1.Development of a device constantly stimulating tuning fork and variability of its vibration perception time.
Jong Young LEE ; Dae Yong HONG ; Hyeong Ryeol YOON
Korean Journal of Preventive Medicine 1991;24(1):93-97
No abstract available.
Vibration*
2.The experimental of Saethre-Chotzen syndrome: case report.
Dae Hyun LEW ; Byung Yoon PARK ; Young Ho LEE
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1991;18(2):281-286
No abstract available.
Acrocephalosyndactylia*
3.Femoral Neck Fracture in Young Adult: 25 Cases Treated with Multiple Pinning
Hyung Ku YOON ; Kwang Pyo JEON ; Dae Eun JUNG ; Ho Seung JEON ; Dae Young JANG
The Journal of the Korean Orthopaedic Association 1996;31(2):235-246
In general. femoral neck fracture in young adult presents poor prognosis due to the high velocity injury, high angle shear fracture, and poor candidate for arthroplasty. In addition to the relative rarity of the injury, the high incidence of aseptic necrosis and nonunion have been reported in the management of these fractures. 25 cases of femoral neck fracture in young adult were treated with multiple pinning and analyzed at Sung-Ae general hospital from 1987 to 1994 after 28 months follow up in average with review of charts, X-ray and clinical result. There were 18 male and 7 female, 5 cases of them had significant polytrauma to other organs or skeletal system, authors tried to treat them as soon as possible to decrease the interval time between fracture and fixation (the average time was 39.7 hours.) Union occurred in all of Garden stage I (4 cases) and II (4 cases), but in Garden stage III (7 among 8 cases) and IV (7 among 9 cases) the union rate was lower. Average union time was 16.5 weeks. The incidence of complications (12%, 3 among 25 cases) was higher in displaced fractures group (Garden stage III, IV) and also in poorly reduced group of Garden’s alignment index. In conclusion, the prognosis of femoral neck fractures in young adult was related with mainly initial reduction and rigid fixation than the initial injury.
Agriculture
;
Arthroplasty
;
Female
;
Femoral Neck Fractures
;
Femur Neck
;
Follow-Up Studies
;
Hospitals, General
;
Humans
;
Incidence
;
Male
;
Multiple Trauma
;
Necrosis
;
Prognosis
;
Young Adult
4.Acute Neuropathic Joint in Diabetic Foot: Plain Radiographic Findings.
Heung Sik KANG ; Yong Kyu YOON ; Dae Young YOON ; Jung Suk SIM ; Chu Wan KIRN
Journal of the Korean Radiological Society 1994;30(5):929-933
PURPOSE: To determine the plain film findings of acute neuropathic joint in diabetic foot. MATERIALS AND METHODS: Acute neuropathic joint in diabetic foot was considered when fragmentation of the articular ends of bone and subluxation of the affected joint developed within eight weeks after clinical onset of diabetic gangrene. Eight toes of six diabetics were satisfactory to our criteria. We analyzed plain radiographic findings of the affected joint and soft tissue, interval changes in follow-up radiographs, and deformities after healing. RESULTS: The time interval between clinical onset of gangrene and bone destruction ranged from 2 weeks to 4 weeks(mean 2.6 weeks). Plain radiographs showed fragmentation of the articular ends, subluxation, and soft tissue swelling of the metatarsophalangeal joint or interphalangeal joint. The significant feature of these patients was rapid progression of the lesions. Clinically, all patients had diabetic gangrene in affected toes, however, there was no evidence of osteomyelitis in our series. Amputation was done in 2 cases, and lesions in 3 of the remaining 4 cases were repaired spontaneously with regression of gangrene, leaving radiological residua such as pointed-end, tapered-end, and ball and socket deformity. CONCLUSION: Rapid disorganization of the joint with associated evidence of soft tissue gangrene in plain radiograph is believed to be valuable for the diagnosis of diabetic osteoarthropathy.
