1.Arthroscopic Meniscus Repair: A Short Term Result.
Hyoun Oh CHO ; Kyoung Duck KWAK ; Sung Do CHO ; Woo Keun JEONG
Journal of the Korean Knee Society 1997;9(2):215-219
The function of the meniscus and subsequently the importance of meniscus preservation are well known. Thirty-two patients who underwent arthroscopic meniscus repair between 1993 and 1995 were studied retrospectively. Twenty menisci were repaired using modified Henning inside-out technique and the remaining twelve meaisci, outside-in technique. The average delay in surgery was two hundred days. Follow-up was done from 1 year to 3 years (average 22.4 months). The medial meniscus was repaired in 22 cases and the lateral meniscus including two saucerized discoid meniscus in 10 cases. Fourteen patients had anterior cruciate ligament (ACL) tear and other associated knee injuries were lateral condyle fra'cture of femur in one case and lateral condyle &acture of tibia in one case. Assessment of the result was based on the evaluation form of the International Knee Documentation CommitteegKDC). Twenty-seven patients (84.3%) were normal to nearly normal. Abnormal and severely abnormal results were mainly affected by the result of treatment of ACL tear.
Anterior Cruciate Ligament
;
Femur
;
Follow-Up Studies
;
Humans
;
Knee
;
Knee Injuries
;
Menisci, Tibial
;
Retrospective Studies
;
Tibia
2.Comparison of Survival Rate between Posterior-Stabilized and Constrained Condylar Articulations in Revision Total Knee Arthroplasty:A Minimum 5-Year Follow-up Analysis
Woo-Kyoung KWAK ; Jong-Keun SEON
Clinics in Orthopedic Surgery 2023;15(4):589-596
Background:
Revision total knee arthroplasty (RTKA) is a technically demanding procedure for failed primary TKA. Posterior-stabilized (PS) and constrained condylar knee (CCK) articulations are commonly used for RTKA, but comparison of these articulations in RTKA is scarce. The aim of this study was to compare survival rates and clinical outcomes of RTKAs using PS articulation and CCK articulation.
Methods:
This study conducted a retrospective analysis of 86 RTKAs (PS, n = 41; CCK, n = 45) with a mean follow-up of 9.15 ± 2.79 years. Clinical outcomes were evaluated using the Hospital for Special Surgery score, Knee Society Score, and The Western Ontario and McMaster Universities Osteoarthritis Index at final follow-up. The survival rate of each group was analyzed by KaplanMeier survival analysis and Cox-hazard progression model.
Results:
Clinical outcomes were improved in both groups without significant difference. Twelve patients had orthopedic complications (4 in PS group and 8 in CCK group). Eight of them underwent re-RTKA (3 in PS group and 5 in CCK group). The articulation design did not influence the failure. The estimated 10-year survival rate was 92.7% in the PS group and 88.2% in the CCK group with no significant difference (p = 0.60). Also in septic failure, there was no significant difference in survival rate (92.7% in PS group and 92.5% in CCK group, p = 0.87). The hazard ratio in the PS group was not significantly different (p = 0.607).
Conclusions
In RTKA, both PS and CCK showed similar survival rates and clinical outcomes at a mean follow-up of 9.2 years. Implant articulation did not affect the outcomes when properly indicated
3.Tibial Axis-to-Talus Distance: A Clinically Reliable Measurement for Sagittal Translation of the Talus in Total Ankle Arthroplasty
Gun-Woo LEE ; Woo Kyoung KWAK ; Woo-Chul JUNG ; Keun-Bae LEE
Clinics in Orthopedic Surgery 2024;16(3):485-492
Background:
Sagittal talar translation is an important factor influencing the sagittal alignment of total ankle arthroplasty (TAA). Thus, accurate measurement of sagittal talar translation is crucial. This study proposes a simple method (tibiotalar distance [TTD]) that can quantify talar translation without being affected by the ankle and subtalar joint condition or the talar component position in patients with TAA.
Methods:
We enrolled 280 eligible patients (296 ankles) who underwent primary TAA between 2005 and 2019 and retrospectively reviewed them for sagittal talar translation. The TTD was measured for each patient on weight-bearing lateral ankle radiographs by 3 raters. In addition, we analyzed interrater and intrarater reliability for the TTD method.
