1.Acromioclavicular joint dislocation associated with acromion and clavicular fracture: A case report.
Seung Gyun CHA ; Won Suek LEE ; kyung Hoon KIM ; Sang In HAN ; Eung Ju KIM
The Journal of the Korean Orthopaedic Association 1993;28(1):193-197
No abstract available.
Acromioclavicular Joint*
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Acromion*
;
Dislocations*
2.The clinical analysis of tibial shaft fracture at the primary trauma hospital.
Seung Gyun CHA ; Won Suck LEE ; Kyung Hoon KIM ; Eung Ju KIM ; Sung Ho KOO ; Young Ho CHAE
The Journal of the Korean Orthopaedic Association 1993;28(7):2589-2596
No abstract available.
3.Diagnosis and treatment of calcaneal fractures by computed tomography.
Seung Gyun CHA ; Won Suck LEE ; Kyung Hoon KIM ; Eung Ju KIM ; Su Young JEON ; Sung Ho KOO
The Journal of the Korean Orthopaedic Association 1993;28(7):2610-2617
No abstract available.
Diagnosis*
4.Early and Late Intravitreal Bevacizumab Injection in Macular Edema Due to Branch Retinal Vein Occlusion.
Young Gyun KIM ; Eung Suk KIM ; Moo Sang KIM ; Seung Young YU ; Hyung Woo KWAK
Journal of the Korean Ophthalmological Society 2009;50(10):1527-1530
PURPOSE: To compare the effects of early and late intravitreal injection of bevacizumab in patients with macular edema (ME) due to branch retinal vein occlusion (BRVO). METHODS: The study sample included 56 eyes of 56 patients who received intravitreal bevacizumab injection for ME due to BRVO and were followed up with at least six months of observation. We retrospectively divided eyes into two classes that included 36 eyes with a disease duration of < or= 3 months (early treatment group) and 20 eyes with a disease duration of > 3 months (late treatment group). We assessed the effects of injection on the best corrected visual acuity (BCVA), central retinal thickness and IOP at one, three, and six months after treatment. RESULTS: There was no statistically significant differences in terms of sex, age, number of injections, ischemia, pre-injection visual acuity and central retinal thickness between the two treatment groups. Improvements in central retinal thickness were observed in both groups but were not significantly different between the groups. Visual acuity improved in both groups after treatment; the improvement was significantly better in the early treatment group observed three and six months after treatment. IOP did not change after treatment in either group. CONCLUSIONS: In cases of ME due to BRVO, early intravitreal bevacizumab injection is more effective than late injection for maintaining and improving visual acuity.
Antibodies, Monoclonal, Humanized
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Eye
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Humans
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Intravitreal Injections
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Ischemia
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Macular Edema
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Retinal Vein
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Retinal Vein Occlusion
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Retinaldehyde
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Retrospective Studies
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Visual Acuity
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Bevacizumab
5.Correlation between Topographic Progression of Geographic Atrophy and Visual Acuity Changes
Jong In YOU ; Do Gyun KIM ; Seung-Young YU ; Eung Suk KIM ; Kiyoung KIM
Korean Journal of Ophthalmology 2021;35(6):448-454
Purpose:
To analyze topographic progression of geographic atrophy with different concentric circles centered on the fovea in correlation with decrease of visual acuity.
Methods:
We retrospectively analyzed 36 eyes of 26 patients diagnosed with geographic atrophy and followed at least 1 year. One millimeter circular area at the foveal center were defined as zone 1, and doughnut shape areas from between 1 and 2 mm to between 5 and 6 mm were defined as zone 2 to 6. Then, changes of geographic atrophy area in each zone were measured with semi-automatic software. Correlation analysis and regression analysis were performed to determine the relationship between changes in visual acuity and atrophic area in each zone.
Results:
Mean age was 76.9 years and follow-up period were 3.38 years. The mean atrophic area increased from 8.09 to 16.34 mm2 and visual acuity decreased from 0.39 to 0.69 on logarithm of the minimal angle of resolution. Mean change of total geographic atrophy area was not significantly correlated with visual acuity decrease. While geographic atrophy progression within zone 1, 2, and 3 showed significant causal relationship with decrease of visual acuity (all, p < 0.05).
Conclusions
In contrast to the total geographic atrophy area, progression of geographic atrophy in parafoveal area was significantly correlated with decrease of visual acuity.
6.Comparison of Gap Pressure in Opening Wedge High Tibial Osteotomy versus Compressive Strength of Allogenous Wedge Bone Blocks
Kyoung Ho YOON ; Jung Suk KIM ; Yoo Beom KWON ; Eung Ju KIM ; Myeong-Kyu LEE ; Sang-Gyun KIM
The Journal of the Korean Orthopaedic Association 2020;55(2):127-134
Purpose:
The aims of this study were (1) to investigate the relationship between the characteristics of allogenic bone block and the compressive strength of an allogenic bone block measured by biomechanical experiments, and (2) to compare the maximum pressure load of allogenic bone block with the gap pressure measured at the high tibial opening osteotomy.
Materials and Methods:
Ten patients who provided informed consent for gap pressure measurements during opening wedge high tibial osteotomy (OWHTO) were included. The gap pressures were measured at 1 mm intervals while opening the osteotomy site from 8 mm to 14 mm. Seventeen U-shaped allogenous wedge bone blocks were made from the femur, tibia, and humerus. The height, width, cross-sectional area, and cortex thickness of the bone blocks were measured, along with the maximum compressive load just before breakage. The relationship between these characteristics and the maximum pressure load of the bone blocks was evaluated. The gap pressures measured in OWHTO were compared with the maximum pressure loads of the allogenous wedge bone blocks to evaluate the possibility of inserting allogenous wedge bone blocks into the osteotomy site without a distractor in OWHTO.
