1.Demineralized allogenic and heterogenic bone matrix for repair of segmental bone defect in rabbits.
Myung Sang MOON ; Young Kyun WOO ; Doo Hoon SUN
The Journal of the Korean Orthopaedic Association 1991;26(4):1281-1288
No abstract available.
Bone Matrix*
;
Rabbits*
2.The effect of multilevel laminectomies on the cervical spine of cats: an experimental study.
Myung Sang MOON ; Kyu Sung LEE ; Doo Hoon SUN
The Journal of the Korean Orthopaedic Association 1991;26(1):247-255
No abstract available.
Animals
;
Cats*
;
Laminectomy*
;
Spine*
3.Acute Pyogenic Osteomyelitis in Innominate Bones Simulating Septic Hip in Children: A Report of Seven Cases
Myung Sang MOON ; Chun Tek LEE ; Sun IM
The Journal of the Korean Orthopaedic Association 1981;16(2):370-377
Acute hematogenous osteomyelitis adjacent to hip, though uncommon, should be included in the differential diagnosis of the patients presenting symptoms suggestive of septic arthritis of hip. When it occurs in children, it is particularly serious, because the diagnosis at first may be very difficult to be made. Our observations on seven cases reported here suggest the following findings to be helpful for early differential diagnosis of osteomyelitis of innominate bones from septic hip. 1. Among 7 cases, 4 had lesions in ischium, and 3 in os ilii. 2. The initial diagnosis on admission in 3 cases out of 7 was wrongly made to be septic arthritis of hip. 3. Early accurate diagnosis is essential to initiate early treatment, and there by shortens the convalescent time and minimize sequelae. 4. The diagnosis could be made in the cases by clinical and roentgenographic findings, such as fever, pain nature, antalgic posture of hip together with range of hip motion, tender point around hip and positive soft tissue and bony X-ray findings, but K-ray taken on early stage of infection could not provide any clue until bone lesion appears. 5. Gentle passive motion of hip is more easily permitted without eliciting severe pain and restriction of motion in the infection of innominate bone than in the septic hip. This also can be another clue to differentiate the acute osteomyelitis of innominate bone from septic arthritis of the hip.
Arthritis, Infectious
;
Child
;
Diagnosis
;
Diagnosis, Differential
;
Fever
;
Hip
;
Humans
;
Ischium
;
Osteomyelitis
;
Pelvic Bones
;
Posture
4.The Study of Pinching Type and Power
In Young OK ; Myung Sang MOON ; Han Joo KIM ; Sun IM
The Journal of the Korean Orthopaedic Association 1982;17(2):206-212
The pinching motion is thought to be one of fundamental hand functions, the power of which has been quantified by measuring it isometrically with variously devised pinch-meters. The present authors describe the investigations on the pinching power of 350 healthy persons, 200 male and 150 female Koreans, by the use of Preston Pinch Gauge. Six kinds of pinch were chosen: (1) thumb index finger tip pinch (1-2TP), (2) thumb-middle finger tip pinch (1-3TP), (3) thumb-index finger pulp pinch (1-2PP), (4) thumb-middle finger pulp pinch (1-3PP), (5) thumb-index-middle finger pulp pinch (3PP), (6) key pinch (KP), which were classified again into 19 kinds according to the shape of thumb, index, middle, or other fingers during each pinch. We describe those as principal type, hyperextension-flexion type, hyperextension type and other type into four. It should be justified to calculate the mean normal value of principal type pinching power in Korean. Principal type of pinch involves 1-2TP, 1-3TP, 1-2PP, 1-3PP, 3PP and KP, as to Hyperextension type of 1-2PP, 1-3PP, 3PP and KP. Other type of pinch involving 1-2TP, 1-3TP, 1-2PP, 1-3PP, 3PP and KP is different from Principal type simply because of the shape of nonjoining fingers during pinch. Generally, the pinching power of Principal type was clearly highest among the four types except for pulp pinches.
