1.Treatment of Chronic Osteomyelitis by Using Antibiotic-Acrylic Bone Cement Composites: Preliminary Report of 7 Cases
Jin Hwan AHN ; Myung Chul YOO ; Myung Hwan OH
The Journal of the Korean Orthopaedic Association 1981;16(4):897-904
Antibiotic-acrylic bone cement composites demonstrated antibacterial activity as a result of diffusion of antibiotic from bone cement into surrounding enviroment, accordingly, the use of antibiotic incorporation to bone cement for the prevention and treatment of infection after joint surgery replacement has been adovocated. Early report of clinical success by using antibiotic-acrylic bone cement composites are encouraging. Our authors applied this concept to the treatment of chronic osteomyelitis. Antibiotic contained with bone cement was chosen by sensitivity test on pus culture finding. Seven cases of chronic osteomyelitia treated by using antibiotic-acrylic bone eement composites were .studied in the Department of Orthopaedic Surgery, Kyung Hee University Hospital from July 1979 to March 1981. The follow-up period was from 3 months tc 22 months. The results were as follow: 1. Six cases showed no evidence of recurrence except one by using antibiotic acrylic bone cement composites. 2. The impregantion of antibiotic in acrylic bone cement shall be regarded to be effective in increasing the local antibacterial activity by leaching the antibiotic into surrounding tissue over a period continiously in treatment of chronic osteomyelitis. 3. The use of antibiotic-acrylic bone cement compositea into dead space by saucerization are consid- ered an one such approach to the decrease of dead space. 4. The impregnation of antibiotic in acrylic bone cement is regarded a new concept in treatment of chronic osteomyelitis.
Bone and Bones
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Diffusion
;
Follow-Up Studies
;
Joints
;
Osteomyelitis
;
Polymethyl Methacrylate
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Recurrence
;
Suppuration
2.Arthroscopic treatment of the discoid meniscus.
Jin Hwan AHN ; Cheol Jin OH ; Seung Ki KIM
The Journal of the Korean Orthopaedic Association 1991;26(3):854-862
No abstract available.
3.Can Endometriosis Affect the Clinical Outcomes in Patients Undergoing IVF-ET?.
Byeong Jun JUNG ; Hyun Jin SONG ; Ik Hwan OH
Korean Journal of Fertility and Sterility 2002;29(3):223-227
No abstract available.
Endometriosis*
;
Female
;
Humans
4.Knowledge of and Compliance with Cough Etiquette among Nursing and Allied Health College Students.
Og Son KIM ; Jin Hwan OH ; Kyung Mi KIM
Korean Journal of Nosocomial Infection Control 2012;17(2):61-69
BACKGROUND: This study aims to examine the knowledge of nursing and allied health-college students on cough etiquette and their actual compliance to it. METHODS: For data collection, a structured questionnaire was created and handed out to students from 3 colleges from November 9 to November 18, 2011. The questionnaires were distributed to 300 students, and responses from 253 students were used for data analysis. RESULTS: In total, 54.85% students provided correct answers to questions regarding their knowledge on cough etiquette. The compliance score was 34.39 (compliance rate: 61.41%). There was a positive association between knowledge of proper cough etiquette and compliance with those procedures. CONCLUSION: It can be concluded that college student's knowledge of cough etiquette is low, and subsequently that their compliance with the proper procedures of cough etiquette was low. Therefore, it is necessary to develop a program to build knowledge of proper cough etiquette amongst these students.
Compliance
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Cough
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Data Collection
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Hand
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Humans
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Surveys and Questionnaires
5.Radiologic assessment of Endoscopically reconstructed ACL using Bone - patellar tendon - bone.
Hwan Ahn JIN ; Oh Soo KWON ; Byung Joo PARK
The Journal of the Korean Orthopaedic Association 1997;32(5):1314-1323
Endoscopic ACL reconstruction using bone-patellar tendon-bone has been considered the gold standard in the field of reconstructive ACL surgery. Technically, graft must be placed at isometric point. But it is difficult to evaluate the placement of graft postoperatively. The purpose of this study is to determine the radiological ideal position of graft by comparing postoperative results with the graft placement. Seventy cases of endoscopic ACL reconstruction were reviewed and classified according to the femoral and tibial graft position on radiologic imaging. The femoral graft position was classified in relation to angle of graft on anterior position view and distance from posterior margin of graft to the inner surface of posterior cortex on lateral view. The tibial graft position was classified in relation to intercondylar eminence on anterior posterior view and lateral view. Knee score (modified Marshall, Lysholum), manual anterior instability test (Lachman test, Pivot shift test) and arthrometer measurement were checked to evaluate postoperative results in each case. The results of this study implicate that knee joint in which femoral graft was oriented at direction of 11 o clock centring around 68 degree respect to tibial joint and placed within 3mm from posterior cortex showed higher knee score and lesser laxity. In cases of tibial side, the graft oriented to intercondylar eminence (AP view) and placed anterior to intercondylar eminence (lateral view) showed higher knee score and lesser laxity.
