1.Revision Total Knee Arthroplasty.
Dae Kyung BAE ; Sang Hoon LEE ; Jae Young PARK
The Journal of the Korean Orthopaedic Association 1997;32(5):1324-1333
As the number of primary total knee arthroplasties (TKA) have increased, there has been a corresponding increase in the number of revision TKAs. The purpose of the this study is to report on the follow-up results of 50 revision TKAs, and to assess their clinical outcome. From January 1990 to December 1995, 50 revision TKAs were perfomed in 43 patients, by one surgeon. Mean follow up time was 2.5 years (range, 1 to 6 years). The mean interval from the initial arthroplasty to revision was 4.6 years (range, 3 months-12.6 years). The causes of the revision were wear of polyethylene in 29 joints (58%), infection in seven (14%) and aseptic loosening in six. The revision components were fixed with cement in all cases. Additional fixations were obtained with modular stems (femoral 11 cases, tibial 13 cases), 9 tibial metal wedges, 7 femoral augmentations, and 12 allografts. The Knee Rating Scale of Hospital for Special Surgery was used for clinical assessment. The mean flexion contracture and further flexion of knee joint were 8.8degrees (range, 0-70degrees), 98.5degrees (range, 5-135degrees) preoperatively, and 3.7degrees (range, 0-15degrees), 112degrees (range, 75-135degrees) postoperatively. The Knee Rating Scale improved from 66.5 points (range, 15-83) to 87.5 points (range, 79-98). There were two cases of complications, dislocation of patella and superficial wound problem in each case. In conclusion, wear was the most common cause of failure of primary TKA. The results of revision in infected TKA were less favorable than that of wear and loosening. The prosthetic design and thickness of polyethylene were the most important factors related to wear. The tibial component of PCA and patellar component of Miller-Galante had significant wear problems.
Allografts
;
Arthroplasty*
;
Contracture
;
Dislocations
;
Follow-Up Studies
;
Humans
;
Joints
;
Knee Joint
;
Knee*
;
Passive Cutaneous Anaphylaxis
;
Patella
;
Polyethylene
;
Wounds and Injuries
2.Investigation of the Influence of Low Birth Weight on the Severity of Asthma in Prealdolescent Children and Aldolescence.
Hoon JEUNG ; Heung Dae KIM ; Yun Jin LEE ; Kyun Woo LEE
Pediatric Allergy and Respiratory Disease 2006;16(1):38-46
PURPOSE: Over the past several decades, the survival rates of low birth weight(LBW; birth weight <2,500 g) infants have been improving. Many of these infants have had bronchial asthma(BA) at childhood and aldolescence. The aim of this study is to investigate whether LBW influenced the severity of BA in prealdolescent children and aldolescence by a retrospective case control study. METHODS: 15 LBW children(1,500 g
Adolescent
;
Asthma*
;
Birth Weight
;
Case-Control Studies
;
Child*
;
Humans
;
Hypersensitivity
;
Immunoglobulin E
;
Infant
;
Infant, Low Birth Weight*
;
Infant, Newborn
;
Methacholine Chloride
;
Parturition
;
Reference Values
;
Retrospective Studies
;
Risk Factors
;
Survival Rate
3.Left Atrial Enlargement: Echocardiographic Assessment of Electrocardiographic Criteria.
Uoo Eak SHIM ; Seung Hoon LEE ; Nam Joon LEE ; Dae Ha KIM
Korean Circulation Journal 1982;12(1):139-143
A comparison betwen electrocardiographic and echocardiographic criteria of Lt. atrial enlargement was made in 40 cases who demonstrated left atrial enlargement either electrocardiographically or echocardiographically. 1) There were 20 cases with Lt. atrial enlargement by electrocardiographic criteria and echocardiographic criteria and 30 cases by echocardiographic criteria 2) Of 40 subjects, 19 cases were found to satisfy both electrocardiographic and echocardiographic critera of Lt. atrial enlargement at the same time. 3) 10 cases were consistent only with electrocardiographic criteria of Lt. atrial enlargement, but not with echocardiographic criteria 4) On the other hand, 11 cases of Lt. atrial enlargement consistent with echocardiographic criteria did not meet the electrocardiographic criteria 5) The respective predictive indices of electrocardiographic and echocardiographic criteria of Lt. atrial enlargement were: Electrocardiographic criteria; positive: 65.52%, Negative: 79.9%. Echocardiographic criteria; Positive: 63.3%, Negative: 89.13%.
Echocardiography*
;
Electrocardiography*
;
Hand
4.A comparison of ritodrine hydrochloride(Yutopar@) and nifedipine in the treatment of preterm labor.
Jeong Seung LEE ; Jang Heub KIM ; Do Kang KIM ; Dae Hoon KIM ; Hun Young LEE
Korean Journal of Obstetrics and Gynecology 1991;34(3):340-347
No abstract available.
Female
;
Nifedipine*
;
Obstetric Labor, Premature*
;
Pregnancy
;
Ritodrine*
5.Usefulness of Treadmill Exercise Test on Diabetes Mellitus.