Asian Continental Ancestry Group
;
Female
;
Fingers
;
Hand
;
Humans
;
Male
;
Reference Values
;
Thumb
5.Arm Wrestler's Injury (Report of fourteen Cases)
Myung Sang MOON ; Doo Hoon SUN ; Han Joong KIM ; Yong IN
The Journal of the Korean Orthopaedic Association 1994;29(2):705-710
According to literatures, the different types of fractures can occur as a result of arm wrestling ; Spiral fracture of the humeral shaft associating often with a bntterfly fragment, fracture of medial epicondyle of the humerus, and the marginal radial head fracture with anterior dislocation. The last type is very rarely reported. In addition to the fracture occurrence, other injuries such as muscular strain of the arm, and sprain or luxation of the shoulder, elbow and wrist joints can be taken place. However, it is thought that the most of those injuries by arm wrestling have been treated simply by general practioners unreported. The arouse the attention of the jury of the game, wrestlers and the surgenons, the cases of bony injuries sustained during the arm-wrestling are reported. Thirteen patients were treated by us since 1977. Among them, five cases had fractures of the humeral shaft, and eight cases had fractures of medial epicondyle of the humerus. Among the five shaft fractures, three were treated by conservatively, and two by operatively. Among 8 avulsion fractures of the medial epicondyle only two were treated conservatively, and 6 operatively. One patient sustained the medial epicondylar avulsion fracture twice for which K-wire fixation treatment was done. The results of treatment were all satisfactory. However, because of the possibility of wrestlers sustaining such injuries. Arm wrestling should not be considered a totally benign sport.
Arm
;
Dislocations
;
Elbow
;
Head
;
Humans
;
Humerus
;
Shoulder
;
Sports
;
Sprains and Strains
;
Wrestling
;
Wrist Joint
6.Surgical Treatment of Pathological Dislocation of Child Hip After Acute Osteomyelitis of Ilium
Myung Sang MOON ; Doo Hoon SUN ; Chang Hoon JUNG
The Journal of the Korean Orthopaedic Association 1994;29(2):412-414
A case of pathological hip dislocation in a child, aged 2 years 6 months, who had surgical treatment, is reported. The boy has history of osteomyelitis of right ilium at age of 10 month, which ended up with the right hip dislocation. Postoperatively cephalocotyloid relation of the right hip was very well reestablished during five years of postoperative observation. Through this case, it is reconfirmed that a child hip has a natural remodelling power even in case of hip joint destruction.
Child
;
Dislocations
;
Hip Dislocation
;
Hip Joint
;
Hip
;
Humans
;
Ilium
;
Male
;
Osteomyelitis
7.Voluntary Habitual Hip Dislocation in a child
Myung Sang MOON ; Doo Hoon SUN ; Young Kee OH
The Journal of the Korean Orthopaedic Association 1994;29(3):1022-1025
Voluntary habitual dislocation of the hip is very rarely reported in children, and only 13 cases have been reported in the literature. We add a new case in a 5 year old boy. The boy did not have previous history of trauma, skeletal and/or soft tissue anomalies, nor known connective disease. He was treated by intertrochanteric varusinward rotation osteotomy of the affected hip on February 25, 1985 and was followed until January 11, 1993. Postoperative convalescence was uneventfully successful, and the hip developed well without any obvious dysplasia at the latest follow-up.
Child
;
Convalescence
;
Dislocations
;
Follow-Up Studies
;
Hip Dislocation
;
Hip
;
Humans
;
Male
;
Osteotomy
8.Treatment of Fracture of Shaft of Humerus by Ender Nailing
Myung Sang MOON ; Doo Hoon SUN ; Ik Joo AHN
The Journal of the Korean Orthopaedic Association 1994;29(6):1597-1601
Authors presented the experience of Ender nail treatment for the humeral shaft fractures in 24 patients. The results of treatment in all were satisfactory, though there were four cases of delayed union. Bridging callus was formed at 8.2 weeks on an average. The average clinical union time was 14 weeks. No complications developed during nailing procedure. A case of radial nerve palsy after fracture recovered spontaneously. Longer nails which hit the end of medullary canal of distal fragment distracted the fracture gap, and resulted in delayed union in 4 cases. Therefore, it is recommended to use the proper size of nail to avoid the distraction effect of the inserted nail, and to use two nails at minimum for better fixation. However, when intramedullary Ender nailing is properly done, single nailing also can give consistently good anatomic and functional results.
Bony Callus
;
Humans
;
Humerus
;
Paralysis
;
Radial Nerve
9.Role of Redistribution and 24 Hour Reinjection Images to assess Myocardial Viability in Patients with Acute Myocardial Infarction.