Amputation
;
Congenital Abnormalities
;
Diabetic Foot*
;
Diagnosis
;
Follow-Up Studies
;
Gangrene
;
Humans
;
Joints*
;
Metatarsophalangeal Joint
;
Osteomyelitis
;
Toes
5.Significanse of Renal Ultrasonography and MAG3 (Technetium-99m-Mercaptoacetyltriglycerine) Scan in Hydronephrosis during Infancy.
So Young LEE ; Kun Suk KIM ; Dae Hyuk MOON ; Chong Hyun YOON ; Young Seo PARK
Korean Journal of Nephrology 1998;17(4):574-582
A prospective study had been performed in infants with hydronephrosis due to ureteropelvic junction stenosis to determine adequate management plan. Forty infants (47 renal units) were selected for the study during the period from January 1995 to July 1997 in the Department of Pediatrics, Asan Medical Center. They were diagnosed prenatally or early postnatally (<3 months of age) on the basis of renal ultrasonography and techotium-99m-mercap- toacetyltriglycerine (MAG3) scan. The antero-poste- rior pelvic diameter (APPD) was measured from serial renal ultrasonography and relative renal function and clearance half time (T1/2) were calculated from serial MAG3 scan. Those who had accompanying other urogenital anomalies or vesicoureteral reflux were excluded in this study. Follow-up tests (ultrasonography and MAG3 scan) and surgical corrections, if necessary, were performed according to the predetermined algorithrn. The male to female ratio was 3: 1. Hydronephrosis was involved the left side in 24 renal units, the right side in 9 renal units, and the bilateral sides in 14 renal units. All the hydronephrotic renal units were divided into 2 groups; Group A (19 renal units) those had taken surgical correction, and group B (28 renal units) those revealed spontaneous improvement without surgical correction. The mean follow-up duration was 7.2+/-6.3 months in group A and 14.1+/-12.6 months in group B. The mean APPD in the first postnatal renal ultrasonography was 19.4+6.8 mm in group A and 10.0+/-3.0mm in group B and this was statistically significant (P<0.01). The rela- tive renal function of group A in the first MAG3 scan was under 35% in 7 renal units and over 35M in 12 renal units. In group B, the relative renal function was over 35% in the all 28 renal units. Tl/2 in the first MAG3 scan was longer than 20 minutes in the all 19 renal units in group A. In group B, Tl/2 was shorter than 10 minutes in 15 renal units, between 10 minutes and 20 minutes in 6 renal units, and longer than 20 rninutes in 7 renal units. The mean APPD of the 7 renal units in group B of which Tl/2 was longer than 20 minutes was 12.62.6mm and that of group A was 19.4+/-6.8mrn and this was statistically significant (P<0.01). In conclusion, the renal ultrasonography and MAG3 scan can be used effectively to determine the degree of the stenosis of the ureteropelvic junction in hydronephosis during infancy. When the babies are diagnosed with hydronephrosis due to ureteropelvic junction stenosis in the early infantile period, serial renal ultrasonography and MAG3 scan play an important role in the decision of the management.
Chungcheongnam-do
;
Constriction, Pathologic
;
Female
;
Follow-Up Studies
;
Humans
;
Hydronephrosis*
;
Infant
;
Male
;
Pediatrics
;
Ultrasonography*
;
Vesico-Ureteral Reflux
6.Apolipoprotein E Gene Polymorphism and Plasma Lipid Levels in Male Korean Patients with Chronic Renal Failure.