Joints
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Knee
;
Knee Joint
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Patellar Ligament*
;
Transplants
6.Association of Schizophrenia with Pathological Aging : A Behavioral and Histological Study Using Animal Model.
Jin Sook CHEON ; Byoung Hoon OH ; Hwan Il CHANG
Journal of the Korean Society of Biological Psychiatry 1998;5(1):83-94
OBJECTIVES: Phencyclidine(PCP) or PCP-like substances such as ketamine have been know to rekindle the cognitive dysfunction in schizophrenia. The aims of this study were to identify whether PCP-like substances can produce cognitive deficit in schizophrenia, to discuss relation with aging process, and finally to speculate underlying neurochemical mecha-nisms by various drug responses. METHODS: In experiment I, radial maze tests were done in 24 Sprague-Dawley rats for 3 days to get baseline data. Being divided into 4 groups(6 rats respectively) of normal aged, normal adult controls, atropine-treated and ketamine-treated, the radial maze tests were repeated on every week for 6 weeks, and then the rats were sacrificed by intracardiac perfusion with phosphate-buffered 10% formaldehyde solution for histology. The brain specimen was stained with hematoxylin-eosin to count cells in the prefrontal cortex and hippocampus. In experiment II, radial maze tests were done for 48 rats before any drug treatment and only after ketamine administration. Thereafter, haloperidol, bromocriptine, clonidine, nimodipine, tacrine, valproic acid, naloxone and fluoxetine were intramuscularly injected on every other day in addition to ketamine. Radial maze tests were repeated on every week for 6 weeks, and then rats were prepared by the same procedure for histology. RESULTS: 1) Reaction times of radial maze tests of atropine-treated rats were significantly prolonged than those of normal aged(p<0.05) or normal adult controls(p<0.05). Cell numbers of prefrontal cortex & hippocampus in ketamine-treated rats were significantly reduced than those in normal aged(p<0.05) or normal adult controls(p<0.005). 2) Reduced cell numbers by ketamine became significantly raised by tacrine administration in prefrontal cortex $ hippocampus(p<0.05), while there were no significant changes on radial maze test. Cell numbers also tended to be raised by nimodipine, fluoxetine and haloperidol administration. CONCLUSIONS: In conclusion, the visuospatial memory disorders in ketamine-induced psychotic rats might be partly associated with aging process. Furthermore, the responses to the various drugs suggested cholinergic system might have an important role in the neurochemical mechanism of the cognitive dysfunction in ketamine-induced psychosis. Otherwise, calcium metabolism as well as serotonergic and dopaminergic systems seemed to be possibly related.