Tae Hoon LEE ; Yoon Ho LEE ; Seung Tae CHUNG ; Eung Jin KIM ; Dae Ha KIM
Korean Circulation Journal 1985;15(2):215-223
We studied 193 Diabetics without any symptoms of coronary artery disease and 39 Normal healthy subjects as Control group, using treadmill exercise test and obtained following results. 1) The positive rate was significantly higher in Diabetics(19.4% in Normal ECG groups and 25.4% in total Diabetics)than Control groups(5.1%)(0.01
0.05). 5) There was no difference in HbAIC, Total cholesterol and Triglyceride between positive and negative groups(P>0.05). In summary, with exercise test, the positive rate was higher in Diabetics than in Normal control groups and it seemed to be treadmill exercise test is a useful screening method for evaluation of coronary artery disease as well as for assesment of treatment and follow up care.
Blood Pressure
;
Cholesterol
;
Coronary Artery Disease
;
Diabetes Mellitus*
;
Electrocardiography
;
Equidae
;
Exercise Test*
;
Heart Rate
;
Mass Screening
;
Triglycerides
6.The Comparative Assessment of Filtering Bleb by Timing of subconjunctival Injection of Mitomycin-C in Glaucoma Filtering Surgery.
Dae Won LEE ; Moo Hwan CHANG ; Jong Hoon LEE
Journal of the Korean Ophthalmological Society 1999;40(2):513-522
In glaucoma filtering surgery, we conducted subconjunctival injection of Mitomycin-C(MMC) 12 hours before and after surgery, and examined histologic findings of the filtering bleb, and condition of the anterior chamber which ensued after the injection. We divided 15 full-grown rabbits into three groups, and for each group, administered subconjunctivally 0.1cc of 0.002%, 0.004%, and 0.008% MMC, respectively. The subconjunctival injection of MMC before surgery was given to the right eye and post-surgical injection to the left, and we examined the results 1, 2, 4, 7, and 14 days after the administration.In conclusion, subconjunctival injection of MMC 12 hours before glaucoma filtering surgery is shown to be more effective than the injection after the surgery.
Anterior Chamber
;
Blister*
;
Filtering Surgery*
;
Glaucoma*
;
Mitomycin*
;
Rabbits
7.Non Blood Transfusion Limb Salvage Operation in the Distal Femur Osteosarcoma Patient: A Case Report.
Jong Hoon PARK ; Si Young PARK ; Dae Hee LEE ; Yeok Gu HWANG ; Hyun Min LEE
The Journal of the Korean Bone and Joint Tumor Society 2014;20(1):36-40
Limb salvage operations for osteosarcoma of the extremity usually consist of wide excision and skeletal reconstruction. Most osteosarcoma patients are anemic prior to the surgery as majority of them undergo preoperative neo-adjuvant chemotherapy; thus, it is necessary to treat anemia before and after the surgery since limb salvage operation tends to accompany significant blood loss. Despite the fact that blood transfusion has bad influence on prognosis, complication, and postoperative outcome of cancer patients, it is still considered as a standard management to fix anemia for limb salvage operations. We would like to present a case report in which the authors succeeded in performing limb salvage operations on patients with distal femur osteosarcoma without transfusion.
Anemia
;
Blood Transfusion*
;
Drug Therapy
;
Extremities
;
Femur*
;
Humans
;
Limb Salvage*
;
Osteosarcoma*
;
Prognosis
8.The effect of bone cement in the treatment of giant cell tumor.
Han Koo LEE ; Sang Hoon LEE ; Dae Geun JEON ; Young Sik MIN
The Journal of the Korean Orthopaedic Association 1992;27(1):262-269
No abstract available.
Giant Cell Tumors*
;
Giant Cells*
9.Biomechanical Study about Difference between Stainless Steel and Titanium Dynamic Hip Screws in Peritrochanteric Fractures of the Femur.