Yoon Ha LEE ; Hye Young KIM ; Wooseong HUH ; Se Ho CHANG ; Yoon Goo KIM ; Dae Joong KIM ; Ha Young OH
Korean Journal of Nephrology 1998;17(4):583-590
Accelerated atherosclerosis is not only a frequent complication but also the most common cause of death in patients with chronic renal failure (CRF). Although mechanisms are unclear, disorder of lipid metabolism may be a major factor. Since apolipo-protein (apo) E is known to play a major regulatory role in lipid metabolism, we evaluated apo E genotype in 72 male patients with CRF and compared with that in 194 rnale normal controls. In addition, we measured plasma lipid and apolipoprotein concentrations and evaluated them according to apo E genotype in patients and controls. Apo E genotype was determined with the INNO-LiPA Apo E kit (Innogenetics, Belgium), which is based on reverse hybridization. The results are as follows ; 1) The distribution of the three major apo E alleles in patients with CRF ( e 2: 6.2%, e 3: 80.6%, e 4: 13.2%) was not different from that in controls ( e 2: 4.1%, e 3: 87.6%, e 4: 8.3%). 2) In patients with CRF, total cholesterol, lowdensity lipoprotein (LDL) and high-density lipoprotein (HDL) levels were significantly lower and the triglyceride and lipoprotein (a) levels were significantly higher than those in controls. 3) In controls, E 4/3 group had significantly lower levels of HDL than E 3/3 and E 3/2 groups. In patients with CRF, E 4/3 group had significantly higher levels of total cholesterol and apo B lipoprotein than E3/2 group. In conclusion, although there was no significant difference in the apo E genotype frequencies between male patients with CRF and controls, apo E polymorphism may play an important role in the determination of individual differences in plasma lipids in male patients with CRF.
Alleles
;
Apolipoproteins B
;
Apolipoproteins E
;
Apolipoproteins*
;
Atherosclerosis
;
Cause of Death
;
Cholesterol
;
Genotype
;
Humans
;
Individuality
;
Kidney Failure, Chronic*
;
Lipid Metabolism
;
Lipoprotein(a)
;
Lipoproteins
;
Male*
;
Plasma*
;
Triglycerides
7.Percutaneous Catheter Drainage of Abdominal Abscesses and Fluid Collections: Outcome in 165 Cases.
Byung Ihn CHOI ; Joon Koo HAN ; Man Chung HAN ; Dae Young YOON ; Dae Hyun HWANG ; Tae Kyung KIM
Journal of the Korean Radiological Society 1995;32(2):269-274
PURPOSE: To evaluate the usefulness of percutaneous catheter drainage (PCD) in patients who have abdominal abscesses or fluid collections. MATERIALS AND METHODS: We performed PCD for 165 abscesses and fluid collections in 148 patients. The follow-up periods in these patients ranged from 15 days to 42 months (mean, 274 days). The lesion sites were subphrenic space in 46 cases, liver in 33, perihepatic space in 20, pancreas or peirpancreatic space in 14, pelvic cavity in 13, and retroperitoneum in 13. We evaluated the success, failure, and recurrence rates, the causes of failure or recurrence, the mean duration of drainage, and the complications of PCD. RESULTS: Of the 165 cases, one hundred-fifty nine(96.5%) were successfully cured, Although a partial success could be achieved, 2(1.2%) cases were failed and 4(2.4%) were recurred. Multiloculation or fistula formation were the main causes of the unsullessful cases. The duration of drainage rainged from 2 to 605 days (mean, 1 days). Complications occured in 12 cases(7%) during or after procedures, which included fever and chill in 7, transgression of pleura in 2, bowel perforation in 2, and bleeding through catheter in 1. CONCLUSION: PCD is an effective and safe method for various abdominal abscesses or fluid collections.
Abdominal Abscess*
;
Abscess
;
Catheters*
;
Drainage*
;
Fever
;
Fistula
;
Follow-Up Studies
;
Hemorrhage
;
Humans
;
Liver
;
Pancreas
;
Pleura
;
Recurrence
8.Intraoral malarplasty Including Zygomatic process of maxilla.
In Dae YOON ; Young Hwan KIM ; Jin Hwan KIM ; Joon CHOE ; Jae Hyun PARK
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(5):781-785
The malar bones are major determinants of mid-facial shape. In an oriental population, malar prominences are considered an unpleasing and undesirable feature because they give the face a triangular shape and may produce an emaciated and sunken appearance. There are two main operative approaches to malarplasty. One is a coronal approach and the other is a intraoral approach. The former possess advantages of symmetricity, accuracy and superiorly, medially and posteriorly aesthetical transposition of the malar bone. However, it has drawbacks such as a long visible scar on the scalp and extensive operation. Though the latter is a simple method avoiding a visible scar, it has some problems of asymmetricity, cheekdrooping, partial transposition of the malar complex and difficulty of aesthetic transposition. The authors intended to perform intraoral malarplasty for symmetrically aesthetic transposition of the whole malar bone without cheekdrooping. From February 1996 to January 1999, 9 female patients with prominent malar complex, in whom the coronal incision was objectionable, had intraoral malarplasty performed with 2-point fixation after L-shaped osteotomy involving the zygomatic process of maxilla, resulting in symmetric and aesthetically desirable three dimensional transposition of the malar bone.