Results:
The OWHTO gap pressure increased with increasing osteotomy site opening. The mean gap pressure, which occurred at a 14-mm opening, was 282±93 N; the maximum pressure was 427 N. The maximum pressure load of the allografts was 13,379±6,469 N (minimum, 5,868; maximum, 29,130 N) and was correlated significantly with the cortical bone thickness (correlation coefficient=0.693, p=0.002) and cross-sectional area (correlation coefficient=0.826, p<0.001). Depending on the sterilization method, the maximum pressure loads for the bone blocks were 13,406±5,928 N for freeze-dried and 13,348±7,449 N for fresh frozen. The maximum compressive load of the allogenous wedge bone blocks was 13.7-times greater than that in OWHTO opened to 14 mm (5,868 N vs. 427 N).
Conclusion
The compressive strength of allogenous wedge bone blocks was sufficiently greater than the gap pressure in OWHTO. Therefore, allogenous wedge bone blocks can be inserted safely into the osteotomy site without a distractor.
7.The Comparison of Macular Thickness Measurements and Repeatabilities Between Time Domain and Spectral Domain OCT.
Sung Woon MOON ; Eung Suk KIM ; Young Gyun KIM ; Seung Young YOO ; Hyung Woo KWAK
Journal of the Korean Ophthalmological Society 2009;50(7):1050-1059
PURPOSE: To compare macular thickness measurements obtained from time domain optical coherence tomography (TD-OCT) and 2 spectral domain (SD) OCTs and to evaluate their repeatability and agreement in normal subjects and diabetic macular edema patients. METHODS: Fifty-four healthy, normal subjects and 26 diabetic macular edema patients were participated in this study. In a randomly selected eye from each subject, two serial macular measurements were obtained from TD-OCT (Stratus OCT) and SD-OCTs (Cirrus HD-OCT, Spectralis HRA+OCT) by an experienced technician in random order. Nine areas of macular thickness map and repeatabilities obtained by the 3 OCTs were compared. RESULTS: In relative repeatability, SD-OCT showed better results overall compared to TD-OCT. Macular thickness was greatest in the Spectralis HRA+OCT in both normal subjects and diabetic macular edema patients, followed by Cirrus HD-OCT and Stratus OCT. In normal subjects, regardless of the type of comparison between the machines there was a statistically significant difference in all 9 areas. CONCLUSIONS: While the TD-OCT and the 2 SD-OCTs are reliable for macular thickness measurement, SD-OCT has better measurement repeatability compared with TD-OCT. Because macular measurements obtained from the 3 OCT systems cannot be interchanged, an effort should be made to standardize the measurement of each system.
Eye
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Humans
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Macular Edema
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Tomography, Optical Coherence
8.Tracheal augmentation with Bovine pericardium.
Boo Yeon KIM ; Kyo Joon LEE ; Hwa Gyun SHIN ; Eung Suk LEE
The Korean Journal of Thoracic and Cardiovascular Surgery 2000;33(4):320-323
This case describes a tracheal stenosis complicated by endobronchial truberculosis. A 50-year-old female with progressive dyspnea was referred to us for the management of long segmental tracheal stenosis. Treatment modalities for tracheal stenosis include open surgical resectin and reconstruction, mechanical dilation, laser resection, and placement of an airway prosthesis. The following is a report of a successful treatment of a long segmental tracheal stenosis through a tracheal augmentation and the use of al Bovine pericardium. This technique may provide a relief from tracheal stenosis.
Dyspnea
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Female
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Humans
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Middle Aged
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Pericardium*
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Prostheses and Implants
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Tracheal Stenosis
10.The Effect of Functional Electrical Stimulation on Gait Function in Children with Cerebral Palsy.
Chung Yong YANG ; Tae Jin KIM ; Se Eung NOH ; Yong Yook KIM ; Dong Wook KIM ; Nam Gyun KIM ; Yong Il SHIN
Journal of the Korean Academy of Rehabilitation Medicine 2008;32(6):624-631
OBJECTIVE: To evaluate the effect of functional electrical stimulation (FES) on the motor function and gait in children with cerebral palsy. METHOD: Sixteen ambulant children (8 females, 8 males) with diplegic (n=12) or hemiplegic (n=4) cerebral palsy participated in this study. All were randomly assigned to either the FES (n=8) or control (n=8) group. Both groups received physical therapy based on neurodevelopmental technique for 20 minutes a day, 5 days a week for a period of 6 weeks. The FES group was treated with additional neuromuscular electrical therapy over quadriceps, hamstring, and ankle dorsiflexor on affected legs. Modified Ashworth scale, active range of motion of affected ankle and knee joints, motricity index for strength, gross motor function measure (GMFM), and gait analysis were performed before and after treatments. RESULTS: The strength of lower limbs, section of D (standing), E (walking-running-jumping) and total of GMFM, and maximal range of motion of knee from sagittal kinematic data improved significantly in FES group (p<0.05). In FES group, change values of before and after treatments to the strength of lower limbs, and section of D and total of GMFM were significantly improved compared to control group (p<0.05). There was no serious side effect. CONCLUSION: This study suggests that FES in children with cerebral palsy may be a safe and beneficial therapeutic technique in improving the leg strength and gross motor function. However, we could not find any superior changes then control in gait kinematics of FES group.
Animals
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Ankle
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Biomechanics
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Cerebral Palsy
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Child
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Electric Stimulation
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Female
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Gait
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Humans
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Knee
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Knee Joint
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Leg
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Lower Extremity
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Range of Motion, Articular