Kwang Suk LEE ; In Hee LEE ; Kyung Jo WOO ; Jong Hoon PARK ; Dae Gon WIE
The Journal of the Korean Orthopaedic Association 1997;32(4):929-936
Peritrochanteric fractures are common in the elderly, and the mortaliy and morbidity rates after conservative treatment of the fractures are usually high. In these fractures the internal fixation now allows the patient more rapid functional gain. It has been known that for stabilization of fracture the sliding hip screw is superior to other fixation devices. To investigate the biomechanical difference between two different materials of dynamic hip screw, eight intertrochateric and eight subtrochanteric femur fractures were artificially induced in human cadavers. Two femurs were used as the control. In eight cadaver intertrochanteric fractures (Group I), four of them were treated with stainless steel compression hip screw and four were treated with titanium compression hip screw. Eight cadaver subtrochanteric fractures (Group II) were divided by two groups as equal number. One group was treated with stainless steel compression hip screw and the other was treated with titanium compression hip screw with plate. Each femur was secured in a fixation device of the Instron and loaded in a vertical compression. Collapse or fixation failure during vertical compression were observed and recorded continuously in slow speed with deformation rate of 3mm/min. Biomechanical analysis of maximal loading force in the control and experimental two groups were performed. The results were as follows; 1. The mean maximal loading force was 625 kp in control group. 2. The mean maximal loading force in each 4 intertrochanteric fractures fixed with stainless steel DHS (dynamic hip screw) and plate was 92.59 kp, and with titanium DHS and plate was 71.57 kp. There was no statistical significance between stainless steel DHS and plate fixation and titanium DHS and plate fixation. (p>0.05) 3. The mean maximal loading force in each 4 subtrochanteric fractures fixed with stainless DHS and plate was 140.12 kp, and with titanium DHS with plate was 169.4 kp. There was no statistical significance between stainless steel DHS and plate fixation and titanium DHS and plate fixation. (p>0.05) 4. The breakage of metal implant was not occurred at the maximal loading force 600 kp in both group. There was no difference of fixability and stability according to the metal quality, as the results of the experiment of compression loading force to the stainless steel DHS and titanium DHS fixation on intertrochanteric and subtrochanteric fractures in cadaverous femurs.
Aged
;
Cadaver
;
Femur*
;
Hip Fractures
;
Hip*
;
Humans
;
Internal Fixators
;
Stainless Steel*
;
Titanium*
10.Experimental animal model for preeclampsia by the infusion of nitric oxide synthase inhibitor and reverse of preeclampsia by high dose L-arginine infusion.
Hyung Gun LEE ; Jong Kun LEE ; Young Ok LEW ; Dae Young CHUNG ; Dong Choon PARK ; Jae Hoon KIM ; Jong Chul SHIN ; Dae Hoon KIM ; Soo Pyung KIM
Korean Journal of Obstetrics and Gynecology 1999;42(12):2768-2775
OBJECTIVES: To learn which inhibition of nitric oxide synthase with L-nitro arginine methylester(L-NAME) induces a preeclampsia-like syndrome in pregnant rabbits and high dose of L-arginine reverse the adverse changes induced by nitric oxide synthesis inhibition in pregnant rabbits. MTERIAL AND METHOD: Twenty Newzealand rabbits with 22-days of gestation were injected subcutaneously with 400mg of L-NAME for 7days and 100mg/kg L-arginine was also given intravenously 10 of 20 L-NAME injected pregnant rabbits. They are compared with the control group in which same volume of saline was subcutaneously injected to 5 rabbits with same condition. They were anesthesized by ketamine 50 mg/kg and roupum 2 mg/kg intramuscularly. Cutdown of femoral artery was performed and 22 gauge angioneedle was inserted. On manometer,three way catheter was connected, zeroed with saline, and blood pressure was read. Blood samples were taken from the vein of ear and checked for count of blood cells and bood chemistry (BUN/Cr, GOT/GPT, LDH, Uric acid). Urine protein was measured with nelaton catheterized urine. We injected drugs for 7 days begining on 22 days after mating and performed cesarian section to deliver fetus. To observe their effects on organs, lung, liver, placenta and kidney were taken and fixed with formalin. The sliced kidney tissue in thickness of 1 mm, was fixed with glutaraldehyde for electron microscopy and stored at 4degree C. Special staining was done for closed observation of pattern changes. For statistical analysis, mean+/-SEM was used. The control and experimental groups were compared by unpaired t-test and the differences were significant if probability level is less than 0.05(<0.05). RESULT: Mean blood pressure(MAP) in the experimental group I was significantly high compared to the control group(P<0.05). There was no significant differences in MAP between experimental group II and control group. Urine Protein, BUN, Cr, GOT/GPT, LDH, platelet count in the experimental group I was significantly high(p<0.05) compared to the control group. There was no significant difference between experimental group II and control group. In light microscopic examination, lung, liver, kidney, placenta showed specific finding in experimental group I. Misconstructive of glomerulus in the experimental kidney was well preserved under EM examination. Interstitium of kidney was widened by increase of mesangial matrix. Mild effacement of foot process and cytoplasm of proximal tubule containing electron dense myelin figure like structure were observed. CONCLUSION: Long term injection of L-arginine analogue produced preeclampsia like syndrome and pathologic changes of organ system in pregnant rabbits. Concurrent high dose of L-arginine reversed such chages.
Arginine*
;
Blood Cells
;
Blood Pressure
;
Catheters
;
Chemistry
;
Cytoplasm
;
Ear
;
Femoral Artery
;
Fetus
;
Foot
;
Formaldehyde
;
Glutaral
;
Ketamine
;
Kidney
;
Liver
;
Lung
;
Microscopy, Electron
;
Models, Animal*
;
Myelin Sheath
;
NG-Nitroarginine Methyl Ester
;
Nitric Oxide Synthase*
;
Nitric Oxide*
;
Placenta
;
Platelet Count
;
Pre-Eclampsia*
;
Pregnancy
;
Rabbits
;
Veins