Cicatrix
;
Female
;
Humans
;
Maxilla*
;
Osteotomy
;
Scalp
;
Zygoma
9.Structural Relationships between Infancy Mothers' Relational Variables and Parenting Stress.
Journal of the Korean Society of Maternal and Child Health 2016;20(2):152-162
PURPOSE: This study examined structural relationships between parenting stress and mothers' relational variables such as marital satisfaction, marital conflict, husbands' parental involvement, and maternal identity. METHODS: A nine-pathway hypothetical model was developed based on literature reviews. Two exogenous variables (marital satisfaction and marital conflict) and three endogenous variables (husbands' parental involvement, maternal identity, and mothers' parenting stress) were included in this model. Participants were 170 mothers of 5~7 month old children who visited the Public Health Center to be vaccinated between January 19 and March 27, 2015. Data were analyzed using descriptive statistics, correlations, and structural equation modeling with PASW/WIN 22.0 and AMOS 22.0. RESULTS: The model fit indices for the modified model were suitable for the recommended level. Among mothers' relational variables, maternal identity, marital conflict, and husbands' parental involvement directly influenced mothers' parenting stress. Marital satisfaction did not have a direct and indirect influence on mothers' parenting stress, however, it directly affected maternal identity and husbands' parental involvement. These predictive variables of mothers' parenting stress explained 56.0% of the model. CONCLUSION: This study expanded the understanding of mothers' parenting stress and can be used to develop effective interventions to decrease stress.
Child
;
Family Conflict
;
Humans
;
Mothers
;
Parenting*
;
Parents*
;
Public Health
10.Comparison of the Corneal Astigmatism Between Suture Methods After 7mm Scleral Pocket Incision Catartact Surgery.
Kyung Hun LEE ; Dae Young YOON ; Seung Hun RHO
Journal of the Korean Ophthalmological Society 1991;32(12):1068-1075
Most of cataract surgeons have made a great effort to minimize or nullify corneal 'astigmatism resulted from the incision and closure, but a completely ideal wound system still eludes us. The scleral pocket incision and continuous single knotted shoelace suture of it has been known as one of the technique for reducing postoperative astigmatism. Recently, horizontal suture closure of scleral pocket incisior has been introduced because it doesn't cause suture induced wound compression. We implanted standard PMMA intraocular lenses in the bag of 400 patients through 7mm scleral pocket incision following CCC (continuous circular capsulorhexis) and bimanual phacoemulsification. The incision was closed with either the shoelace or horizontal suture. The keratometric measurement was maded at postoperative 1 day, 1 week, 1 month, 2 month, 3 month and 6 month. In shoelace suture group, the preoperative corneal astigmatism appeared -0.14 +/- 0.15D of with the rule astigmatism (WTR); at one day postoperatively -2.75 +/- 1.61 of WTR, at 3 month 0.18 +/- 1.14D of against the rule astigmatism (ATR), 6 month 0.3 +/- 1.22D of ATR. In horizontal suture group, the preoperative corneal astigmatism appeared -0.22 +/- 1.22D of WTR; at one day postoperatively -1.05 +/- 1.28 of WTR, at 2 month 0.57 +/- 1.0 of ATR, at 6 month 0.72 +/- 1.91 of ATR. The difference between two suture methods was statistically significant (p<0.01 until 3 month, p<0.05 until 3-6 month).
Astigmatism*
;
Cataract
;
Humans
;
Lenses, Intraocular
;
Phacoemulsification
;
Polymethyl Methacrylate
;
Sutures*
;
Wounds and Injuries