1.Effect of surface treatment on bond strength of porcelain laminate veneer to enamel.
Yong Seok BAN ; Hyun Gon CHUNG ; Soon Ho HONG
The Journal of Korean Academy of Prosthodontics 1991;29(1):255-264
No abstract available.
Dental Enamel*
;
Dental Porcelain*
2.Study on antigenic analysis and serial antibody titration by using leptospira interrogans isolated at Chungchongbukdo.
Kyung Hee PARK ; Seok Cheol HONG ; Woo Hyun CHANG
Journal of the Korean Society for Microbiology 1991;26(4):317-327
No abstract available.
Chungcheongbuk-do*
;
Leptospira interrogans*
;
Leptospira*
3.Treatment of torn discoid meniscus in children
Hong Chul LIM ; Seok Hyun LEE ; Yoon Sung CHUNG
The Journal of the Korean Orthopaedic Association 1995;30(1):97-103
In children, snapping knee syndrome and joint pain with the loss of physiological hyperextension strongly suggests a diagnosis of a torn discoid meniscus. We performed arthroscopic meniscectomy to treat torn discoid lateral meniscus on 19 knees and open meniscectomy on 9 knees of 26 children(average age: 10.9 yrs) from September, 1983 to October, 1993 at Guro hospital. According to Ikeuchi's grading system', excellent results were obtained in 14, good in 11, fair in 2 knees and poor in 1 knee which was associated with osteochondritis dissecans. The knees treated by partial meniscectomy showed less Fairbank's radiologic changes than those by total meniscectomy during the average follow-up 4.2 years(minimum 1 year, maximum 7 year 11 months).
Arthralgia
;
Child
;
Diagnosis
;
Follow-Up Studies
;
Humans
;
Knee
;
Menisci, Tibial
;
Osteochondritis Dissecans
5.A clinical study of supracondylar closing wedge osteotomy for cubitus varus.
Seok Hyun LEE ; Jae Suk CHANG ; Hong Chul SIN ; Jun Suk HONG
The Journal of the Korean Orthopaedic Association 1993;28(1):240-246
No abstract available.
Osteotomy*
6.A Clinical Study of Supracondylar Fracture of the Humerus in Children
Jay Suck CHANG ; Seok Hyun LEE ; Hong Chul LIM ; Seyng Soo HONG
The Journal of the Korean Orthopaedic Association 1989;24(1):139-147
Supracondylar fracture of humerus is the most common fracture about the elbow in children and much has been written about its treatment and the prevention of both Volkmann's ischemia with contracture and cubitus varus deformity. In a retrospective survey of 155 children with supracondylar frscture of the humerus, 63 cases were found to have sufficient clinical and retrospective data to classify the fracture. 1. The average age was 6.5 years ranged from 1 year 3 months to 14 years and sex ratio was 2.2: 1(M:F) 2. 62 cases(98.4%) were extension type and 1 case(1.6%) was flexion type. In extension type, displacement was posteromedial 30 cases(47.6%), posterolatera117 cases(26.9%), posterior 10 cases(15.9%) and undisplaced 5 cases(7.9%). 3. Fracture level was divided into 3 Groups. Trans-olecranon fractures were 47 cases(74.6%), proximal to olecranon fractures were 11 cases(17.5%) and distal to olecranon fractures were 5 cases(7.9%). According to age distribution lower age group involves the distal part and higher age group involves proximal part. 4. Transverse fractures were 39 cases(61.9%) and oblique fractures were 24 cases(38.1%). In oblique fracture, postero-anterial oblique fractures were 19 cases(30.2%), medio-lateral oblique fractures 3 cases(4.8%), and latero-medial 2 cases(3.2%). In oblique fractures redisplacements were more common in P-A oblique csse. 5. In the treatment of fracture, 31 cases(49.2%) were treated with closed reduction and percutaneous pinning, 26 cases(41.3%) were treated with closed reduction and splint immobilization, 3 cases(4.8%) were treated with open reduction and K-wire fixation, 3 cases(4.8%) were treated with skeletal traction. 6. Functional results according to degree of initial displacement was worse in some displaced(Grade II) cases, rather than total displaced (Grade IV) or displaced with rotation (Grade III) cases. 7. Complications in splint immobilzation method were cubitus varus deformity 2 cases, nerve injury 2 case, and in k-wire fixation method, nerve injury 5 cases and pin migration 1 case.
Age Distribution
;
Child
;
Clinical Study
;
Congenital Abnormalities
;
Contracture
;
Elbow
;
Humans
;
Humerus
;
Immobilization
;
Ischemia
;
Methods
;
Olecranon Process
;
Retrospective Studies
;
Sex Ratio
;
Splints
;
Traction
7.Urodynamic Analysis of Old-aged Men with Persistent Lower Urinary Tract Symptoms after Medical Treatments.
