The clinical observation was performed on 32 patients of acetabular fracture, who had been admitted and treated at Department of Orthopedic Surgery, College of Medicine, Busan National University from January 1980 to December 1983. The results obtained were as follows. 1. The prevalent age ranged from 20 to 50 years, which comprised 71.9% and the ratio between males and females was 2.6: l. 2. The causes of injury were 16 cases of traffic accident, which comprised the highest incidence, 10 falling down and 6 direct blow. 3. According to Letournels classification, 21 cases (65.6%) were simple fractures, llcases(34.4%) were associated fractures. 4. Total patients associated injuries of another part of body were 24 cases#{75.0%) among them pelvic bone fracture was the most common fractured case and cerebral concussion was the most common soft tissue injury. 5. 2 types of treatment were performed, one was 18 conservative treatment and the other was 14 surgical treatment which was performed by open reduction and internal fixation. 6. The satisfactory result of conservative treatment was 61.6% and surgical treatment was 85.7. 7. The complications were 7 cases(21.9) of degenerative arthritis, ectopic ossification in 2cases (6.3%), avascular necrosis, superficial infection, and secondary displacement of fracture site in 1 case(3.1%) respectively. 8. The anatomical reduction and internal fixation was an important factor in treatment of acetabular fracture, especially in severe displaced articular fracture.
Accidental Falls ; Accidents, Traffic ; Acetabulum ; Brain Concussion ; Busan ; Classification ; Female ; Humans ; Incidence ; Male ; Necrosis ; Orthopedics ; Ossification, Heterotopic ; Osteoarthritis ; Pelvic Bones ; Soft Tissue Injuries

BACKGROUND AND OBJECTIVES:Traditionally, down beat nystagmus is regarded as a sign of central nervous system dysfunction. But, several years has passed since Herdman et al reported the down beat nystagmus developed during treatment maneuvers for posterior semicircular canal benign paroxysmal positional vertigo(BPPV). We undertook this study to evaluate the character and clinical analysis of the positional or positioning down beat nystagmus, to discuss the clinical significance of positional or positioning down beat nystagmus as a diagnostic criteria of superior semicircular canal BPPV, and to propose the new treatment method. MATERIALS AND METHOD:From November 1999 to March 2004, we sampled the 103 patients with positional or positioning down beat nystagmus. Of these patients, we selected 16 patients except for the patients with central nervous system dysfunction, nonspecific or artifact result, idiopathic origin. RESULTS:All of 16 patients had no sign and radiologic result of central nervous system disorder. 10 patients was reported or suspected the diagnosis of posterior semicircular canal BPPV. Fatigability was reported in 9 patients and reversibility was reported in 1 patient. Average latency was checked less than 2 seconds. CONCLUSION:Although the diagnostic criteria of superior semicircular canal BPPV that we reported was not controversial, we expect that this criteria is useful in diagnosis for patients with atypical positional or positioning down beat nystagmus. And the new treatment method that we reported will has the better results than previous method.
Artifacts ; Central Nervous System ; Diagnosis ; Humans ; Semicircular Canals ; Vertigo*

STATEMENT OF PROBLEM: Successful osseointegration of endosseous threaded implants is dependent on many factors. These may include the surface characteristics and gross geometry of implants, the quality and quantity of bone where implants are placed, and the magnitude and direction of stress in functional occlusion. Therefore clinical quantitative measurement of primary stability at placement and functional state of implant may play a role in prediction of possible clinical symptoms and the renovation of implant geometry, types and surface characteristic according to each patients conditions. Ultimately, it may increase success rate of implants. PURPOSE: Many available non-invasive techniques used for the clinical measurement of implant stability and osseointegration include percussion, radiography, the Periotest., Dental Fine Tester. and so on. There is, however, relatively little research undertaken to standardize quantitative measurement of stability of implant and osseointegration due to the various clinical applications performed by each individual operator. Therefore, in order to develop non-invasive experimental method to measure stability of implant quantitatively, the resonance frequency analyzer to measure the natural frequency of specific substance was developed in the procedure of this study. MATERIAL AND METHOD: To test the stability of the resonance frequency analyzer developed in this study, following methods and materials were used: 1) In-vitro study: the implant was placed in both epoxy resin of which physical properties are similar to the bone stiffness of human and fresh cow rib bone specimen. Then the resonance frequency values of them were measured and analyzed. In an attempt to test the reliability of the data gathered with the resonance frequency analyzer, comparative analysis with the data from the Periotest was conducted. 2) In-vivo study: the implants were inserted into the tibiae of 10 New Zealand rabbits and the resonance frequency value of them with connected abutments at healing time are measured immediately after insertion and gauged every 4 weeks for 16 weeks. RESULTS: Results from these studies were such as follows: The same length implants placed in Hot Melt showed the repetitive resonance frequency values. As the length of abutment increased, the resonance frequency value changed significantly (p<0.01). As the thickness of transducer increased in order of 0.5, 1.0 and 2.0 mm, the resonance frequency value significantly increased (p<0.05). The implants placed in PL-2 and epoxy resin with different exposure degree resulted in the increase of resonance frequency value as the exposure degree of implants and the length of abutment decreased. In comparative experiment based on physical properties, as the thickness of transducer increased, the resonance frequency value increased significantly(p<0.01). As the stiffness of substances where implants were placed increased, and the effective length of implants decreased, the resonance frequencies value increased significantly (p<0.05). In the experiment with cow rib bone specimen, the increase of the length of abutment resulted in significant difference between the results from resonance frequency analyzer and the Periotest.. There was no difference with significant meaning in the comparison based on the direction of measurement between the resonance frequency value and the Periotest. value (p<0.05). In-vivo experiment resulted in repetitive patternes of resonance frequency. As the time elapsed, the resonance frequency value increased significantly with the exception of 4th and 8th week (p<0.05). CONCLUSION: The development of resonance frequency analyzer is an attempt to standardize the quantitative measurement of stability of implant and osseointegration and compensate for the reliability of data from other non-invasive measuring devices. It is considered that further research is needed to improve the efficiency of clinical application of resonance frequency analyzer. In addition, further investigation is warranted on the standardized quantitative analysis of the stability of implant.
Humans ; Osseointegration ; Percussion ; Rabbits ; Radiography ; Ribs ; Tibia ; Transducers