Results:
We found that the TTD method could quantify the talar translation and was not affected by the preoperative condition of the ankle joint surface, subtalar joint pathologies, or the postoperative talar component position. The TTD method showed an excellent intraclass correlation coefficient (> 0.9) in all interrater and intrarater reliability analyses. In the analysis of 157 healthy, unoperated contralateral ankles, we identified that TTD showed a Gaussian distribution (p = 0.284) and a mean of 38.91 mm (normal range, 29.63–48.20 mm).
Conclusions
The TTD method is a simple and reliable method that could be applied to patients with TAA to assess the sagittal talar translation regardless of the pre-and postoperative joint condition and implantation status.
4.Comparison of the Size of the Posterior Malleolar Fragment in Trimalleolar Ankle Fractures Measured Using Lateral Plain Radiography and Three-Dimensional Computed Tomography
Gun-Woo LEE ; Dong-Min JUNG ; Woo Kyoung KWAK ; Keun-Bae LEE
Journal of the Korean Fracture Society 2022;35(3):91-96
Purpose:
This study aimed to evaluate and compare the accuracy of the size of the posterior malleolar fragment measured using lateral plain radiography and three-dimensional computed tomography (3DCT) in patients with ankle trimalleolar fractures.
Materials and Methods:
This study enrolled 80 patients (80 ankles) with ankle trimalleolar fractures and analyzed the size of the posterior malleolar fragments using plain radiography and 3D-CT. The articular involvement of the posterior malleolar fragments was measured as a percentage of the articular surface in the sagittal length of the tibial plafond using lateral plain radiography, and the articular surface area was directly measured using 3D-CT. In addition, we classified the patients into three groups based on the morphology of the posterior malleolar fracture, according to the Haraguchi classification method, and evaluated and compared the accuracy of the size of the posterior malleolar fragments.
Results:
The mean articular involvement of the posterior malleolar fragments on plain radiography was 27.6% (range, 6.0%-53.1%), which was significantly higher than the mean of 21.9% (range, 4.7%-47.1%) measured using 3D-CT (p=0.004). In the analysis, according to the fracture morphology, the mean difference between the two methods was the largest for type I fractures at 9.1% (range, 1.8%-19.5%) and the smallest for type II fractures at 1.1% (range, –7.7% to 8.8%).
Conclusion
The articular involvement of posterior malleolar fragments measured using plain radiography showed low accuracy and significantly higher values than the actual articular involvement. Therefore, careful evaluation using 3D-CT is crucial for accurate analysis and optimal treatment in patients with ankle trimalleolar fractures.
5.A comparison of Dietary Habits and Influencing Factors for Vegetable Preferences of Adolescents in Gyeongnam Province.
Suhyang KWAK ; Taejung WOO ; Kyoung Ae LEE ; Kyung Hea LEE
Korean Journal of Community Nutrition 2015;20(4):259-272
OBJECTIVES: A higher consumption of vegetables is emphasized as the core component of most dietary guidelines. Thus, this research investigated the dietary habits and influencing factors of vegetable preferences of adolescents. METHODS: This study was conducted by using a self-administered questionnaire. 400 students from two high schools in Gyeongnam (193 boys, 207 girls) participated in the survey. The questionnaire consisted of the following variables: dietary habit, dietary action guide and factors based on Social Cognitive Theory (SCT). RESULTS: The dietary habits of subjects showed significant differences depending on whether they prefer vegetables or not. The subjects in the group who liked vegetables had better dietary habits than the other group. Also, the study determined that the most important reason for liking or disliking vegetables is due to the taste. In the practice of dietary guidelines, the group of subjects who liked vegetables followed dietary guidelines more closely than the other group (p < 0.001). When the factors based on SCT were analyzed, personal factors showed significant differences between the groups: outcome expectation (p < 0.001), self-efficacy (p < 0.001) and affective attitude (p < 0.001). Personal factors and rated vegetable preferences showed a significant correlation in multiple regression analysis (F=42.015, p < 0.001). CONCLUSIONS: These results showed that vegetable preference is associated with a key point of desirable dietary habits among subjects. In order to increase vegetable preference or consumption, it is important to focus on strengthening not only self-efficacy of students, but also affective attitude of vegetable.
Adolescent*
;
Food Habits*
;
Humans
;
Nutrition Policy
;
Vegetables*
6.Prediction Formulas of Pulmonary Function Parameters Derived from the Forced Expiratory Spirogram for Healthy Nonsmoking and Smoking Adults and Effect of Smoking on Pulmonary Function Parameters.
