 10 females) were evaluated by use of a computed tomography technique. The results were as follows. 1. Average translational motion according to forearm rotation was 3.1mm±1.3. 2. There was no statistic difference between both sex(p>0.05). 3. There was no statistic difference between dominant and nondominant hand(p>0.05). The contralateral criterion is useful in determing wrist problem.
Forearm
;
Poisoning
;
Radius
;
Tomography, X-Ray Computed
;
Ulna
;
Wrist
3.Reverse forearm flap as a soft tissue coverage after release of scar contracture of the hand.
Yong Jin KIM ; Dong Gi SHIN ; Chong Il YOO
The Journal of the Korean Orthopaedic Association 1992;27(7):1877-1884
No abstract available.
Cicatrix*
;
Contracture*
;
Forearm*
;
Hand*
4.A clinical study for malunited fractures of the distal end of the radius.
Chong Il YOO ; Yong Jin KIM ; Yeong Ho KIM
The Journal of the Korean Orthopaedic Association 1991;26(3):779-788
No abstract available.
Fractures, Malunited*
;
Radius*
5.Determination of 10 mycotoxin contaminants in Panax notoginseng by ultra performance liquid chromatography-tandem mass spectrometry.
Yong CHEN ; Chong-jun CHEN ; Jin LI ; Lian-jun LUAN ; Xue-song LIU ; Yong-jiang WU
Acta Pharmaceutica Sinica 2015;50(1):81-85
To ensure the quality and safety of Panax notoginseng, a method for the simultaneous determination of 10 mycotoxins in Panax notoginseng was developed using ultra performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS). The sample was extracted with acetonitrile and purified by HLB multifunction cleanup column. The separation was performed on a Phenomenex Kinetex XB-C18 column by gradient elution using methanol and 5 mmol·L(-1) ammonium acetate as mobile phase. The targeted compounds were detected in MRM mode by mass spectrometry with electrospray ionization (ESI) source operated in both positive and negative ionization modes. The linear relationships of the 10 mycotoxins were good in their respective linear ranges. The correlation coefficients (r) ranged from 0.9981 to 1.0000. The LOQs of the 10 mycotoxins were between 0.15 and 8.6 μg·kg(-1). The average recoveries ranged from 73.8% to 107.0% with relative standard deviations (RSDs) of 0.10%-10.9%. The results demonstrated that the proposed method was sensitive and accurate, and suitable for the mycotoxins quantification in Panax notoginseng.
Chromatography, High Pressure Liquid
;
Chromatography, Liquid
;
Drug Contamination
;
Mycotoxins
;
analysis
;
Panax notoginseng
;
chemistry
;
Tandem Mass Spectrometry
6.Corrective osteotomy of cubitus varus and valgus deformity.
Yong Jin KIM ; Chong Il YOO ; Byeong Sik KIM ; Ik Soo CHOI ; Jin Mo JEOUNG
The Journal of the Korean Orthopaedic Association 1991;26(1):158-166
No abstract available.
Congenital Abnormalities*
;
Osteotomy*
7.Cost-effectiveness Analysis of Home Care Services for Patients with Diabetic Foot.
Chong Rye SONG ; Yong Soon KIM ; Jin Hyun KIM
Journal of Korean Academy of Nursing Administration 2013;19(4):437-448
PURPOSE: This study was a retrospective survey to examine economic feasibility of home care services for patients with diabetic foot. METHODS: The participants were 33 patients in the home care services (HC) group and 27 in the non-home care services (non-HC) group, all of whom were discharged early after inpatient treatment. Data were collected from medical records. Direct medical costs were calculated using medical fee payment data. Cost-effectiveness ratio was calculated using direct medical costs paid by the patient and the insurer until complete cure of the diabetic foot. Effectiveness was the time required for a complete cure. Direct medical costs included fees for hospitalization, emergency care, home care, ambulatory fees, and hospitalization or ambulatory fees at other medical institutions. RESULTS: Mean for direct medical costs was 11,118,773 won per person in the HC group, and 16,005,883 won in the non-HC group. The difference between the groups was statistically significant (p=.042). Analysis of the results for cost-effectiveness ratio showed 91,891 won per day in the HC patients, and 109,629 won per day in the non-HC patients. CONCLUSION: Result shows that the cost-effectiveness ratio is lower HC patients than non-HC patients, that indicates home care services are economically feasible.
Costs and Cost Analysis
;
Diabetic Foot
;
Emergency Medical Services
;
Fees and Charges
;
Fees, Medical
;
Home Care Services
;
Hospitalization
;
Humans
;
Inpatients
;
Insurance Carriers
;
Medical Records
;
Retrospective Studies
8.In vitro inhibition of biophysical surface properties and change in ultrastructures of exogenous pulmonary surfactant by albumin or fibrinogen.
Jin PARK ; Chong Woo BAE ; Yong Mook CHOI
Journal of Korean Medical Science 1998;13(2):123-130
In order to observe the effects of serum albumin and fibrinogen on biophysical surface properties and the morphology of pulmonary surfactant in vitro, we measured the surface adsorption rate, dynamic minimum and maximum surface tension (min-, max-ST) by Pulsating Bubble Surfactometer, and demonstrated ultrastructures on a series of mixtures with varying concentrations of albumin or fibrinogen and Surfactant-TA. The albumin and fibrinogen significantly inhibited the adsorption rate and ST-lowering properties of surfactant through increasing STs of adsorption rate, min-ST, and max-ST. The characteristic morphology of the Surfactant-TA changed from lamellar rod-like structure with open ends into spherical structures with loss of their open ends by mixing with albumin or fibrinogen. These inhibitory effects of albumin and fibrinogen on surface properties of surfactant were dependent upon the increasing concentration of albumin or fibrinogen. We concluded that albumin and fibrinogen significantly altered surfactant function and its ultrastructural morphology in vitro. These findings support the concept that albumin and fibrinogen-induced surfactant dysfunction may play an important role in the pathophysiology of adult respiratory distress syndrome, and this adverse effect of albumin and fibrinogen on surfactant might be overcome by administration of large doses of exogenous surfactant.
Adsorption
;
Animal
;
Cattle
;
Fibrinogen/pharmacology*
;
Human
;
Pulmonary Surfactants/ultrastructure*
;
Pulmonary Surfactants/drug effects
;
Serum Albumin, Bovine/pharmacology*
;
Surface Properties
9.Mid term experience with the carbo medics medical valve.
Ki Chool KIM ; Hrun CHAE ; Hyuk AHN ; Yong Jin KIM ; Chong Whan KIM ; Ryang Joon RHO
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(10):753-760
No abstract available.
10.A Case of Short Arm Deletion of Chromosome 14.
Ra LEE ; Jin CHOI ; Woo Gill LEE ; Chong Moo PARK ; Yong Kyun PAIK
Journal of the Korean Pediatric Society 1981;24(2):164-168
No abstract available.
Arm*
;
Chromosomes, Human, Pair 14*