Seok Nam YOON ; Moon Sun PAI ; Chan H PARK ; Myung Ho YOON ; Byung Il CHOI
Korean Journal of Nuclear Medicine 1998;32(4):325-331
PURPOSE: We evaluated the importance of redistribution and 24 hour reinjection images in Tl-201 SPECT assessment of myocardial viability after acute myocardial infarction (AMI). MATERIALS AND METHODS: We performed dipyridamole stress-4 hour redistribution-24 hour reinjection Tl-201 SPECT in 43 patients with recent AMI (4-16 days). The myocardium was divided into 16 segments and perfusion grade was measured visually with 4 point score from 0 to 3 (absent uptake to normal uptake). A perfusion defect with stress score 2 was considered moderate. A defect was considered severe if the stress score was 0 or l (absent uptake or severe perfusion decrease). Moderate defect on stress image were considered viable and segments with severe defect were considered viable if they showed improvement of 1 score or more on redistribution or reinjection images. We compared the results of viability assess-ment in stress-redistribution and stress-reinjection images. RESULTS: On visual analysis, 344 of 688 segments (50%) had abnormal perfusion. Fifty two (15%) had moderate perfusion defects and 292 (85%) had severe perfusion defects on stress image. Of 292 severe stress defects, 53 were irreversible on redistribution and reversible on reinjection images, and 15 were reversible on redistribution and irreversible on reinjection images. Two hundred twenty four of 292 segments (76.7%) showed concordant results on stress-redistribution and stress-reinjection images. Therefore 24 hour reinjection image changed viability status from necrotic to viable in 53 segments of 292 severe stress defect (18%). However, myocardial viability was underestimated in only 5% (15/292) of severe defects by 24 hour reinjection. CONCLUSION: The 24 hour reinjection imaging is useful in the assessment of rnyocardial viability. It is more sensitive than 4 hour redistribution imaging. However, both redistribution and reinjection images are needed since they complement each other.
Complement System Proteins
;
Dipyridamole
;
Humans
;
Myocardial Infarction*
;
Myocardium
;
Perfusion
;
Tomography, Emission-Computed, Single-Photon
10.A Study on the Physical and Mental Health Factors affecting Industrial Accidents.
Myung Sun LEE ; Jaehoon ROH ; Young Hahn MOON
Korean Journal of Preventive Medicine 1989;22(3):355-367
This study examined the physical and mental health factors affecting the industrial accidents of 142 injured and 1,212 uninjured workers in the shipbuilding industry from 1986 to 1988. The results acquired from the Todai Health Index (THI) and from analysis of the health examination were as follows: 1. Among the personal characteristics of the workers, the educational level of injured workers was significantly lower than that of the uninjured workers. 2. Among the physical characteristics, vision and R hrer Index of the injured workers were lower than those of the uninjured workers, and the difference was statistically significant. On the other hand, the differences in height, weight, hearing function, hematocrit, blood pressure, urine test, and X-ray findings were not statistically significant between the injured and uninjured workers. 3. The score of the THI questionnaire on the physical and mental health of the injured workers was higher than that of the uninjured workers, and the difference was statistically significant. 4. Form the THI score, the industrial workers had complained more about mental health than physical health and there was a statistically significant relation with the industrial accidents. 5. The relative risk expressed in terms of the odds ratio was 2.9 for poorer vision, 2.7 for a lower educational level, 2.2 for a higher THI score and 1.6 for overdrinking. 6. Educational level, vision, and the THI score were selected as significant factors influencing industrial accidents based on a log-linear model. According to the results of this model by logistic analysis, the odds ratio of industrial accidents was 1.8 for a lower educational level, 1.7 for poorer vision, and 1.6 for a higher THI score. 7. By event history analysis with the dependent variable as the duration of work at the time of the industrial accident, educational level, age, R hrer Index and THI score were the statistically significant variables selected, and the hazard rate of industrial accident occurrence was 0.24 for a lower educational level, 0.92 for age, 0.99 for a lower R hrer Index and 2.72 for a higher THI score. As we have seen, educational level and THI score were the most significant factors affecting the hazard rate of industrial accidents. Vision, R hrer Index, age, and drinking behavior were also statistically significant variables influencing industrial accidents. Therefore, in order to prevent industrial accidents, it is necessary to establish a health management plan for industry which can objectively evaluate not only the physical but also the mental health of the workers. If we use this type of study as a prospective study design, we can determine the relative risk of physical and mental health factors on industrial accidents. Furthermore, it is expected that this type of study will provide workers at high risk with more precise basic data for a health management plan for industrial accident prevention.
Accidents, Occupational*
;
Blood Pressure
;
Drinking Behavior
;
Hand
;
Hearing
;
Hematocrit
;
Humans
;
Life Change Events
;
Linear Models
;
Mental Health*
;
Odds Ratio
;
Prospective Studies
;
Surveys and Questionnaires