Won Kyoung CHO ; Eun Ok KIM ; Seung Jae MYUNG ; Seung Min KWAK ; Youn Suck KOH ; Woo Sung KIM ; Won Dong KIM ; Moo Song LEE
Tuberculosis and Respiratory Diseases 1994;41(5):521-530
BACKGROUND: The past. studies on prediction formulas of pulmonary function parameters in healthy nonsmoking Korean adults have been performed in relatively small number of subjects and the reported results were restricted on a few parameters. Also there was no systematic investigation into the effect of smoking on pulmonary function parameters in smokers who have no respiratory symptoms. Therefore we attempted to establish prediction formulas of pulmonary function parameters and examined the effect of smoking on pulmonary function parameters. METHODS: We analyzed the result of parameters derived from the forced expiratory spirogram in 1,067 nonsmoking subjects from June in 1990 to December in 1991. They consisted of 306 males and 761 females and had neither respiratory symptoms nor history of respiratory disease. We derived prediction formulas by multiple linear regression method from their age, heights, and weights in each sex. To examine the effect of smoking on pulmonary function parameters, we classified 383 smoking men into three groups according to the past amount of smoking as follows : i.e. group of smokers who have smoked below 10 pack-years, 10-20 pack-years and above 20 pack-years. Regarding each group of past smoking as an independent dummy variable, we analyzed pulmonary function parameters including nonsmoking men as a baseline by multiple linear regression. We evaluated the smoking effect on pulmonary function parameters according to estimated p-value. RESULT: 1) Prediction formulas for pulmonary function parameters in each sex were derived. 2) The past smoking less than 10 pack-years does not give any effect on pulmonary function parameters. The past smoking of 10~20 pack-years showed significant negative correlation with FEV1/FVC and FEF 25~75%, and the smoking above 20 pack years showed negative correlation with FEV1 and FEV1/FVC. CONCLUSION: We have got prediction formulas of pulmonary function parameters which is driven from forced expiratory spirogram in nonsmoking Korean adults by multiple linear regression from age, heights and weights of subjects. The past smoking more than 10 pack-years showed negative correlation with some pulmonary function parameters of airflow obstruction.
Adult*
;
Female
;
Humans
;
Linear Models
;
Male
;
Smoke*
;
Smoking*
;
Weights and Measures
7.Paroxysmal Hypertension during Cardiopulmonary Bypass in a Patient with Pheochromocytoma Undergoing Coronary Artery Bypass Grafting.
Young Jun OH ; Eun Kyoung KIM ; Choon Soo LEE ; Won Chul KANG ; Young Lan KWAK ; Yong Woo HONG
Korean Journal of Anesthesiology 2001;40(1):106-110
A 39 year old man suffering from pheochromocytoma and coronay artery obstruction diseases was scheduled for coronary artery bypass graft surgery before an adrenalectomy. General anesthesia was induced with fentanyl and midazolam and maintained with intermittent administration of fentanyl and low concentraion of isoflurane. At 5 minutes after commencement of cardiopulmonary bypass (CPB), the mean arterial pressure suddenly elevated to 150 mmHg. Sodium nitroprusside and labetalol were administered rapidly, however, mean arterial pressure could not be lowered below 100 mmHg. After release of aortic cross clamp, the electrocardiography showed tachycardia (150 beats/min) with wide QRS and systolic arterial pressure elevated to 180 mmHg. Antiarrhythmic drugs, inotropic and antiischemic drugs were administered. Thereafter tachycardia was disappeared and systolic arterial pressure was lowered below 150 mmHg. We observed the paroxysmal hypertension and tachycardia during CPB that is considered to be attributed to the presence of pheochromocytoma. Therefore we suggest that continuous thoracic epidural anesthesia and pulsatile perfusion during CPB could be helpful in a patient with pheochromocytoma undergoing coronary artery bypass grafting.
Adrenalectomy
;
Adult
;
Anesthesia, Epidural
;
Anesthesia, General
;
Anti-Arrhythmia Agents
;
Arterial Pressure
;
Arteries
;
Cardiopulmonary Bypass*
;
Coronary Artery Bypass*
;
Coronary Vessels*
;
Electrocardiography
;
Fentanyl
;
Humans
;
Hypertension*
;
Isoflurane
;
Labetalol
;
Midazolam
;
Nitroprusside
;
Pheochromocytoma*
;
Pulsatile Flow
;
Tachycardia
;
Transplants
8.Primary Cryptococcal Tenosynovitis in a Patient with Rheumatoid Arthritis.