Acetylcholine
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Adult
;
Aging*
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Animals*
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Brain
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Bromocriptine
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Calcium
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Cell Count
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Clonidine
;
Fluoxetine
;
Formaldehyde
;
Haloperidol
;
Hippocampus
;
Humans
;
Ketamine
;
Memory Disorders
;
Metabolism
;
Models, Animal*
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Naloxone
;
Nimodipine
;
Perfusion
;
Prefrontal Cortex
;
Psychotic Disorders
;
Rats
;
Rats, Sprague-Dawley
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Reaction Time
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Schizophrenia*
;
Tacrine
;
Valproic Acid
7.New Radiologic Projection for Acetabular Rim
Myung Chul YOO ; Jin Hwan AHN ; Dong Chul OH
The Journal of the Korean Orthopaedic Association 1988;23(2):455-463
Author take off the pelvic bone from the cadaver and made the accruate reconstructed the pelvic bone as well as normal bone. Then author setted the pelvic bone into the specialized acrylic globe as the normal person erect position. For the acetabular posterior wall, projected the radiologic beam from the 0°to 45°cephalad direction and then pelvic bone rotated internally 0°~45°, each section is 5°. For acetabular anterior wall, projected the radiologic beam from 0° to 45° caudal direction and pelvic bone rotated externally 0°~45°, each section is 5° too. From the pelvic bone experiments, author get on the good radiologic angle for acetabular anterior and posterior wall. Ane then make the radiologic projection for normal person as the pelvic experiment. In pelvic bone model experiment, For acetabular anterior wall and anterior colum, external rotation 20°~30° caudal tilting 30°~45° angle projection has good visualization. For acetabular posterior wall and posterior column (including anterior column partially), internal rotation 15°~20° cephalad tilting 15°~30°angle projection has the good visualization. In normal person experiment, For acetabular anterior wall and anterior column, external rotation 20°caudal tilting 30°angle projection shows the good visualization. For acetabular posterior wall and column (including anterior column partially) internal rotation 20°cephalad tilting 30°angle projection shows good visualization. From the pelvic bone model and normal person experiments, the following conclusion are obtained. 1. For posterior wall and posterior column(including anterior column partially), internal rotation 20°, cephalad tilting 30°view is good. 2. For anterior wall and anterior column, external rotation 20°, caudal tilting 30°view is good.
Acetabulum
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Cadaver
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Humans
;
Pelvic Bones
8.Extraskeletal Neoplasm Resembling Ewing's Sarcoma: Report of one case
Jin Hwan AHN ; Myung Chul YOU ; Suck Hyun LEE ; Myung Hwan OH ; Bong Kon KIM
The Journal of the Korean Orthopaedic Association 1977;12(2):251-255
Extraskeletal Neoplasm Resembling Ewings Sarcoma was firstly reported with comprehensive review of 39 cases by L. Angervall and F.M. Enzinger in 1975. The tumors chiefly affected young adults and most commonly involved the soft tissue of lower extremity. Microscopically, they were consisted of solidly packed small, round or ovoid cells arranged in sheets or lobules, which were indistinguishable from those of the Ewings sarcoma of bone. The authors recently experienced a soft tissue sarcoma occurring in deltoid area of young male patient, which was diagnosed extraskeletal neoplasm resembling Ewings sarcoma. The case review is presented.
Humans
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Lower Extremity
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Male
;
Sarcoma
;
Sarcoma, Ewing
;
Young Adult
9.Clinical Study of Total Hip Prosthesis Replacement: Report of 69 cases
Jin Hwan AHN ; Myung Chul YOU ; Myung Hwan OH ; Dong Wook PARK ; Young Yong KIM
The Journal of the Korean Orthopaedic Association 1977;12(4):709-718
The goals of hip arthroplasty have been to eliminate pain, decrease deformity, increase morbility and obtain stabiIity. Currently total hip replacement is the best avaliable procedure to accomplish these goals. A prospective study of total hip arthroplasty was begun at the orthopedic dept of Kyung Hee Medical College in 1974. Between May, 1974 and June, 1977. 69 total hip replacements of the Charnley type, the Trapesoidal-28 type and the Muller type were peformed by the authors. Of the 60 Patients involved in this study, 9 had bilateral operations. The Charnley type Prosthetic device was used in 56 cases, the Trapesoidal-28 type in 7 cases and the Muller type in 6 cases. Complications included wire breakage, dislocation, loosening, femur shaft perforation, nonunion of greater-trochanter, acetabular protrusion, transient femoral nerve palsy, femur shaft fracture, infection, socket lateralization, ectopic bone formation and death. In 59 patients of the 60 patients, 53 patients felt that they were definitely improved, 5 patients felt their condition was unchanged and 1 patient felt her condition was worse.
Acetabulum
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Arthroplasty
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Arthroplasty, Replacement, Hip
;
Clinical Study
;
Congenital Abnormalities
;
Dislocations
;
Femoral Nerve
;
Femur
;
Hip Prosthesis
;
Hip
;
Humans
;
Orthopedics
;
Osteogenesis
;
Paralysis
;
Prospective Studies
10.Treatment of Fractures of the Long Bones by Hoffmann's External Anchorage
Bong Kun KIM ; Myung Chul YOO ; Jin Hwan AHN ; Myung Hwan OH ; In Wha JUNG
The Journal of the Korean Orthopaedic Association 1979;14(4):634-642
No abstract available in English.