Objectives: The prevalence of cumulative trauma disorders of upper extremities mons watch assembly workers in small-scaled industry was studied. Methods: In 83 workers at five watch assembly factories, symptoms and psychosocial questionnaire, ergonomic Interview, physical examination were conducted. Results: Prevalence of self-reported symptoms was 54.2% and neck 34.9%, wrist/hand 31.3%, shoulder 30.1%, elbow/arm 18.0% by anatomical site. Prevalence of cumulative trauma disorders was 45.8%. Most common disease was myofascial pain syndrome (31.3%). The other diseases were De Quervain disease (9.6%), tenosynovitis/tendinitis at wrist/hand (9.6%), bicipital tendinitis(6.0%), fat. epicondylitis(4.8%), meIn. epicondylitis(2.4%), and cervical disc disease(2.4%). As result of ergonomic interview, repetitiveness was 79(98.8%). There were no differences in the prevalence of self-reported symptoms and cumulative trauma disorders for age, sex, marital status, duration of work In the study, The significant factors of cumulative trauma disorders were occupational task and psychosocial stress in the study. The prevalence of cumulative trauma disorders in high strain group was hlgher (68.4%) than other three groups. The prevalence of self-reported symptoms and cumulative trauma disorders in assembly task was higher (70.0%, 64.0%) than other two tasks. Conclusions: Prevalence of self-reported symptoms was 54.2%, prevalence of cumulative trauma disorders was 45.8% in watch assembly workers. In this study, factor related to self-reported symptoms was occupational task and factors relaxed to cumulative trauma disorders were occupational task and psychosocial stress. This results suggest that differences of ergonomics and environment in occupational task cause differences of prevalence of self-reported symptoms and cumulatlve trauma disorders.
Cumulative Trauma Disorders* ; De Quervain Disease ; Human Engineering ; Marital Status ; Myofascial Pain Syndromes ; Neck ; Physical Examination ; Prevalence* ; Questionnaires ; Shoulder ; Upper Extremity*

PURPOSE: The purpose of this study was to verify the usefulness of each diagnostic tool by comparing physical examination, MRI, and EMG findings with operative findings in multilevel cervical radiculopathy. MATERIALS AND METHODS: Thirty-six (n=36) multilevel cervical radiculopathy patients with a total of 180 levels were included in this study. The findings of preoperative diagnostic tests, including physical examination, EMG and MRI, were analyzed for sensitivity, specificity, positive predictive value and negative predictive value by comparing with the operative findings, which was regarded as the gold standard. Correlation between each diagnostic tools were also analyzed. RESULTS: The sensitivity, specificity, positive and negative predictive values of each item in sensory deficiency were 37%, 86%, 60%, and 72%, motor weakness 62%, 88%, 78%, and 78%, EMG 47%, 87%, 70%, and 71%, and MRI 91%, 86%, 81%, and 93% respectively. Each element showed statistically significant correlation with each diagnostic modality. Correlation between the operative findings and MRI was highest, at 0.766. CONCLUSION: MRI was the most useful diagnostic modality in multi-level cervical radiculopathy. EMG showed relatively low sensitivity and should be considered in conjunction with its clinical application.
Diagnostic Tests, Routine ; Humans ; Physical Examination ; Radiculopathy ; Sensitivity and Specificity