Phil Hyun SONG ; Hong Seok SHIN
Journal of the Korean Continence Society 2009;13(2):108-115
PURPOSE: The cause and pathogenesis of lower urinary tract symptoms (LUTS) in elderly men is unclear. We analyzed the clinical and urodynamic findings of elderly patients with LUTS to search for accurate diagnosis and effective treatments. MATERIALS AND METHODS: We performed a retrospective chart review of 154 male patients older than 65 years old with LUTS who underwent urodynamic studies between January 2002 and December 2008. The patients were divided into irritative and obstructive symptom groups according to their chief complaints. The urodynamic findings between two groups were compared. And the prevalence of detrusor dysfunction (either detrusor underactivity; DU or detrusor overactivity; DO) according to age, history of urinary retention, the presence of an indwelling urethral catheter, neurologic disease, or diabetes was estimated. RESULTS: The mean age of men was 70.8+/-4.5 years. On urodynamics, detrusor dysfunction was detected in 116 (75.4%) of 154 patients. Seventy eight (50.6%) patients showed demonstrable evidence of DU of whom 33 (21.4%) had concomitant DO, while 18 (11.7%) had concomitant bladder outlet obstruction (BOO). BOO and DO was identified in 67 (43.5%) and 71 (46.1%) patients, respectively. The prevalence of was significantly greater in the presence of history of acute urinary retention and an indwelling urethral catheter. CONCLUSION: One hundred forty one (91.6%) elderly patients with LUTS showed urodynamic abnormalities such DO, DU and BOO. Urodynamic study would play a important role in establishing a correct diagnosis in elderly patients with LUTS and deciding on additional treatments.
Aged
;
Diagnosis
;
Humans
;
Lower Urinary Tract Symptoms*
;
Male
;
Multiple Endocrine Neoplasia Type 1
;
Prevalence
;
Retrospective Studies
;
Urinary Bladder Neck Obstruction
;
Urinary Catheters
;
Urinary Retention
;
Urinary Tract
;
Urodynamics*
8.Histologic evaluation and removal torque analysis of nano- and microtreated titanium implants in the dogs.
Seok AHN ; Mong Sook VANG ; Hong So YANG ; Sang Won PARK ; Hyun Pil LIM
The Journal of Advanced Prosthodontics 2009;1(2):75-84
STATEMENT OF PROBLEM: A number of studies about the nano-treated surfaces of implants have been conducting along with micro-treated surfaces of implants. PURPOSE: The purpose of this study was to get information for the clinical use of nano-treated surfaces compared with micro-treated surfaces by measuring removal torque and analyzing histological characteristics after the placement of various surface-treated implants on femurs of dogs. MATERIAL AND METHODS: Machined surface implants were used as a control group. 4 nano-treated surface implants and 3 micro-treated surface implants [resorbable blast media surface (RBM), sandblast and acid-etched surface (SAE), anodized RBM surface] were used as experimental groups. Removal torque values of implants were measured respectively and the histological analyses were conducted on both 4weeks and 8weeks after implant surgery. The surfaces of removed implants after measuring removal torque values were observed by scanning electron microscopy (SEM) at 8 weeks. RESULTS: 1. Removal torque values of the nano-treated groups were lower than those of micro-treated groups. 2. Removal torque values were similar in the anodized RBM surface groups. 3. On the histological views, there was much of bone formation at 8 weeks, but there was no difference between 4 and 8 weeks, and between the types of implant surfaces as well. CONCLUSION: It is suggested that implant topography is more effective in removal torque test than surface chemistry. To get better clinical result, further studies should be fulfilled on the combined effect of surface topography and chemistry for the implant surface treatments.
Animals
;
Dogs
;
Femur
;
Microscopy, Electron, Scanning
;
Osteogenesis
;
Titanium
;
Torque
9.A Comparative Sudy of the Lactose, Total Nitrogen, Total Lipid Content of Preform and Term Human Breast Milk.
Korean Journal of Community Nutrition 2003;8(4):584-594
The lactose, total nitrogen and total lipid contents of human breast milk were determined longitudinally after protein and term deliveries. Milk samples were obtained from day 2 to 5, on weeks 1, 2, 4, and 6 after preform (PM: n=24) and term (TM: n=22) deliveries. The lactose contents of PM and TM increased from 5.28 g/dl and 5.93 g/dl at days 2 to 5, to 7.95 g/dl,7.87 g/dl at 6 weeks, respectively. The total nitrogen contents of PM and TM decreased significantly during the first 6 weeks after birth (from 374 to 220 mg/dl versus 382 to 220 mg/dl respectively). However the total lipid contents of the PM and TM increased during the same periods. Significant differences in the total lipid contents between the PM and TM were 2.15 versus 3.27 g/dl at 2 weeks, and 3.26 versus 2.52 g/dl at 6 weeks, respectively. The energy intakes of preform infants was 134.8 kcal/kg/d during the 6 weeks of lactation, which satisfied with energy requirements (85-130 kcal/kg/d) of the preform infants.
Breast*
;
Female
;
Humans*
;
Infant
;
Lactation
;
Lactose*
;
Milk
;
Milk, Human*
;
Nitrogen*
;
Parturition
10.Pseudo-Meigs' syndrome associateed with pedunculated subserosal myoma and elevated CA-125 level.
Seung Hyun HONG ; Youn Seok CHOI
Korean Journal of Obstetrics and Gynecology 2005;48(12):2998-3003
Pseudo-Meigs' syndrome consists of pleural effusion, ascites, and benign tumors of the ovary other than fibromas. These benign tumors include those of the fallopian tube or uterus and mature teratomas, struma ovarii, and ovarian leiomyomas. Although uterine leiomyomas are frequent gynecological finding, they are rarely cause pseudo-Meigs' syndrome with elevated serum CA 125 levels. A case of pseudo-Meigs' syndrome associated with subserosal leiomyoma is presented with a brief review of literatures.
Ascites
;
Fallopian Tubes
;
Female
;
Fibroma
;
Hydrothorax
;
Leiomyoma
;
Myoma*
;
Ovary
;
Pleural Effusion
;
Struma Ovarii
;
Teratoma
;
Uterus