A Young SEO ; Seung Woo HAN ; Ki Tae KWON ; Eun Kyoung KWAK ; Mi Jung LEE ; Sung Hoon KANG
Infection and Chemotherapy 2012;44(1):22-25
Here, we report a case of primary cryptococcal tenosynovitis and arthritis caused by worsened cellulitis in a patient with rheumatoid arthritis (RA) who had been taking methotrexate and leflunomide. The patient, injured during the soybean harvest, failed to respond to empirical antibiotic therapy for presumed bacterial cellulitis on the dorsum of the right hand. An operative procedure was performed. Cryptococcocal tenosynovitis was diagnosed upon histopathological examination of the lesion. Treatment with 400 mg of fluconazole daily for 3 months led to the complete disappearance of skin lesions, with slight limitation of finger extension. The patient was examined continuously for 2 years, and there was no evidence of relapse or dissemination to other organs. This case indicates that primary cryptococcal skin and soft tissue infections must be included in the differential diagnoses of antibiotics-refractory soft tissue infections, especially in immunocompromised patients.
Arthritis
;
Arthritis, Rheumatoid
;
Cellulitis
;
Cryptococcus
;
Diagnosis, Differential
;
Fingers
;
Fluconazole
;
Hand
;
Humans
;
Immunocompromised Host
;
Isoxazoles
;
Methotrexate
;
Recurrence
;
Skin
;
Soft Tissue Infections
;
Soybeans
;
Surgical Procedures, Operative
;
Tenosynovitis
9.The Properties of Antibiotic and NSAIDs Administration Before Extract of the Impacted Mandibular Third Molar.
Yong Kab KIL ; Hee In KANG ; Kyoung Soo KIM ; Jae Seong KIM ; Myung Ho KWAK ; Hyun Soo SEO ; Soon Min HONG ; Jun Woo PARK
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 2009;31(6):505-509
10.Prevalence of antibodies to Bartonella henselae and Bartonella quintana in Korean Patients with Lymphadenopathy.
Min Byoung CHAE ; Ji Young LEE ; Yee Gyung KWAK ; Sung Hak PARK ; Hee Jung LIM ; Sang Woo PARK ; Moon Hyun CHUNG ; Mee Kyoung KIM ; Jae Seung KANG
Korean Journal of Infectious Diseases 2002;34(5):305-310
BACKGROUND: Cat scratch disease (CSD) manifests as a self-limiting, regional lymphadenopathy, fever and constitutional symptoms following a cat scratch or close contact with cats. Bartonella henselae is a causative agent of CSD that is globally distributed. In Korea there are no case report of CSD and no reports on the seroprevalence of Bartonella henselae in patients with suspected CSD. In this study the prevalence of antibodies to Bartonella in patients with lymphadenopathies was evaluated. METHODS: We evaluated serological responses of 31 patients (8 male, 23 female) with regional lymphadenopathies. The age of the patients ranged from 6 to 76 years old (mean+/-S.D., 30.6+/-14.3 years). Final diagnoses on the lymphadenopathies were tuberculous lymphadenopathy, Kikuchi's disease, Kawasaki's disease, and viral infection, but considerable cases remained undiagnosed. All sera were examined using MRL Diagnostics Bartonella IgG indirect immunofluorescent antibody (IFA) test kits (MRL Diagnostics, Cypress, California, USA) according to the manufac-turer's instructions. RESULTS: Of the 31 patients, 21 (67.7%) patients showed positive titers of immunoglobulin G (IgG) to B. henselae (1 : 64 or higher). Twelve (38.7%) had IgG titers of 1 : 128 and four (12.9%) had titers of 1 : 256. Among these patients, three patients had a history of close contact with a cat or cat scratch. Twenty patients (64.5%) showed positive reactions against B. quintana. CONCLUSION: This study revealed possible patients with cat scratch disease, but, unlike other countries, Bartonella seropositivity was not closely associated with cat contact. The further studies should be performed in a large number of patients including a control group and be accompanied with culture or polymerase chain reaction of extirpated lymph node.
Aged
;
Animals
;
Antibodies*
;
Bartonella henselae*
;
Bartonella quintana*
;
Bartonella*
;
California
;
Cat-Scratch Disease
;
Cats
;
Cupressus
;
Diagnosis
;
Fever
;
Histiocytic Necrotizing Lymphadenitis
;
Humans
;
Immunoglobulin G
;
Korea
;
Lymph Nodes
;
Lymphatic Diseases*
;
Male
;
Polymerase Chain Reaction
;
Prevalence*
;
Seroepidemiologic Studies