No abstract available.
Polymerase Chain Reaction*

No abstract available.
Giant Cell Tumors* ; Giant Cells* ; Ribs*

Leflunomide is a disease-modifying antirheumatic drug that has been available in Korea since 2003. Leflunomide induced interstitial pneumonitis has been reported as an adverse effect in other countries but not in Korea. A 57-year-old woman was treated with leflunomide since she had been resistant to methotrexate, hydroxychloroquine and sulfasalazine. She developed high fever, dyspnea, and non-productive cough 3 months after the administration of leflunomide. She was diagnosed leflunomide-induced interstitial pneumonitis based on history, physical, laboratory, radiologic and pathologic findings. The patient was treated by prednisolone 1 mg/kg/day with cholestyramine 24 g/day, resulting in dramatic improvement. Here we report a case of leflunomide induced pneumonitis treated successfully with high dose steroid.
Arthritis, Rheumatoid ; Cholestyramine Resin ; Cough ; Dyspnea ; Female ; Fever ; Humans ; Hydroxychloroquine ; Korea ; Lung Diseases, Interstitial* ; Methotrexate ; Middle Aged ; Pneumonia ; Prednisolone ; Sulfasalazine

BACKGROUND: Lipoprotein(a)[Lp(a)], an independent risk factor for athrosclerosis, consist of low density lipoprotein like particle and specific glycoprotein, apolipoprotein(a). The levels of Lp(a) are mainly determined by the genetic pleomorphism of apolipoprotein(a) and has been though not to be influenced by age, sex and other biochemical parameters. Recent reports have shown that the concentrations of Lp(a) are correlated with age in women. The purpose of this study was to invastigate the association of Lp(a) concentration with sex and age. METHODS: The concentrations of Lp(a) were measured in 3,707 women and 389 men, free of diseases and medications known to affect the lipid levels. Plasma Lp(a) concentration were measured by commercial radioimmunoassay kit and other lipid profiles by conventional method. RESULTS: In female, median Lp(a) concentration increased with age till the early sixth decade (P=.0000) and then decreased. If peri- and postmenopausal women were excluded in the fifth decades, the relation between age and Lp(a) disappeared. In male, Lp(a) concentration were not associated with age. Median Lp(a) concentrations were higher in females than in males in the fifth(p=.0039) and the sixth decades(p=.0007), The difference became negligible after the exclusion of peri- and postmenopausal woman in the fifth decade. CONCLUSION: The concentrations of Lp(a) were corrected with age only in female. Females had higher levels than males in the fifth and the sixth decades. The relations are thought to be nither due to aging process nor sex but due to postmenopausal increase of Lp(a).
Aging ; Apoprotein(a) ; Female ; Glycoproteins ; Humans ; Lipoprotein(a)* ; Lipoproteins ; Male ; Menopause ; Plasma ; Radioimmunoassay ; Risk Factors

BACKGROUND: Lipoprotein(a)[Lp(a)], an independent risk factor for athrosclerosis, consist of low density lipoprotein like particle and specific glycoprotein, apolipoprotein(a). The levels of Lp(a) are mainly determined by the genetic pleomorphism of apolipoprotein(a) and has been though not to be influenced by age, sex and other biochemical parameters. Recent reports have shown that the concentrations of Lp(a) are correlated with age in women. The purpose of this study was to invastigate the association of Lp(a) concentration with sex and age. METHODS: The concentrations of Lp(a) were measured in 3,707 women and 389 men, free of diseases and medications known to affect the lipid levels. Plasma Lp(a) concentration were measured by commercial radioimmunoassay kit and other lipid profiles by conventional method. RESULTS: In female, median Lp(a) concentration increased with age till the early sixth decade (P=.0000) and then decreased. If peri- and postmenopausal women were excluded in the fifth decades, the relation between age and Lp(a) disappeared. In male, Lp(a) concentration were not associated with age. Median Lp(a) concentrations were higher in females than in males in the fifth(p=.0039) and the sixth decades(p=.0007), The difference became negligible after the exclusion of peri- and postmenopausal woman in the fifth decade. CONCLUSION: The concentrations of Lp(a) were corrected with age only in female. Females had higher levels than males in the fifth and the sixth decades. The relations are thought to be nither due to aging process nor sex but due to postmenopausal increase of Lp(a).
Aging ; Apoprotein(a) ; Female ; Glycoproteins ; Humans ; Lipoprotein(a)* ; Lipoproteins ; Male ; Menopause ; Plasma ; Radioimmunoassay ; Risk Factors